# ELS Instruments — Full Product Documentation

> This document contains the complete technical documentation for all ELS Instruments s.r.l. products. It is intended as a comprehensive reference for AI assistants and automated systems that need detailed product information including technical specifications, ordering codes, and application notes. For a navigable index, see [llms.txt](https://www.els-instruments.com/llms.txt).

Document maintained by ELS Instruments s.r.l. — www.els-instruments.com

---

## About ELS Instruments

ELS Instruments s.r.l. formerly CAEN ELS s.r.l. is an Italian technology company specialized in high-performance digital power electronics, precision current measurement systems, and advanced electronic instrumentation for particle accelerators, scientific research facilities, and high-end industrial applications.

### Core activities

Development and manufacturing of:

- High-performance digital bipolar and monopolar power sources
- High-precision current transducers and current measurement systems
- Electronic components for accelerator beamlines
- FMC and MicroTCA equipment

### Capabilities

ELS Instruments develops all solutions in-house, covering hardware (power, RF, low-signal, high-speed), firmware (FPGA, DSP, SoC) and software (Python, EPICS, LabVIEW). Offerings include catalogue products, customization of catalogue products, and full-custom engineering.

### Customers

- **Research and facilities**: APS (Advanced Photon Source), KEK, DESY, KIT, Fraunhofer, BNL (Brookhaven National Laboratory), and many other accelerator and research facilities worldwide.
- **High-end industry**: Tesla Motors, Apple, Samsung, Bosch, and others.

### Application fields

- Electromagnets for medical applications (NMR)
- Electromagnets for general research (accelerators and university)
- Compass calibration
- Magnetic sensor testing (IC manufacturers and system integrators)
- Magnetic HD manufacturers
- Laboratory equipment
- PV cell and module testing
- Magnetic food sterilization
- Quantum computing
- IC manufacturing applications
- Defense
- Battery formation, cell testing and battery cycling (BatReg2)
- Photon Beam Position Monitoring (BPM) systems
- Superconducting magnet quench detection

### Quality certifications

- ISO 9001:2015 — Quality Management System
- ISO 14001:2015 — Environmental Management System

### Product lines

ELS Instruments organizes its catalogue into four main product lines:

1. **Power Supply Systems** — Digital bipolar/monopolar/bidirectional/regenerative power supplies, controllers, quench detection
2. **Precision Current Measurements** — 0-FLUCS DCCT current transducers and digital readout boxes
3. **Beamline Electronics Instrumentation** — Picoammeters and beam position monitoring systems
4. **FMC and MicroTCA** — AMC carrier boards, picoammeter modules, high-voltage modules, and FMC mezzanine cards

---

# Power Supply Systems

ELS Instruments power supplies share a common architecture with these key features:

- Digital control loop based on System-on-Chip (SoC: FPGA + CPU) and DSP
- Extreme stability (long-term and temperature)
- High bandwidth and configurable digital control loop
- Unipolar, bipolar and 4-quadrant topologies available
- Low noise and ripple
- High flexibility and configurability
- High-performance connectivity: 10/100/1000 Mbit Ethernet TCP-IP/UDP and SFP/SFP+
- High efficiency, including regenerative technology
- High MTBF (>100,000 hours standard, >200,000 hours for select models)
- Optimized for electromagnets (correctors/steerers, quads, sextupoles, dipoles) and superconducting magnets

Most catalogue power supplies embed:

- Linux OS
- Embedded EPICS IOC
- Embedded web-server with GUI
- Embedded waveform generator
- Embedded multi-channel oscilloscope
- Configurable interlocks (time and logic level)
- Auto-tuning option

---

## FAST-PS — Multi-Interface Bipolar Digital Voltage- and Current-Controlled Fast Power Supply

The FAST-PS series is the bipolar power supplies by ELS Instruments, designed to deliver state-of-the-art performance both in current- and voltage-control modes. Models up to ±30 A and ±80 V are available to satisfy any need.

The embedded web-server makes controlling these power units straightforward. Features such as a 4-channel oscilloscope and a waveform generator can be easily accessed via the GUI and used for control and monitoring without external physical devices (e.g., oscilloscope and waveform generator units).

The 10/100/1000 Ethernet connection over TCP-IP or UDP and the two SFP slots allow controlling the power converter in different modes. The control loop is digital to obtain maximum flexibility and ease of configuration on any connected load (resistive, capacitive or inductive). The FAST-PS can be controlled in current- or voltage-control mode (or mixed) and both control loops can be remotely configured.

Internal protections (over-voltage, over-current, earth current leakage) are implemented along with external interlocks. Features like waveform, triggers, and an embedded Linux OS provide maximum flexibility. Units can also be locally controlled via a display and local interface. Trigger and analog control inputs are available as ordering options.

### Features

- 19"-1U stand-alone crate
- Models up to 30 A and up to 80 V
- Configurable digital control loop
- Current or voltage regulation
- <0.005 %/K temperature dependence
- Excellent long-term stability
- Analog control and trigger input — optional
- Fast SFP interface (10 kHz update)
- Waveform generation at 100 ksps
- Embedded 4-channel oscilloscope
- Embedded web-server
- External interlock and status signals
- Local display and controls
- 10/100/1000 Mbit Ethernet

### Applications

- Particle accelerators
- Magnet power supply
- Industrial / plant operation
- Motor and magnet drives
- PV cell testing
- Laboratory equipment
- Medical imaging

### Technical specifications

| Parameter              | 0520  | 0540    | 0580    | 1020  | 1040    | 2020  | 2040    | 3020  |
| ---------------------- | ----- | ------- | ------- | ----- | ------- | ----- | ------- | ----- |
| Output Current Range   | ±5 A  | ±5 A    | ±5 A    | ±10 A | ±10 A   | ±20 A | ±20 A   | ±30 A |
| Output Voltage Range   | ±20 V | ±40 V   | ±80 V   | ±20 V | ±40 V   | ±20 V | ±40 V   | ±20 V |
| Rated Output Power     | 100 W | 200 W   | 400 W   | 200 W | 400 W   | 400 W | 600 W   | 600 W |
| Closed Loop BW (-3 dB) | 5 kHz | 2.7 kHz | 1.6 kHz | 5 kHz | 2.7 kHz | 5 kHz | 2.7 kHz | 5 kHz |

Common specifications for all FAST-PS models:

- Output topology: Bipolar
- Regulation type: Constant Current (CC) or Constant Voltage (CV)
- Output current setting/readback: 24 bit
- Output voltage setting/readback: 24 bit
- Switching frequency: 100 kHz
- Output accuracy in CC: <0.05 %
- Output accuracy in CV: <0.05 %
- Temperature stability: <0.005 %/K
- Long-term stability (8 h): <0.005 %/FS
- Cooling: Forced air convection
- Input ratings: 90–260 VAC, 47/63 Hz
- Communication: Ethernet 10/100/1000 Mbit TCP-IP and UDP, 2× fast SFP ports
- External signals: 2× external interlock inputs (configurable dry contacts), 1× status output relay (magnetic)
- Internal interlocks: DC-link undervoltage, over-temperature, over-current, over-voltage, earth fault current, regulation fault, excessive current ripple
- Hardware protections: input fuses, crowbar (over-voltage)
- Auxiliary readbacks (12-bit): DC-link voltage, ground leakage current, temperature
- Operating ambient temperature: 0...50 °C
- Mechanical dimensions: 19" × 1U × 422 mm (including connectors)
- Weight: 6.5–7 kg

### Ordering codes

| Ordering Code | Acronym          | Description                                                                     |
| ------------- | ---------------- | ------------------------------------------------------------------------------- |
| FASTPS052001  | FAST-PS 0520-100 | Fast Corrector Current- and Voltage-Controlled Digital PS ±5 A @ ±20 V (100 W)  |
| FASTPS054002  | FAST-PS 0540-200 | Fast Corrector Current- and Voltage-Controlled Digital PS ±5 A @ ±40 V (200 W)  |
| FASTPS058004  | FAST-PS 0580-400 | Fast Corrector Current- and Voltage-Controlled Digital PS ±5 A @ ±80 V (400 W)  |
| FASTPS102002  | FAST-PS 1020-200 | Fast Corrector Current- and Voltage-Controlled Digital PS ±10 A @ ±20 V (200 W) |
| FASTPS104004  | FAST-PS 1040-400 | Fast Corrector Current- and Voltage-Controlled Digital PS ±10 A @ ±40 V (400 W) |
| FASTPS202004  | FAST-PS 2020-400 | Fast Corrector Current- and Voltage-Controlled Digital PS ±20 A @ ±20 V (400 W) |
| FASTPS204006  | FAST-PS 2040-600 | Fast Corrector Current- and Voltage-Controlled Digital PS ±20 A @ ±40 V (600 W) |
| FASTPS302006  | FAST-PS 3020-600 | Fast Corrector Current- and Voltage-Controlled Digital PS ±30 A @ ±20 V (600 W) |
| FASTPSACINXA  | FAST-PS AN-CTRL  | Analog Control Input (±10 V) on BNC connector — optional                        |
| FASTPSTRINXA  | FAST-PS TRG-IN   | Trigger Input on BNC connector — optional                                       |
| FASTPSHSXAAA  | FAST-PS HS       | High-Stability option with embedded 0-FLUCS DCCT — optional                     |

---

## FAST-PS-M — Monopolar Multi-Interface Digital Voltage- and Current-Controlled Fast Power Supply

The FAST-PS-M series is the new generation of monopolar power supplies by ELS Instruments, designed for state-of-the-art performance in both current- and voltage-control modes. Models rated at 600 W and 900 W with currents up to 100 A are commercially available.

The 10/100/1000 Ethernet connection and the two SFP slots (electrical or optical) allow controlling the power converter in two modes:

- "Standard" interface over Ethernet (up to 1 kHz) for cases where the power supply is controlled at lower rates and/or to set/monitor general parameters
- "Fast" interface over SFP for feedback loops and fast corrections, up to 10 kHz update rate

Low noise and high bandwidth make these power converters ideal upgrades for systems where higher performance is needed. Internal protections (over-voltage, over-current) and external interlocks are implemented. Units can be locally controlled via a display and local interface.

### Features

- 19"-1U stand-alone crate
- Models: 30A-30V, 60A-10V, 75A-8V and 100A-6V
- 10/100/1000 Mbit Ethernet interface
- 2× fast SFP interface (10 kHz update)
- Current and voltage regulation
- High stability with optional 0-FLUCS DCCT
- Analog control and trigger — optional
- Low noise
- Configurable digital control loop
- Internal protections and auxiliary readbacks
- Extended input range (90-260 VAC)
- Local display and control
- Embedded web-server
- Embedded AWG and 4-channel oscilloscope

### Applications

- Magnet power supplies
- Laboratory equipment
- Current or voltage control

### Technical specifications

- Switching frequency: 300 kHz (equivalent)
- Max current/voltage update: 10 kHz
- Accuracy: <0.05 %
- External interlocks/states: 2 inputs (user-configurable "dry" contacts), 1 output relay (2 magnetic contacts)
- Internal interlocks: DC-link undervoltage, over-temperature, over-current, over-voltage, earth fault current, regulation fault, excessive current ripple, DCCT OK
- Hardware protections: input fuses, earth fuse, over-voltage
- Auxiliary ADC readbacks: DC-link voltage, ground leakage current, temperature
- Cooling: on-module self-regulated fans
- Connections: 1× Ethernet 10/100/1000, 2× SFP ports
- Extra features: point-by-point current waveform loading, user-definable interlock thresholds/active levels/timings, firmware remote updates, optional analog control input (1 kHz BW)
- Dimensions (W×H×D): 19" – 1U; 600 W models = 425 mm (including connectors); 900 W models = 466 mm
- Input voltage: 90/260 VAC, 47-63 Hz
- Efficiency: up to 85 %
- Power factor: >0.95
- Local control/monitor: graphic display and encoder, 6 LEDs

### Ordering codes

| Ordering Code | Acronym            | Description                                                                |
| ------------- | ------------------ | -------------------------------------------------------------------------- |
| FASTPSM3030A  | FAST-PS-M 3030-900 | Current- and Voltage-Controlled Digital PS 30 A @ 30 V (900 W max)         |
| FASTPSM6010A  | FAST-PS-M 6010     | Current- and Voltage-Controlled Digital PS 60 A @ 10 V (600 W max)         |
| FASTPSM7508A  | FAST-PS-M 7508     | Current- and Voltage-Controlled Digital PS 75 A @ 8 V (600 W max)          |
| FASTPSM1006A  | FAST-PS-M 1006     | Current- and Voltage-Controlled Digital PS 100 A @ 6 V (600 W max)         |
| FASTPSACINXA  | FAST-PS-AN-IN      | Analog Control Input (0-10 V) on BNC connector — optional, 1-kHz Bandwidth |
| FASTPSTRINXA  | FAST-PS-TR-IN      | Trigger Input on BNC connector — optional                                  |

---

## FAST-PS+ — Compact High-Precision Bidirectional Power Supply

The FAST-PS+ series is ELS-INSTRUMENTS' next-generation compact bidirectional power supply, engineered for demanding applications in particle accelerator magnet powering and high-precision laboratory environments.

Available in single power stage 4-quadrant configuration with a damping option, the series covers output ranges from ±6 A / ±100 V to ±30 A / ±20 V in a compact 19"-1U form factor.

The fully digital control loop supports Constant Current (CC), Constant Voltage (CV), Constant Power (CP) and Constant Resistance (CR) regulation modes with 24-bit resolution. The optional DCCT current sensing provides high accuracy and stability over a wide temperature operating range. Connectivity via 10/100/1000 Mbit Ethernet (TCP-IP/UDP) and two fast SFP+ optical ports at 100-kHz update rates.

### Features

- 19"-2U stand-alone crate
- Bipolar, bidirectional 4-quadrant
- Models from ±6 A...±30 A and ±20 V...±100 V
- Configurable digital control loop
- CC, CV, CP and CR regulation modes
- 24-bit current and voltage setting/readback
- <0.0002 %/K temperature dependence with optional embedded DCCT
- <0.001 % long-term stability (8 h) with optional embedded DCCT
- Optional analog control (±10 V) and trigger input
- Fast SFP+ interface — 100-kHz update rate
- Optional auxiliary ADC and K-type thermocouple
- Optional active crowbar protection
- Optional high-bandwidth fast response
- Optional damping unit for 4-quadrant operation
- Waveform generation at 100 kHz
- Embedded 4-channel oscilloscope
- Embedded web-server and EPICS IOC
- 4× external interlock inputs
- Persistent switch heater output
- 10/100/1000 Mbit Ethernet TCP-IP / UDP

### Applications

- Superconducting magnets
- Magnet power supply for particle accelerators
- Configurable active load
- PV cell testing
- R&D and laboratory power sources

### Technical specifications

| Parameter      | 05-20 | 10-20 | 20-20 | 30-20 | 05-40 | 10-40 | 20-40 | 6-100  |
| -------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ------ |
| Output Current | ±5 A  | ±10 A | ±20 A | ±30 A | ±5 A  | ±10 A | ±20 A | ±6 A   |
| Output Voltage | ±20 V | ±20 V | ±20 V | ±20 V | ±40 V | ±40 V | ±40 V | ±100 V |
| Rated Power    | 100 W | 200 W | 400 W | 600 W | 200 W | 400 W | 600 W | 600 W  |

Optional dissipative power: continuous 100 W; 30 sec. 150 W; 3 sec. 200 W

Common specifications:

- Output topology: 4-quadrant
- Regulation: CC, CV, CP, CR with PID auto-tuning
- Setting/readback: 24 bit
- Rise time 10-90 %: <70 µs (typical)
- Closed loop BW: 5 kHz standard / high-BW option available
- Output accuracy: <0.05 % (<0.01 % with DCCT)
- Temperature stability: <0.004 %/K (<0.0002 %/K with DCCT)
- Long-term (8 h): <0.05 %/FS (<0.001 %/FS with DCCT)
- Current sensing: internal shunt (standard) or DCCT (H code)
- Switching frequency: 100 kHz
- Input ratings: 100–240 VAC / 47–63 Hz
- Interfaces: 10/100/1000 Mbit Ethernet TCP-IP and UDP, 2× SFP+ fast optical ports
- External signals: 4× interlock inputs, status relay, output relay, PSH output, trigger (opt.), analog ±10 V (opt.), 16-bit ADC (opt.), K-type TC (opt.)
- Interlocks: DC-link undervoltage, over-temperature, OCP/OVP, earth fault, regulation fault
- Mechanical: 19" × 1U × ~500 mm, forced air cooling
- Operating temperature: 0...50 °C

---

## FAST-Bi-1K5 — 1.5-kW Bipolar Bidirectional and Regenerative Power Supply

The FAST-Bi-1K5 series is the new generation of bidirectional and regenerative power supplies by ELS Instruments. These outstanding power sources are designed to safely return excess energy to the grid while delivering state-of-the-art performance in current, voltage, power and resistance control modes. Models up to ±150 A and ±100 V are available.

A 4-channel oscilloscope and waveform generator can be easily accessed via the Web Interface GUI and used for control and monitoring, without the need for external physical devices. The 10/100/1000 Mbit Ethernet connection over TCP-IP or UDP and the two SFP+ slots allow controlling the power converter in different modes.

The control loop is digital for maximum flexibility and ease of configuration on any connected load. PID Auto Tuning automatically tailors the power supply output behaviour to the specific load. Up to 4 units of the same type can be paralleled, supplying up to ±600 A / ±10 V or ±80 A / ±100 V (6 kW maximum). Paralleling is performed via the optical SFP+ links on the front panel.

### Features

- 19"-2U stand-alone crate
- Bipolar, regenerative and bidirectional, full 4-quadrant
- Models up to ±150 A and up to ±100 V
- Configurable digital control loop
- Current (CC), Voltage (CV), Power (CP) and Resistance (CR) regulation
- <0.0002 %/K temperature dependence
- <0.001 % long-term stability (8 h)
- Optional analog control input, trigger input, auxiliary ADC input and K-type thermocouple readout
- Fast SFP+ interface (100-kHz update)
- Waveform generation at 100 kHz
- Embedded 4-channel oscilloscope
- Embedded web-server
- Embedded EPICS IOC
- External interlocks and status signals
- Local display and controls
- 10/100/1000 Mbit Ethernet TCP-IP or UDP
- Quench detection capability for SC magnets
- Persistent Switch Heater output
- Paralleling up to 4 units (6 kW)

### Applications

- Battery testing
- Superconducting magnets
- Magnet power supply
- PV cell testing
- Configurable active load
- Quantum computing

### Technical specifications

| Parameter              | 15010   | 10020   | 5040    | 3050    | 20100   |
| ---------------------- | ------- | ------- | ------- | ------- | ------- |
| Output Current Range   | ±150 A  | ±100 A  | ±50 A   | ±30 A   | ±20 A   |
| Output Voltage Range   | ±10 V   | ±20 V   | ±40 V   | ±50 V   | ±100 V  |
| Rated Output Power     | 1500 W  | 1500 W  | 1500 W  | 1500 W  | 1500 W  |
| Equiv. Switching Freq. | 400 kHz | 400 kHz | 200 kHz | 200 kHz | 200 kHz |

Common specifications:

- Output topology: full 4-quadrant
- Regulation: CC, CV, CP, CR
- Current/voltage setting/readback: 24 bit
- Efficiency AC/DC: >83 % to >87 % depending on model
- Efficiency DC/AC: >83 % to >87 % depending on model
- Rise time 10-90 %: <70 µs
- Closed loop bandwidth (-3 dB): 5 kHz
- Output accuracy: <0.01 %
- Temperature stability: <2 ppm/K
- Long-term stability (8 h): <0.001 %/FS
- Cooling: forced air convection
- Input ratings: 180–264 VAC, 47-63 Hz
- Communication: 10/100/1000 Mbit Ethernet TCP-IP and UDP, 2× fast SFP ports
- External signals: 4× external interlock inputs (configurable dry contacts), 1× status output relay (magnetic), 1× output relay (solid state), 1× persistent switch heater output, 1× trigger input (LVTTL/TTL — optional), 1× analog control input (±10 V — optional), 1× 16-bit 100-ksps ADC input for readout of external values/sensors — optional
- Internal interlocks: DC-link undervoltage, over-temperature, over-current, over-voltage, earth fault current, regulation fault
- Hardware protections: input fuses, crowbar (over-voltage)
- Auxiliary readbacks (12-bit): DC-link voltage, ground leakage current, temperature
- Operating ambient temperature: 0...50 °C
- Mechanical: 19" × 2U × 587 mm (including connectors)
- Weight: 15 kg

---

## BatReg2 — Bidirectional Regenerative High-Precision Digital Battery Cyclers/Testers

The BatReg2 (Battery Regenerative Regulator) series is the new generation of bidirectional and regenerative power supplies specifically designed for the demanding needs of precision battery testing and cycling. These units safely return excess energy to the grid while delivering state-of-the-art performance in all output control modes. Single models up to 100 V and ±150 A are available.

These modules embed a polarity detection circuit that safely checks the connection to the battery to prevent damage or risks, enabling the output only on a positive check.

A 4-channel oscilloscope at 100 ksps/channel and an Arbitrary Waveform Generator (AWG) are accessible via the Web Interface GUI in the embedded web-server. The 10/100/1000 Mbit Ethernet connection over TCP-IP or UDP and the two SFP+ slots allow controlling the power converter in different modes. The control loop is digital for maximum flexibility on any connected battery type (cells, modules and packs).

The BatReg2 power units feature high efficiency in both charging and discharging modes. The regenerative architecture sends energy back into the grid in the discharge phase. Cost savings for a 100-unit installation may reach 150,000–200,000 USD/year (estimated based on Electricity Price in New York State, August 2024 — 0.276 USD/kWh, with all power supplies considered to be working continuously as sources for 12 hrs/day and as sinks for the other 12 hrs/day at full output power).

External configurable interlocks, over-voltage and over-current protections are available via the on-board SoC (FPGA+CPU) and DSP.

### Features

- Bidirectional and regenerative
- Battery polarity detection circuit
- Models up to 100 V and up to 150 A
- High efficiency for energy and cost savings
- Configurable digital control loop
- Maximum sampling at 100 ksps 24-bit
- Analog control input, trigger input, auxiliary ADC input and K-type thermocouple temperature readout — optional
- Embedded waveform generation and 4-channel oscilloscope at 100 ksps 24-bit
- Embedded web-server
- Configurable acoustic alarm
- External interlocks and status signals
- 10/100/1000 Mbit Ethernet TCP-IP or UDP connectivity

### Applications

- Battery testing and cycling
- Battery charging
- Battery simulation

### Technical specifications

| Parameter              | 10-150  | 20-100  | 40-50   | 50-30   | 100-20  |
| ---------------------- | ------- | ------- | ------- | ------- | ------- |
| Output Voltage Range   | 0–10 V  | 0–20 V  | 0–40 V  | 0–50 V  | 0–100 V |
| Output Current Range   | ±150 A  | ±100 A  | ±50 A   | ±30 A   | ±20 A   |
| Rated Output Power     | 1500 W  | 1500 W  | 1500 W  | 1500 W  | 2000 W  |
| Equiv. Switching Freq. | 400 kHz | 400 kHz | 200 kHz | 200 kHz | 200 kHz |

Common specifications:

- Output topology: bidirectional
- Regulation type: Constant Current (CC), Constant Voltage (CV), Constant Power (CP)
- Current setting/readback: 24 bit
- Voltage setting/readback: 24 bit
- Efficiency AC/DC: >86 %
- Efficiency DC/AC: >80 %
- Power factor AC/DC: >0.98
- Power factor DC/AC: >0.99
- Rise time 10-90 %: <60 µs (from a step signal of 5 % of full-scale rated voltage on resistive load in CV)
- Closed loop bandwidth (-3 dB): >6 kHz
- Output accuracy (RMS): <0.01 %/FS
- Temperature stability: <5 ppm/K/FS in CC
- Long-term stability (8 h): <0.001 %/FS in CC
- Cooling: forced air convection
- Input ratings: 180–264 VAC / 47–63 Hz
- Communication: 10/100/1000 Mbit Ethernet TCP-IP and UDP, 2× fast SFP+ ports
- External signals: acoustic alarm (enabled/disabled), 4× external interlock inputs (configurable dry contacts), 1× status output relay (magnetic), 1× output relay (solid state), 1× trigger input (LVTTL/TTL — FB1K5OPT0001 option), 1× analog control input (±10 V — FB1K5OPT0001 option), 1× 16-bit 100-kHz ADC input for readout of external sensors — FB1K5OPT0001 option
- Internal interlocks: DC-link undervoltage, over-temperature, over-current and over-voltage, regulation fault
- Hardware protections: battery polarity detection circuit with embedded output enable switch, input fuses
- Operating ambient temperature: 0...50 °C
- Mechanical dimensions: 19" × 2U × 587 mm (including connectors)
- Weight: 15 kg

### Ordering codes

| Ordering Code | Acronym                      | Description                                                                                          |
| ------------- | ---------------------------- | ---------------------------------------------------------------------------------------------------- |
| BREG2010150A  | BatReg2 10-150               | High-Precision Digital Battery Regenerative Regulator (10 V, ±150 A)                                 |
| BREG2020100A  | BatReg2 20-100               | High-Precision Digital Battery Regenerative Regulator (20 V, ±100 A)                                 |
| BREG2040050A  | BatReg2 40-50                | High-Precision Digital Battery Regenerative Regulator (40 V, ±50 A)                                  |
| BREG2050030A  | BatReg2 50-30                | High-Precision Digital Battery Regenerative Regulator (50 V, ±30 A)                                  |
| BREG2100020A  | BatReg2 100-20               | High-Precision Digital Battery Regenerative Regulator (100 V, ±20 A)                                 |
| FB1K5OPT0001  | ANALOG, AUX, TRIGGER, K-TYPE | Analog Control, Auxiliary ADC, Trigger and K-type thermocouple Inputs add-ons — optional for BatReg2 |

---

## NGPS — 10-kW New Generation High-Stability Digital Controlled Power Supply

The NGPS (New Generation Power Supply) series is a set of power converters that combines know-how and technology to deliver outstanding performance and functionality. Models rated at 100 A / 100 V, 140 A / 50 V, 200 A / 50 V and 300 A / 30 V are commercially available and can be paralleled up to 40 kW (e.g., 400 A / 100 V or 800 A / 50 V). Different ratings as well as water-cooled versions are available upon request.

The use of a 0-FLUCS DCCT as the sensing element, combined with thermal-stabilized electronic sections, makes this power supply have the lowest temperature dependence on the market — less than 2 ppm/K. The 10/100/1000 Ethernet connection and the two SFP slots allow controlling the power converter in different modes. Paralleling can also be performed via the fast SFP links on the front panel (accessories available for ordering).

Several internal protections are implemented and can be configured depending on the application. Features like waveform, triggers, etc. are present in these state-of-the-art units that embed a Linux OS. Units can be locally controlled via display and local interface.

The NGPS targets the most demanding accelerator applications. For APS-U (Advanced Photon Source Upgrade), a special variant achieves output current seven-day stability (peak-to-peak) <10 ppm/FS, output current 24-hour stability (peak-to-peak) <5 ppm/FS, output current temperature stability <2 ppm/FS/K. After dedicated design effort (component selection), an MTBF >200,000 hours has been achieved based on MIL-HDBK-217 (standard NGPS units have MTBF >102,000 hours).

### Features

- 19"-3U stand-alone crate
- 100 A-100 V, 200 A-50 V, 300 A-30 V models
- Configurable digital control loop
- Parallel operation up to 40 kW
- Current or voltage regulation
- 2 ppm/°C temperature dependence
- Excellent long-term stability
- External analog control and auxiliary analog inputs
- Waveform generation at 40 ksps
- Embedded 4-channel oscilloscope
- Embedded web-server
- External interlock and status signals
- Local display and controls
- 10/100/1000 Mbit Ethernet
- Fast SFP interface (10 kHz update)
- Water-cooled models available
- Co-designed with selected partners

### Applications

- Particle accelerators
- Medical accelerators
- Industrial / plant operation
- Battery, supercapacitor, fuel cell testing
- PV cell testing
- Medical imaging

---

## EASY-DRIVER — Compact Digital Bipolar Power Supply

The EASY-DRIVER series is composed of different digital bipolar power supply models rated at ±1 A / ±12 V, ±2 A / ±20 V, ±5 A / ±20 V and ±10 A / ±20 V. The 10/100 Mbit Ethernet connection allows controlling the power converter in a simple and reliable way, especially when used in large installations (TCP-IP or UDP).

The current control loop is fully digital for maximum flexibility and ease of configuration on any connected load. EASY-DRIVER models present a great performance-to-price ratio, with excellent characteristics at competitive pricing.

Low noise and AC bandwidth are key features, based on a dual-DSP (Digital Signal Processing) architecture. Internal protections (over-voltage, over-temperature) and an external interlock signal are provided. A crowbar circuit is embedded in each unit to discharge the energy stored in inductive loads, protecting the load and the power unit. A status relay on the rear signals output status (enabled/disabled).

EASY-DRIVER units have a local display to monitor output current and voltage; LED indicators summarize the power supply status in real-time. A free dedicated software, "Visual EASY-DRIVER", is available for control and monitoring.

### Features

- 19"-1U stand-alone crate
- Models up to ±10 A and up to ±20 V
- Configurable digital control loop
- True bipolar zero-crossing operation
- Low noise
- Internal protections and auxiliary readbacks
- External interlock and status signal
- Low temperature dependence
- Excellent long-term stability
- Extended input range (90-260 VAC)
- Local display for monitoring
- 10/100 Mbit Ethernet
- "Visual EASY-DRIVER" free software available

### Applications

- Particle accelerators
- Laboratory test equipment
- Current control
- Magnetic field generation

### Technical specifications

| Parameter            | 0112  | 0220  | 0520  | 1020  |
| -------------------- | ----- | ----- | ----- | ----- |
| Output Current Range | ±1 A  | ±2 A  | ±5 A  | ±10 A |
| Output Voltage Range | ±12 V | ±20 V | ±20 V | ±20 V |
| Rated Output Power   | 12 W  | 40 W  | 100 W | 200 W |

Common specifications:

- Output topology: bipolar
- Regulation type: Constant Current (CC)
- Output current setting resolution: 16 bit
- Output current readback resolution: 20 bit
- Output voltage readback resolution: 20 bit
- Switching frequency: 104 kHz
- CC closed loop bandwidth (-3 dB): 1 kHz
- Output accuracy in CC: <0.05 %
- Output current ripple: 0.004 %/FS — resistive load
- Temperature stability: <0.004 %/K in CC mode
- Long-term stability (8 h): <0.004 %/FS — typical
- Cooling: forced air convection
- Input ratings: 90–260 VAC, 47/63 Hz
- Communication: Ethernet 10/100/1000 Mbit TCP-IP and UDP
- External signals: 1× external interlock, 1× status output
- Internal interlocks: DC-link undervoltage, MOSFET over-temperature, shunt over-temperature
- Hardware protections: input fuses, crowbar (over-voltage)
- Auxiliary readbacks (12-bit): DC-link voltage, MOSFET temperature, shunt temperature
- Operating ambient temperature: 0...50 °C
- Mechanical: 19" × 1U × 295 mm (including connectors)
- Weight: 4 kg

### Ordering codes

| Ordering Code | Acronym               | Description                                                                              |
| ------------- | --------------------- | ---------------------------------------------------------------------------------------- |
| EASYDRV0112A  | EASY-DRIVER 0112      | Digital Bipolar Current Power Supply (±1 A @ ±12 V — 12 W)                               |
| EASYDRV0220A  | EASY-DRIVER 0220      | Digital Bipolar Current Power Supply (±2 A @ ±20 V — 40 W)                               |
| EASYDRV0520A  | EASY-DRIVER 0520      | Digital Bipolar Current Power Supply (±5 A @ ±20 V — 100 W)                              |
| EASYDRV1020A  | EASY-DRIVER 1020      | Digital Bipolar Current Power Supply (±10 A @ ±20 V — 200 W)                             |
| EDRV1020C001  | EASY-DRIVER 1020 C001 | Digital Bipolar Current Power Supply (±10 A @ ±20 V — 200 W) with 24 VDC Interlock Input |

---

## REGUL8OR — Universal High-Precision Power Supply Controller

The REGUL8OR is a breakthrough power supply controller that converts a programmable power supply unit or amplifier into a state-of-the-art power converter unit with built-in web-server, waveform generation and oscilloscope functions.

This fanless unit comes together with a 0-FLUCS current transducer by ELS Instruments and with voltage sensing terminals, supporting current measuring ranges up to 1000 A and 200 V. Any power converter within these ratings can be connected to the controller. Its current and voltage values are monitored and stabilized by the internal configurable digital control loop (on FPGA), so any load condition can be easily handled to obtain the desired response. This controller transforms any power converter into a ppm-level stability power unit with negligible line and load regulation values, greatly improving accuracy.

The programmable power supply connected to the REGUL8OR can be driven by multiple interfaces: a precision fast DAC (±5 V or ±10 V) or a 4-20 mA loop driver. The 10/100/1000 Ethernet connection over TCP-IP or UDP allows control with various programming languages and access to the embedded web-server. The web-server enables running pre-loaded or custom waveforms at 100 ksps and monitoring/recording the response of different values (output current, voltage, etc.) at 100 ksps per channel simultaneously.

The REGUL8OR is also used as the controlling unit in CPS (CAENels Power Systems) custom solutions, in partnership with selected manufacturers, for very high current or high power applications, with extra crates to make operation bipolar (SC magnets) and PDU (Power Distribution Unit).

### Features

- 19"-1U stand-alone crate
- Voltage and current control
- 100 kHz regulation loop
- Up to ±200 V and ±1000 A
- Used with 0-FLUCS current transducers
- Digital output regulation loop
- Waveform generation at 100 kHz
- Embedded 4-channel oscilloscope
- Embedded web-server
- External configurable interlocks and status signals
- External signals for analog control, analog acquisition, Hall probes and temperature sensors
- Local display and controls
- 10/100/1000 Mbit Ethernet
- Synchronization of multiple units
- Fanless operation

### Applications

- Programmable power supplies
- Laboratory equipment
- Power source emulation

### Technical specifications

- Output current ranges (using 0-FLUCS — sold separately): ±100 A, ±150 A, ±200 A, ±300 A, ±400 A, ±600 A, ±1000 A
- Output voltage ranges: ±5 V, ±10 V, ±20 V, ±50 V, ±100 V, ±200 V
- Maximum controllable power: 200 kW
- Regulation type: Constant Current (CC) or Constant Voltage (CV)
- Current setting/readback resolution: 24 bit
- Voltage setting/readback resolution: 24 bit
- Output readout resolution: 24 bit
- Line regulation: <0.0005 %/FS in CC mode
- Load regulation: <0.0005 %/FS in CC mode
- Temperature coefficient (TC): <0.0005 %/K in CC mode, <0.005 %/K in CV mode
- Long-term stability (8 h): <0.001 %/FS in CC mode, <0.001 %/FS in CV mode
- Overall accuracy: <0.01 %/FS in CC mode, <0.01 %/FS in CV mode
- Output control interfaces: analog voltage output ±5 V or ±10 V, analog current output 4-20 mA
- External interlocks: 4× inputs accepting dry-contacts, 2× inputs accepting 24 VDC (e.g., from PLC)
- External hardware interfaces: 2× output magnetic relays (NO, NC and CENTER TAP all available on connector), 2× output solid-state relays, 2× output isolated TTL (0-5 V) signals
- External signals: 1× analog control input (±10 V full-scale, 100 ksps @ 16 bit), 1× analog input (+4 V full-scale, 100 ksps @ 16 bit, e.g., for Hall probe readout), 1× 5-V or 20-mA configurable power output (e.g., to supply a Hall probe), 1× isolated SPI interface (4-wire), 1× external temperature sensor input (with 1.8 V and 3.3 V supply for the temperature sensor), 1× isolated trigger input, 1× sync IN and 1× sync OUT signals (to synchronize multiple controllers)
- Connectivity: 1× Ethernet 10/100/1000 Mbit TCP-IP or UDP, 2× SFP+ (6.25 Gbps)
- Extra features: embedded web-server, 4-channel embedded oscilloscope at 100 ksps, embedded waveform generator, embedded EPICS IOC, firmware remote update, synchronization of multiple units
- Local indicators: LCD display, LEDs
- Mechanical dimensions: 19" × 1U × 230 mm
- Weight: <2 kg
- AC input ratings: 90-264 VAC @ 47-63 Hz

---

## QDS — 4-Channel Multi-Range Precision Digital Quench Detection System

The QDS (Quench Detection System) is the new solution for any type of quench detection on superconducting magnets. It is composed of 4 independent channels, each one floating up to 100 V, that can be connected to voltage taps. Quench detection can be performed both in absolute or differential way, and the detection window can be configured from 1 ms to 1 s.

Each channel has eleven (11) different full-scale ranges, the largest one up to ±20 V (2.4 µV resolution) and the smallest one up to ±20 mV (2.5 nV resolution). The range of each channel can be set independently.

Each channel can float up to 100 V from ground and is fed to a signal conditioning network that converts it with 24-bit resolution and 100-kHz sampling rate. Interlock signals and output status signals are available for various uses (e.g., interfacing to a power supply for the superconducting magnet). Two power outputs (12 V and 24 V) can be used to drive a persistent switch.

A 10/100/1000 Mbit Ethernet connection allows fast data transmission and easy instrument control with various operating systems and programming languages. Internal firmware can be remotely updated.

### Features

- 4-channel simultaneous sampling
- Integration time configurable from 1 ms to 1 s
- 11 full-scale ranges for each channel, ranging from ±20 V to ±20 mV
- 24-bit ADC internal conversion
- Absolute and differential quench thresholds
- 10/100/1000 Ethernet connectivity
- 12-V and 24-V persistent switch drivers
- Interlocks and output status signals
- Firmware remote update
- Auto-ranging functionality
- On-board FPGA and soft-processor computations
- Compact mechanical dimensions
- Oscilloscope software available

### Applications

- Quench detection
- Superconducting magnets
- Precision floating voltage sensing

### Technical specifications

- Input channels: 4
- Input polarity: bipolar
- Input channel type: floating
- Twinax pin-to-pin max voltage: up to 200 V
- Twinax pin-to-shield max voltage: up to 500 V

Voltage measuring ranges:

| Range | Full-Scale   | LSB Resolution |
| ----- | ------------ | -------------- |
| RNG0  | ±20 V        | 2.4 µV         |
| RNG1  | ±10 V        | —              |
| RNG2  | ±5 V         | —              |
| RNG3  | ±2.5 V       | —              |
| RNG4  | ±1.25 V      | —              |
| RNG5  | ±625 mV      | —              |
| RNG6  | ±312.5 mV    | —              |
| RNG7  | ±156.25 mV   | —              |
| RNG8  | ±78.125 mV   | —              |
| RNG9  | ±39.0625 mV  | —              |
| RNG10 | ±19.53125 mV | 2.5 nV         |

- Internal sampling frequency: 100 kHz
- Sampling resolution: 24 bit
- Integration time (T): from 1 ms to 1 s
- Equivalent input bandwidth: T=10 ms → 45 Hz; T=50 ms → 9 Hz; T=100 ms → 5 Hz; T=500 ms → 1 Hz; T=1 s → 0.55 Hz
- Temperature coefficient: 0.0025 %/FS/K
- Communication interface: Ethernet 10/100/1000 TCP-IP or UDP
- Internal processing unit: FPGA and soft-processor
- External signals: 2× external interlocks, 12-V and 24-V persistent switch power, magnetic relay
- Input connectors: Twin ("Twinax") BNC
- Interlock/status connector: Weidmüller 1290260000 (mating: Weidmüller 1277900000)
- Additional features: auto-ranging, firmware remote upgrade, configurable integration time, configurable absolute and differential quench thresholds
- Cooling: blower fan
- Dimensions: 174 × 175 × 44 mm
- Weight: <850 g
- Supply voltage: +12 V
- Status indicators: 5 LEDs

### Ordering codes

| Ordering Code | Acronym | Description                                                                                            |
| ------------- | ------- | ------------------------------------------------------------------------------------------------------ |
| QDS4CHXAAAAA  | QDS     | 4-channel Quench Detection System with Persistent Switch Heater — ±20 V (max), ±20 mV (min) — BW=1 kHz |

---

# Precision Current Measurements

ELS Instruments produces a complete family of high-precision DC current transducers based on 0-FLUCS (0-FLUx Current Sensor) closed-loop technology. The family includes:

- **CT-PCB Series**: PCB-mount transducers (CT-13, CT-26, CT-52)
- **Standalone DCCTs**: CT-100, CT-150, CT-200, CT-300, CT-400, CT-600, CT-1000, CT-2000, CT-3000
- **CT-BOX**: digital readout/measuring unit for the entire DCCT family

Common features of the 0-FLUCS technology:

- AC and DC measurements separately or combined
- Standard accuracy: <100 ppm (<0.01 %) FS
- High-Accuracy Calibrated System: <50 ppm (<0.005 %) FS
- Voltage Output versions: standard accuracy <2500 ppm (<0.25 %) FS, optional accuracy <500 ppm (0.05 %) FS
- Temperature coefficient: <1 ppm/K FS
- High linearity: <3 ppm/FS
- Input noise: <1.5 ppm at 200 Hz, <10 ppm at 50 kHz
- Excellent AC amplitude and phase response up to 100 kHz
- 24-bit @ 100 kSPS sampling (in CT-BOX)
- Current Transformer Ratios (IS/IP): from 1:250 up to 1:2000 standard
- Galvanic isolation between primary and secondary conductors
- UL 94 V-0 flammability grade
- LED indicates correct operation

Companion power supplies: PS1215I and PS1215V low-noise power supplies are designed for optimal operation of ELS Instruments 0-FLUCS current transducers.

---

## CT-BOX — Digital Current Transducer Box

The CT-BOX is a standalone system designed to measure DC and AC currents with the highest accuracy and precision, providing readings in different digital formats. The CT-BOX system is developed for use with the 0-FLUCS current-output DCCTs, allowing measurements of currents up to kA.

The system integrates a burden resistor and conditioning network feeding a 24-bit temperature-stabilized ADC for <1 ppm/K temperature dependence. The digital section interfaced to the ADC performs a calibrated measurement to eliminate non-ideal behavior, providing 0.005 % full-scale current value accuracy (optional). The ADC sampling frequency can be configured up to 100 kHz, allowing acquisition of high-frequency components and fast current transients.

Current readings can be triggered by an external LVTTL or TTL signal, by a remote command sent to the digital interface, or internally (setting sampling period and acquisition window). Time-stamp, current readings and external temperature values are stored in a microSD Flash memory for long-term acquisitions. The microSD memory can be read via Ethernet, USB or RS-232, or removed and transferred to other devices.

A temperature probe can be plugged on the back of the system to read and store external temperature values. A local display shows current readings and other settings (e.g., IP address, mode of operation). A configurable alarm output can signal when a pre-set current threshold is exceeded. An integrated function compensates for measurement setup offset currents. The unit integrates a low-noise mixed AC/DC power supply for direct AC mains connection. The compact 1U-9" design allows benchmark use or 1U-19" rack installation.

### Features

- Digital interfaces: Ethernet, USB, RS-232
- <1 ppm/K temperature coefficient
- <0.005 % full-scale accuracy (with high-accuracy calibration option)
- Configurable recorder on microSD-Flash
- Trigger input/output and alarm output
- External temperature sensors
- Analog monitor
- Local display for current readings
- Desktop or rack mounting in 1U
- Integrated fanless AC/DC power supply
- Dedicated CT-Viewer software application

### Applications

- Test & measurement setups
- Sensing element in calibration systems
- Power supplies
- Biomedical devices

### Technical specifications

- AC line input: 90-260 VAC, 46-440 Hz
- Maximum power consumption: 25 W
- Current accuracy: <0.01 % standard, <0.005 % with high-accuracy option
- Current resolution: 24 bit
- Sampling frequency: 0.1 Hz – 100 kHz
- Thermal coefficient (typ.): <1 ppm/K
- Current ranges available: 100, 150, 200, 300, 400, 600, 1000 A
- Current readings: 7½ digits
- Linearity: <25 ppm/FS
- Long-term stability: <10 ppm/FS
- Noise: <1 ppm (up to 10 Hz readout), <5 ppm (up to 10 kHz readout)
- Offset: <1 ppm/FS (with Zero Offset function)
- Temperature probe resolution: 0.1 °C
- Temperature probe accuracy: ±0.5 °C
- Temperature accuracy: 0.05 %
- Digital interfaces: Ethernet 10/100 Mbps TCP-IP, USB 2.0, RS-232
- Analog monitor: ±10 V (LEMO connector)
- Trigger inputs: digital interface (soft-trigger), TTL 5 V – LVTTL compatible
- Alarm output: TTL 5 V, solid-state relay
- Mechanical dimensions (L × W × H): 180 × 220 × 41 mm
- Operating temperature: 0...40 °C

### Ordering codes

| Ordering Code | Acronym     | Description                                                                        |
| ------------- | ----------- | ---------------------------------------------------------------------------------- |
| WCTBOX100XAA  | CT-BOX-100  | 100 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232  |
| WCTBOX150XAA  | CT-BOX-150  | 150 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232  |
| WCTBOX200XAA  | CT-BOX-200  | 200 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232  |
| WCTBOX300XAA  | CT-BOX-300  | 300 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232  |
| WCTBOX400XAA  | CT-BOX-400  | 400 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232  |
| WCTBOX600XAA  | CT-BOX-600  | 600 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232  |
| WCTBOX1000XA  | CT-BOX-1000 | 1000 A Current Transducer Digital Box with Local Display and Ethernet, USB, RS-232 |
| WCTBOXMBXAAA  | CT-BOX-MB   | CT-BOX mounting brackets for 1U – 19" cabinet installation                         |
| WCTBOX1YXAAA  | CT-BOX-YC   | CT-BOX In-House Yearly Calibration Service (<0.01 % accuracy)                      |
| WCTBOXSICLXA  | CT-BOX-HAC  | CT-BOX High-Accuracy Calibration Service (<0.005 % accuracy)                       |

---

## CT-PCB Series (CT-13 / CT-26 / CT-52) — Compact PCB-Mount DC Current Transducers

The 0-FLUCS family of current transducers is based on closed-loop technology that allows accurate and precise monitoring of DC and AC currents with high bandwidth. The metal casing guarantees higher noise immunity and reduces undesired noise pick-up from external sources.

The CT-13, CT-26 and CT-52 are PCB-mount devices rated at maximum currents of 13 A, 26 A and 52 A with primary-to-secondary ratios of 1:250, 1:500 and 1:1000 respectively. Galvanic isolation between primary and secondary circuits allows measuring currents at different potential and simplifies interfacing when using the 0-FLUCS as feedback element of current-regulated power supplies.

Output can be chosen between standard secondary current output or buffered voltage output (low-TC shunt resistor and low-noise amplifier embedded in the CT-13V, CT-26V and CT-52V).

The compact mechanical dimensions and limited weight allow easy mounting on printed circuit boards with through-hole topology. A plastic cover is placed on the bottom side for easier mounting.

### Features

- Monitoring of DC and AC currents
- Excellent linearity
- Closed-loop detection
- Galvanically isolated from primary
- Low temperature drift
- Current-output or voltage-output versions
- Wide bandwidth
- High accuracy
- UL 94 V-0 flammability grade
- LED indicates correct operation
- PCB-mount versions

### Applications

- Power supplies
- Sensing element in calibration systems
- Biomedical devices
- Test & measurement setups

### Technical specifications

| Parameter                                     | CT-13   | CT-26   | CT-52   |
| --------------------------------------------- | ------- | ------- | ------- |
| Current Transform Ratio (N)                   | 1:250   | 1:500   | 1:1000  |
| Maximum DC Primary Current (Ip,DC)            | ±13 A   | ±26 A   | ±52 A   |
| Maximum RMS Primary Current (Ip,RMS)          | 9.2 A   | 18.4 A  | 36.8 A  |
| Maximum DC Secondary Current (Is,DC)          | ±52 mA  | ±52 mA  | ±52 mA  |
| Maximum RMS Secondary Current (Is,RMS)        | 37 mA   | 37 mA   | 37 mA   |
| Output Voltage Ratio "V" version (Vout/Ip,DC) | 0.8 V/A | 0.4 V/A | 0.2 V/A |

Common specifications:

- Current polarity: bipolar
- Small signal bandwidth (typ.): 500 kHz
- Small signal bandwidth — "V"-version (typ.): >200 kHz
- Noise (RMS, typ.): <1 ppm @ 200 Hz, <10 ppm @ 50 kHz
- Output voltage ("V"-version): ±10 V
- Maximum output current ("V"-version): ±15 mA
- External shunt resistor (current output only): 0...40 Ω
- Temperature coefficient (typ.): <0.5 ppm/K, <2 ppm/K ("V"-version)
- Protection signal: yes – OK status
- Supply voltage (±6 %): ±15 V
- Connections: 16-pin through-hole PCB mounting
- Mechanical (outer) dimensions: 66 × 68 × 48 mm
- Primary conductor: internal
- Maximum weight: 300 g

### Ordering codes

| Ordering Code | Acronym | Description                                                |
| ------------- | ------- | ---------------------------------------------------------- |
| WCT13XAAAAAA  | CT-13   | 13 A Primary Current 0-FLUCS, PCB-Mounting                 |
| WCT26XAAAAAA  | CT-26   | 26 A Primary Current 0-FLUCS, PCB-Mounting                 |
| WCT52XAAAAAA  | CT-52   | 52 A Primary Current 0-FLUCS, PCB-Mounting                 |
| WCT13VXAAAAA  | CT-13V  | 13 A Primary Current 0-FLUCS, PCB-Mounting, Voltage-Output |
| WCT26VXAAAAA  | CT-26V  | 26 A Primary Current 0-FLUCS, PCB-Mounting, Voltage-Output |
| WCT52VXAAAAA  | CT-52V  | 52 A Primary Current 0-FLUCS, PCB-Mounting, Voltage-Output |

---

## CT-100 / CT-150 — DC Current Transducers (Standalone)

The CT-100/CT-150 transducers are rated at maximum bipolar primary current of 100 A/150 A with transformation ratio of 1:1000/1:1500. Galvanic isolation between primary and secondary circuits allows measuring currents at different potential and simplifies interfacing as feedback element of current-regulated power supplies.

Output can be chosen between secondary current output or buffered voltage output (low-TC shunt resistor and low-noise amplifier embedded). Connection type can be chosen between "C" option (DB-9 male connector) and "P" option (7-pin through-hole for PCB mounting).

### Features

- Monitoring of DC and AC currents
- Excellent linearity and closed-loop detection
- Galvanically isolated from primary
- Low temperature drift, wide bandwidth, high accuracy
- Current-output or voltage-output versions
- UL 94 V-0 flammability grade, LED indicates correct operation
- DB-9 connector or PCB-mount versions

### Applications

Power supplies, sensing element in calibration systems, biomedical devices, NMR (Nuclear Magnetic Resonance), test & measurement setups.

### Technical specifications

| Parameter                              | CT-100                               | CT-150                               |
| -------------------------------------- | ------------------------------------ | ------------------------------------ |
| Current Transform Ratio (N)            | 1:1000                               | 1:1500                               |
| Maximum DC Primary Current (Ip,DC)     | ±100 A                               | ±150 A                               |
| Maximum RMS Primary Current (Ip,RMS)   | 71 A                                 | 106 A                                |
| Maximum DC Secondary Current (Is,DC)   | ±100 mA                              | ±100 mA                              |
| Maximum RMS Secondary Current (Is,RMS) | 71 mA                                | 71 mA                                |
| Output Voltage Ratio "V" version       | 0.1 V/A                              | (1/15) V/A                           |
| Noise (RMS, typ.) — RNG                | <0.5 ppm (@200 Hz), <5 ppm (@50 kHz) | <1.5 ppm (@200 Hz), <8 ppm (@50 kHz) |

Common specifications:

- Current polarity: bipolar
- Small signal bandwidth (±3 dB): >500 kHz, >200 kHz ("V"-version)
- External shunt resistor (current output only): 0...40 Ω
- Output voltage ("V"-version): ±10 V
- Maximum output current ("V"-version): ±15 mA
- Temperature coefficient (typ.): <0.5 ppm/K, <2 ppm/K ("V"-version)
- Linearity: <3 ppm, <15 ppm ("V"-version)
- Induction into primary (typ.): 35 µV (RMS)
- Protection signal: yes — primary over-current
- Supply voltage (±6 %): ±15 V
- Connections: DB-9 connector ("C") or 7-pin type ("P")
- Mechanical (outer) dimensions: 45 × 57 × 75 mm
- Primary conductor hole diameter: 16 mm
- Operating temperature range: 0...+50 °C
- Maximum weight: 250 g

### Ordering codes

| Ordering Code | Acronym   | Description                                                           |
| ------------- | --------- | --------------------------------------------------------------------- |
| WCT100CXAAAA  | CT-100-C  | 100 A Primary Current 0-FLUCS, DB-9 connector                         |
| WCT100PXAAAA  | CT-100-P  | 100 A Primary Current 0-FLUCS, 7-pin type connections                 |
| WCT100VCXAAA  | CT-100V-C | 100 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output         |
| WCT100VPXAAA  | CT-100V-P | 100 A Primary Current 0-FLUCS, 7-pin type connections, Voltage-Output |
| WCT150CXAAAA  | CT-150-C  | 150 A Primary Current 0-FLUCS, DB-9 connector                         |
| WCT150PXAAAA  | CT-150-P  | 150 A Primary Current 0-FLUCS, 7-pin type connections                 |
| WCT150VCXAAA  | CT-150V-C | 150 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output         |
| WCT150VPXAAA  | CT-150V-P | 150 A Primary Current 0-FLUCS, 7-pin type connections, Voltage-Output |

---

## CT-200 / CT-300 / CT-400 — DC Current Transducers (Standalone)

The CT-200/CT-300/CT-400 transducers are rated at maximum bipolar primary current of 200 A/300 A/400 A with transform ratios of 1:1000, 1:1500 and 1:2000 respectively. A standard DB-9 connector is used for transducer connections.

### Features

- Monitoring of DC and AC currents
- Excellent linearity and closed-loop detection
- Galvanically isolated from primary
- Low temperature drift, wide bandwidth, high accuracy
- Current-output or voltage-output versions
- UL 94 V-0 flammability grade, LED indicates correct operation
- DB-9 connector for rack/panel mounting

### Applications

Power supplies, sensing element in calibration systems, biomedical devices, NMR, test & measurement setups.

### Technical specifications

| Parameter                              | CT-200                               | CT-300                               | CT-400                             |
| -------------------------------------- | ------------------------------------ | ------------------------------------ | ---------------------------------- |
| Current Transform Ratio (N)            | 1:1000                               | 1:1500                               | 1:2000                             |
| Maximum DC Primary Current (Ip,DC)     | ±200 A                               | ±300 A                               | ±400 A                             |
| Maximum RMS Primary Current (Ip,RMS)   | 141 A                                | 212 A                                | 283 A                              |
| Maximum DC Secondary Current (Is,DC)   | ±200 mA                              | ±200 mA                              | ±200 mA                            |
| Maximum RMS Secondary Current (Is,RMS) | 141 mA                               | 141 mA                               | 141 mA                             |
| External Shunt Resistor (Rs)           | 0...40 Ω                             | 0...30 Ω                             | 0...20 Ω                           |
| Small Signal BW – "V"-version          | 100 kHz                              | 150 kHz                              | 150 kHz                            |
| Noise (RMS, typ.)                      | <1.5 ppm (@200 Hz), <6 ppm (@50 kHz) | <1.8 ppm (@200 Hz), <7 ppm (@50 kHz) | <2 ppm (@200 Hz), <8 ppm (@50 kHz) |
| Output Voltage Ratio "V" version       | 0.05 V/A                             | (1/30) V/A                           | 0.025 V/A                          |
| Induction into Primary (typ.)          | 20 µV (RMS)                          | 25 µV (RMS)                          | 30 µV (RMS)                        |

Common specifications:

- Current polarity: bipolar
- Small signal bandwidth (typ.): >200 kHz
- Output voltage ("V"-version): ±10 V
- Maximum output current ("V"-version): ±15 mA
- Temperature coefficient (typ.): <0.5 ppm/K, <2 ppm/K ("V"-version)
- Linearity: <3 ppm, <15 ppm ("V"-version)
- Offset (with factory trimming): <10 ppm/FS
- Protection signal: yes — primary over-current
- Supply voltage (±6 %): ±15 V
- Maximum current consumption: 50 mA + Is
- Connections: DB-9 connector
- Mechanical (outer) dimensions: 94 × 91 × 50 mm
- Primary conductor hole diameter: 30 mm
- Maximum weight: 380 g

### Ordering codes

| Ordering Code | Acronym | Description                                                   |
| ------------- | ------- | ------------------------------------------------------------- |
| WCT200XAAAAA  | CT-200  | 200 A Primary Current 0-FLUCS, DB-9 connector                 |
| WCT200VXAAAA  | CT-200V | 200 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output |
| WCT300XAAAAA  | CT-300  | 300 A Primary Current 0-FLUCS, DB-9 connector                 |
| WCT300VXAAAA  | CT-300V | 300 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output |
| WCT400XAAAAA  | CT-400  | 400 A Primary Current 0-FLUCS, DB-9 connector                 |
| WCT400VXAAAA  | CT-400V | 400 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output |

Note: Different output voltage ratings (e.g., ±2.5 V or ±5 V) available upon request for minimum quantities.

---

## CT-600 / CT-1000 — DC Current Transducers (Standalone)

The CT-600 and CT-1000 transducers are rated at maximum bipolar primary current of 600 A and 1000 A with transform ratios of 1:1500 and 1:2000.

### Features

Same as CT-200/CT-300/CT-400 family.

### Applications

Power supplies and inverters in industrial, power generation and automotive fields; calibration; acceptance testing; quality control.

### Technical specifications

| Parameter                              | CT-600                               | CT-1000                               |
| -------------------------------------- | ------------------------------------ | ------------------------------------- |
| Current Transform Ratio (N)            | 1:1500                               | 1:2000                                |
| Maximum DC Primary Current (Ip,DC)     | ±600 A                               | ±1000 A                               |
| Maximum RMS Primary Current (Ip,RMS)   | 424 A                                | 707 A                                 |
| Maximum DC Secondary Current (Is,DC)   | ±400 mA                              | ±500 mA                               |
| Maximum RMS Secondary Current (Is,RMS) | 283 mA                               | 354 mA                                |
| External Shunt Resistor (Rs)           | 0...5 Ω                              | 0...2 Ω                               |
| Noise (RMS, typ.)                      | <1.5 ppm (@200 Hz), <7 ppm (@50 kHz) | <1.5 ppm (@200 Hz), <10 ppm (@50 kHz) |
| Output Voltage Ratio "V" version       | (1/60) V/A                           | 0.01 V/A                              |
| Maximum Weight                         | 450 g                                | 600 g                                 |

Common specifications:

- Current polarity: bipolar
- Small signal bandwidth (-1 dB, typ.): >150 kHz
- Output voltage ("V"-version): ±10 V
- Maximum output current ("V"-version): ±15 mA
- Temperature coefficient (typ.): <0.5 ppm/K, <2 ppm/K ("V"-version)
- Induction into primary (typ.): <25 µV (RMS)
- Linearity: <3 ppm, <15 ppm ("V"-version)
- Offset (with factory trimming): <10 ppm/FS
- Protection signal: yes — primary over-current
- Supply voltage (±6 %): ±15 V
- Maximum current consumption: 50 mA + Is
- Connections: DB-9 connector
- Mechanical (outer) dimensions: 107 × 91 × 50 mm
- Primary conductor hole diameter: 30 mm

### Ordering codes

| Ordering Code | Acronym  | Description                                                    |
| ------------- | -------- | -------------------------------------------------------------- |
| WCT600XAAAAA  | CT-600   | 600 A Primary Current 0-FLUCS, DB-9 connector                  |
| WCT600VXAAAA  | CT-600V  | 600 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output  |
| WCT1000XAAAA  | CT-1000  | 1000 A Primary Current 0-FLUCS, DB-9 connector                 |
| WCT1000VXAAA  | CT-1000V | 1000 A Primary Current 0-FLUCS, DB-9 connector, Voltage-Output |

---

## CT-2000 / CT-3000 — High-Current DC Current Transducers (Standalone)

The CT-2000 and CT-3000 transducers are rated at maximum bipolar primary current of 2000 A and 3000 A with a transform ratio of 1:2000. A standard DB-9 connector is used for transducer connections; a standard BNC connector is used for the voltage output. Status: PRELIMINARY (Rev. 0.2 - November 2025).

Main application fields are precise and extremely stable regulated power supplies, power inverters and EV battery testing.

### Features

- Monitoring of DC and AC currents
- Excellent linearity and closed-loop detection
- Galvanically isolated from primary
- Low temperature drift, wide bandwidth, high accuracy
- Current-output or voltage-output versions
- UL 94 V-0 flammability grade, LED indicates correct operation
- DB-9 connector or PCB-mount versions
- TEDS (IEEE 1451.4) interface
- BNC voltage output

### Applications

Power supplies, sensing element in calibration systems, biomedical devices, NMR, test & measurement setups, EV battery testing.

### Technical specifications

| Parameter                              | CT-2000                               | CT-3000                             |
| -------------------------------------- | ------------------------------------- | ----------------------------------- |
| Current Transform Ratio (N)            | 1:2000                                | 1:2000                              |
| Maximum DC Primary Current (Ip,DC)     | ±2000 A                               | ±3000 A                             |
| Maximum RMS Primary Current (Ip,RMS)   | 1414 A                                | 2121 A                              |
| Maximum DC Secondary Current (Is,DC)   | ±1.0 A                                | ±1.5 A                              |
| Maximum RMS Secondary Current (Is,RMS) | 707 mA                                | 1.06 A                              |
| External Shunt Resistor (Rs)           | 0...10 Ω                              | 0...5 Ω                             |
| Noise (RMS, typ.)                      | <2.5 ppm (@200 Hz), <15 ppm (@50 kHz) | <2 ppm (@200 Hz), <10 ppm (@50 kHz) |
| Output Voltage Ratio "V" version       | 5 mV/A                                | (1/300) V/A                         |

Common specifications:

- Current polarity: bipolar
- Small signal bandwidth (typ.): 100 kHz
- Small signal bandwidth — "V"-version (typ.): 100 kHz
- Output voltage ("V"-version): ±10 V
- Maximum output current ("V"-version): ±15 mA
- Temperature coefficient (typ.): <0.5 ppm/K, <3 ppm/K ("V"-version)
- Linearity: <3 ppm/FS, <15 ppm/FS ("V"-version)
- Induction into primary (typ.): <90 µV (RMS)
- Offset (with factory trimming): <10 ppm/FS
- Protection signal: yes — primary over-current
- Supply voltage (±6 %): +24 V
- Maximum current consumption: 200 mA + Is
- Connections: DB-9 connector, BNC connector
- Mechanical (outer) dimensions: 236 × 215 × 98 mm
- Primary conductor hole diameter: 67 mm
- Maximum weight: 5 kg

### Ordering codes

| Ordering Code | Acronym  | Description                                                                   |
| ------------- | -------- | ----------------------------------------------------------------------------- |
| WCT2000XAAAA  | CT-2000  | 2000 A Primary Current 0-FLUCS, DB-9 connector                                |
| WCT2000VXAAA  | CT-2000V | 2000 A Primary Current 0-FLUCS, DB-9 connector, Voltage Output, BNC connector |
| WCT3000XAAAA  | CT-3000  | 3000 A Primary Current 0-FLUCS, DB-9 connector                                |
| WCT3000VXAAA  | CT-3000V | 3000 A Primary Current 0-FLUCS, DB-9 connector, Voltage Output, BNC connector |

---

# Beamline Electronics Instrumentation

ELS Instruments produces a complete family of picoammeters and beam stabilization systems for photon Beam Position Monitor (BPM) applications, ion chambers, diamond detectors, ultra-low current measurements and radiation monitoring. The family includes:

- **TetrAMM** — 4-channel fast-interface bipolar picoammeter with integrated HV
- **AH401D** — 4-channel monopolar charge-integration picoammeter/electrometer
- **AH501D** — 4-channel bipolar picoammeter with analog monitors and bias voltage
- **BEST** — Beam stabilization system (datasheet not yet finalized)

These instruments share key characteristics: BNC current inputs, Ethernet connectivity, simultaneous channel sampling, compact lightweight enclosure for installation close to the detector to minimize cable length and noise pick-up, free oscilloscope software, ASCII or RAW binary data formats for fast data transmission.

---

## TetrAMM — 4-Channel Fast-Interface Bipolar Picoammeter with Integrated HV Source

The TetrAMM ("Tetra AMMeter") is a 4-channel picoammeter designed for quad-monitoring applications such as photon Beam Position Monitors. It expands the ELS Instruments picoammeter family.

The device is composed of a carrier board and two plug-ins: the Front-End board and the High Voltage source. The Front-End board performs analog signal conditioning and digital data conversion: input currents range from ±120 µA to ±120 nA full-scale in standard configuration and are simultaneously converted with 24-bit resolution at maximum 100 kHz frequency.

The HV plugin board is rated at standard +500 V or -500 V @ 1 mA output but can be configured in rating and polarity (up to 4 kV). This source, on an SHV connector, is suited to bias detector systems.

The TetrAMM is housed in a light, extremely compact box that can be placed close to the detector to reduce cable length and limit noise pick-up. Low noise, high stability and excellent linearity enable very high precision current measurements. A 10/100/1000 Mbit Ethernet connection allows fast data transmission and easy instrument control.

The TetrAMM has different TRIGGER and GATE signals on a LEMO coaxial connector; additional passive interlock contacts are present on the 10-pin I/O connector on the rear panel. An SFP link is present for integration into a closed-system. Internal firmware can be remotely updated. The TetrAMM is ready to be integrated into the BEST stabilization system.

### Features

- 4-channel simultaneous sampling
- Up to 100 kHz sampling frequency
- 24-bit ADC conversion
- Bipolar current ranges from ±120 nA to ±120 µA — different ranges available
- 10/100/1000 Ethernet connectivity
- Low-noise integrated HV source
- Firmware remote update
- External trigger/gate and interlock
- Auto-ranging functionality
- On-board FPGA and soft-processor computations
- SFP link
- Compact mechanical dimensions
- Oscilloscope software available
- Ready to be integrated into the BEST stabilization system

### Applications

- Beam position monitoring
- Ion chambers readout
- Ultra-low current measurements
- Diamond detector readout
- Radiation monitoring

### Technical specifications

- Input channels: 4
- Current polarity: bipolar
- Current measuring range: RNG0 ±120 µA, RNG1 ±120 nA
- Current resolution: RNG0 15 pA, RNG1 15 fA
- Analog bandwidth: 5 kHz
- Data rate: up to 100 ksamples/s
- Equivalent input noise (@1 ksps): RNG0 1 ppm/FS, RNG1 6 ppm/FS
- Equivalent input noise (@100 ksps): RNG0 6 ppm/FS, RNG1 25 ppm/FS
- Communication interface: Ethernet 10/100/1000 TCP-IP or UDP, SFP
- Temperature coefficient: RNG0 <0.001 %/FS/K, RNG1 <0.002 %/FS/K
- I/O signals: configurable trigger/gate input, trigger output, external interlock output
- Additional features: auto-ranging, firmware remote upgrade, configurable sampling frequency, HV output current/voltage readback, HV overcurrent protection
- Protections: external interlock, internal over-temperature, HV over-current
- HV output: 500 V @ 1 mA standard, configurable up to 4 kV with different ordering options
- Connectors: BNC (current inputs), SHV (HV output)
- Weight: 850 g
- Supply voltage: +12 V
- Status indicators: 5 LEDs

### Ordering codes

| Ordering Code | Range            | HV     | BW      | Description                                                        |
| ------------- | ---------------- | ------ | ------- | ------------------------------------------------------------------ |
| WTETRAMMNOHV  | ±120 µA, ±120 nA | n.a.   | 5 kHz   | 4-channel Fast Interface Bipolar Picoammeter without Integrated HV |
| WTETRAMM05PX  | ±120 µA, ±120 nA | +500 V | 5 kHz   | with Integrated +500 V HV Source                                   |
| WTETRAMM05NX  | ±120 µA, ±120 nA | -500 V | 5 kHz   | with Integrated -500 V HV Source                                   |
| WTETRAMM20PX  | ±120 µA, ±120 nA | +2 kV  | 5 kHz   | with Integrated +2 kV HV Source                                    |
| WTETRAMM20NX  | ±120 µA, ±120 nA | -2 kV  | 5 kHz   | with Integrated -2 kV HV Source                                    |
| WTETRAMM40PX  | ±120 µA, ±120 nA | +4 kV  | 5 kHz   | with Integrated +4 kV HV Source                                    |
| WTETRAMM40NX  | ±120 µA, ±120 nA | -4 kV  | 5 kHz   | with Integrated -4 kV HV Source                                    |
| WTETRAMMC001  | ±1.2 µA, ±1.2 nA | -500 V | 100 kHz | Custom range with Integrated -500 V HV                             |
| WTETRAMMC002  | ±1.2 mA, ±1.2 µA | +500 V | 5 kHz   | Custom range with Integrated +500 V HV                             |
| WTETRAMMC003  | ±25 µA, ±250 nA  | n.a.   | 5 kHz   | Custom range without Integrated HV                                 |
| WTETRAMMC004  | ±120 µA, ±120 nA | +500 V | 20 kHz  | Custom BW with Integrated +500 V HV                                |
| WTETRAMMC005  | ±10 µA, ±125 nA  | -500 V | 5 kHz   | Custom range with Integrated -500 V HV                             |
| WTETRAMMC006  | ±10 µA, ±2 µA    | n.a.   | 5 kHz   | Custom range without Integrated HV                                 |

---

## AH401D — 4-Channel Monopolar Charge-Integration Picoammeter/Electrometer

The AH401D is a compact 4-channel low-noise picoammeter composed of an extremely sensitive charge-integration input stage for low-current sensing combined with a 20-bit sigma-delta AD converter with integrated noise reduction digital filter.

This device is suited for very low current measurements with 8 selectable input ranges spanning from 50 pA (50 aA resolution) up to 2 µA (2 pA resolution). Integration time is user-selectable from 1 ms to 1 s. Each input channel has two integrator stages so current-to-voltage conversion can be performed continuously during ADC conversion, avoiding any dead time in the data output.

Simultaneous sampling of the 4 independent channels makes this instrument ideal for beam position monitor applications or multichannel acquisition. The AH401D is housed in a light and extremely compact box that can be placed close to the signal sources. Low temperature drift, good linearity and very low noise allow very high-precision current measurements.

The picoammeter can be remotely controlled via standard Ethernet 10/100 communication interface: integration time, range, data format, type of acquisition and many other parameters can be easily set and monitored. The AH401D has an external TRIGGER input signal to synchronize acquisition with external events (e.g., laser triggering). Digital samples can be transferred either using ASCII format or RAW binary for fast data transmission. The low-noise 9-V power supply is included in the package.

### Features

- From 50 pA to 2 µA full-scale current range
- Up to 1 kHz sampling frequency
- 20-bit ADC conversion with noise reduction digital filter
- Less than 7 ppm full-scale range noise @ 200 pC
- 4-channel simultaneous sampling
- Ethernet 10/100 Mbit/s connectivity
- Trigger input
- Lightweight and compact design
- Oscilloscope software available

### Applications

- Beam position monitoring
- Ion chambers readout
- Ultra-low current measurements
- Diamond detector readout
- Radiation monitoring

### Technical specifications

- Input channels: 4
- Current measuring range: 8 ranges from 50 pA to 2 µA
- Current polarity: positive (-0.4 % negative is allowed)
- Data rate: up to 1 ksample/s
- Integration time: from 1 ms to 1 s
- Resolution: 20 bit
- Noise (@1 ms, 200 pC): 7 ppm/FS
- Communication interface: Ethernet 10/100 TCP-IP or UDP
- I/O signals: TRIGGER input, CONV output
- Supply voltage: 9 V
- Dimensions: 155 × 165 × 42 mm
- Weight: 500 g
- Input connectors: BNC
- Status indicators: 1 LED

---

## AH501D — 4-Channel Bipolar Picoammeter with Analog Monitors and Bias Voltage

The AH501D is a 4-channel low-noise and fast-sampling-rate bipolar picoammeter with integrated bias voltage source and voltage analog monitors. It is composed of a transimpedance input stage for current sensing combined with a buffered output voltage circuit allowing input current monitoring with a simple oscilloscope or tester.

This device performs bipolar current measurements from ±2.5 nA (300 aA resolution) up to ±2.5 mA (300 pA resolution) with minimum sampling period of 38.4 µs (equivalent to 26 kHz, for 1 channel and 16-bit resolution). Simultaneous sampling of the 4 independent channels makes this instrument ideal for beam position monitoring or multichannel acquisition.

The presence of an internal low-noise (0.003 % of full scale) voltage source from 0 to 30 V is extremely useful when using blade gap-monitors or diamond detectors needing a bias potential to increase signal intensity and signal-to-noise ratio. This built-in bias voltage source signal is available on a BNC connector and can also be set to a high-impedance state.

The AH501D is housed in a light, extremely compact box that can be placed close to the signal sources. Low temperature drifts, good linearity and very low noise enable very high-precision current measurements. The picoammeter has Ethernet 10/100 communication interface (TCP-IP and UDP). An external TRIGGER/GATE input signal on a coaxial LEMO connector synchronizes acquisition with external events. Digital samples can be transferred using ASCII or RAW binary format.

### Features

- From ±2.5 nA to ±2.5 mA full-scale current range
- Up to 26 kHz sampling frequency
- 24-bit ADC conversion
- Analog voltage monitors
- Integrated low-noise bias voltage source (up to 30 V)
- Less than 150 fA RMS noise
- 4-channel simultaneous sampling
- Ethernet 10/100 Mbit/s connectivity
- Trigger input
- Oscilloscope software available

### Applications

- Beam position monitoring
- Ion chambers readout
- Ultra-low current measurements
- Diamond detector readout
- Radiation monitoring

### Technical specifications

- Input channels: 4
- Current measuring range: from ±2.5 nA to ±2.5 mA
- Voltage monitors: yes (±5 V)
- Current polarity: bipolar
- Data rate: up to 26 ksamples/s
- Resolution: 16- or 24-bit
- Noise (@RNG2, CIN = 5 pF, maximum): 150 fA RMS
- Communication interface: Ethernet 10/100 TCP-IP or UDP
- I/O signals: TRIGGER/GATE input, CONV output
- Supply voltage: from ±6 V to ±15 V
- Bias voltage output: 0 to 30 V
- Bias voltage RMS noise: 0.003 %
- Dimensions: 155 × 165 × 42 mm
- Weight: 500 g
- Input connectors: BNC
- Voltage monitor connectors: LEMO
- Status indicators: 5 LEDs

---

## BEST — Beam Stabilization System

The BEST is a beam stabilization system for photon beamlines, designed to integrate with ELS Instruments picoammeters (such as the TetrAMM) to deliver closed-loop position stabilization on photon Beam Position Monitors. Used in synchrotron and accelerator beamline applications requiring sub-micron stability of the photon beam.

*Note: Detailed technical specifications and ordering codes for BEST are not currently included in this document. Please refer to https://www.els-instruments.com/product/best/ for the latest information.*

---

# FMC and MicroTCA

ELS Instruments produces a comprehensive line of MicroTCA.4 and FMC products for high-end industrial and research applications:

- **AMC carrier boards**: DAMC-FMC2ZUP, DAMC-FMC25, DAMC-FMC20
- **AMC modules**: AMC-PICO-8, AMC-PICO-8-US+, HV-PANDA
- **FMC mezzanine cards**: FMC-PICO-1M4, FMC-2SFP+, FMC-4SFP+

### About FMC and MicroTCA

**FMC (FPGA Mezzanine Card)** is an ANSI/VITA standard that defines I/O mezzanine modules with connection to an FPGA or other device with re-configurable I/O capability. It specifies a low-profile connector and compact board size for compatibility with several industry-standard slot card, blade, low-profile motherboard and mezzanine form factors.

**MicroTCA (μTCA)** is an environment originated from the development of telecommunications hardware architectures. It is a standard describing a new class of modular computer systems that is more energy-efficient, compact and economical than ATCA (Advanced TCA). MicroTCA was developed exploiting many of the advantages of ATCA/AMC and was designed with maximum re-usability, so that many AMC boards originally developed for ATCA can also be used in MicroTCA systems. The system uses serial high-speed connections (e.g., PCIe protocol, Gigabit Ethernet), system monitoring and efficient cooling as well as redundancy concepts, representing the highest-performance solution for applications in telecommunication, industry, medical and military technology.

Several ELS Instruments FMC/MicroTCA products are designed and licensed by **DESY** (Deutsches Elektronen-Synchrotron, Helmholtz-Gemeinschaft).

---

## DAMC-FMC2ZUP — MTCA.4 Zynq UltraScale+ FMC/FMC+ Carrier (Recommended for new designs)

The DAMC-FMC2ZUP is a recommended-for-new-designs MTCA.4 carrier board based on Xilinx UltraScale+ MPSoC. The board has two FMC sockets: 24 transceivers are routed to the FMC+ socket and can be operated up to 28.21 Gbps. The other socket has a standard HPC connector with 8 transceivers connected, capable of operating up to 16.375 Gbps. All HA and LA lines are connected on both FMC slots.

The board provides a front-panel connector with Gigabit Ethernet interface (over an SFP+), clock input and two trigger in/out signals. The front-panel Gigabit Ethernet connection can also be used as a White Rabbit endpoint. A flexible clocking system with a 16-channel bi-directional cross-point switch allows receiving all clocks from and driving all clocks to the backplane (TCLKA, TLCKB, TCLKC, TCLKD) and to/from the FMCs (bi-directional clocks).

The RTM interface is designed according to class D1.1 and carries full 42 LVDS lines and 2 MGT links. The board supports all existing digital RTMs from DESY, such as DRTM-AD84, DRTM-VM2, DRTM-PZT4.

The ARM Cortex-A53 processor in the MPSoC can run GNU/Linux from a MicroSD card on the front panel or from an embedded 8 GB eMMC. The Processing System has a USB Type-C interface at the front panel that supports alternate mode, allowing connection to a Display while providing a USB 3.0 interface — enabling standalone systems without separate CPU modules. Two transceivers from PS are connected to AMC port 2 and 3, allowing attachment of up to two standard off-the-shelf MicroTCA SATA cards with hard drives or SSDs.

Supported by all modern Xilinx development tools (Vivado, HLS, Yocto, PetaLinux, SDSoC, SDAccel), the DAMC-FMC2ZUP addresses ever-growing processing power needs while reducing development time. The combination of large FPGA and powerful CPU provides extreme flexibility for a general-purpose FMC carrier.

### Features

- FPGA Low-Power Xilinx UltraScale+ MPSoC XCZU11EG-L2FFVC1760E or XCZU19EG-L2FFVC1760E
- 653k Logic Cells and 2,928 DSP Slices (ZU11EG) / 1143k Logic Cells and 1,968 DSP Slices (ZU19EG)
- PCIe Gen.4 x8, 100G Ethernet MAC
- 1.5 GHz Quad-Core ARM Cortex-A53, MALI-400 GPU
- 16 GTY transceivers (28.21 Gbps) routed to FMC+ transceivers
- 32 GTH transceivers (16.375 Gbps / 12.5 Gbps low-power) routed to FMC HPC, backplane, front panel, Zone3
- 4 GTR transceivers (6.0 Gbps) routed to SATA links and USB Type-C connector
- 21.1 MB BlockRAM and 22.5 MB UltraRAM (ZU11EG) / 34.6 MB BlockRAM and 36 MB UltraRAM (ZU19EG)
- One FMC+ slot with 24 transceivers connected (16 GTY + 8 GTH) — all LA and HA pins connected
- One standard FMC HPC socket
- USB Type-C connector at front panel providing DisplayPort signals and USB 3.0 interface
- Zone3 Class D1.1 compliance with full interlock support
- 64-bit 4 GB DDR4 with 2400 MT/s connected to PS — accessible from PL via AXI Bridge
- 16-bit 1 GB DDR4 with 2400 MT/s connected to PL
- Flexible clocking with capability to receive and drive all MTCA backplane clocks and 3 PLLs
- White Rabbit support
- SD-Card slot accessible via front panel
- 8 GB eMMC memory connected to PS
- Full MLVDS and interlock receive/drive capability
- JTAG support from on-board connector or AMC backplane (JSM module)
- Full HPM update functionality

### Ordering codes

| Ordering Code | Acronym         | Description                                                    |
| ------------- | --------------- | -------------------------------------------------------------- |
| DAMCFMC2ZUP1  | DAMC-FMC2ZUP-11 | MTCA.4 Zynq UltraScale+ FMC+ Carrier with XCZU11EG-L2FFVC1760E |
| DAMCFMC2ZUP2  | DAMC-FMC2ZUP-19 | MTCA.4 Zynq UltraScale+ FMC+ Carrier with XCZU19EG-L2FFVC1760E |

---

## AMC-PICO-8 — 8-Channel 20-Bit Bipolar Picoammeter with MTCA.4 Rear I/O

The AMC-PICO-8 is an eight-channel double-width picoammeter AMC board in MTCA.4 format. The analog front-end allows measuring bipolar currents up to 1 mA in standard version with maximum sampling rate of 1 MSPS per channel.

The analog front-end is composed of a specially designed transimpedance input stage for current sensing combined with analog signal conditioning and filtering stages. The 20-bit resolution is obtained from independent simultaneous sampling and low-delay SAR (Successive Approximation Register) ADCs.

Each channel has two full-scale measuring ranges (up to ±1 mA and ±1 µA respectively in standard version) and the current source can be floating up to ±300 V respect to chassis ground. This floating capability is suitable for applications where the detector or current source needs to be biased.

The analog front-end is designed for low noise, low temperature dependence and very small unbalance between channels. Analog characteristics are further improved with calibration; calibration data are stored in on-board EEPROM and loaded in signal-processing logic on power-up.

The on-board Virtex-5 FPGA performs conversion from "raw" ADC values to single-precision floating-point numbers representing measured current in Ampere. The floating-point format is suitable for additional post-processing. Signal-processing logic can be configured to capture signals on certain trigger conditions; internal memory can also be programmed to store data before trigger conditions, providing valuable pre-trigger data.

Communication with the Virtex-5 FPGA is via PCI express bus. All system parameters (analog front-end range, sampling frequency) are configured by writing to appropriate registers from PCI express. The FPGA also embeds a Scatter-Gather DMA for transferring data to PCI express root port (e.g., CPU).

### Features

- Double-width AMC board, MTCA.4 standard
- High-resolution multi-channel current measurements
- 8 bipolar current-input channels
- Two independent full-scale ranges
- Up to 1 MSPS simultaneous and independent sampling
- 20-bit resolution
- Low conversion time delay
- Input channels floating up to ±300 V
- Data processing on Virtex-5 FPGA
- Board management on Spartan-6 FPGA
- uRTM D1.1 connectivity
- External clock input on front panel

### Applications

- Photon Beam Position Monitors
- Multi-channel fast current acquisition
- Detector readout
- Accelerator controls

### Technical specifications

| Parameter                | Standard | "C1"    | "C2"    | "C3"    |
| ------------------------ | -------- | ------- | ------- | ------- |
| RNG0                     | ±1 mA    | ±110 µA | ±10 mA  | ±1 mA   |
| RNG1                     | ±1 µA    | ±3 µA   | ±500 µA | ±100 µA |
| Analog Bandwidth (-3 dB) | 10 kHz   | 35 kHz  | 300 kHz | 30 kHz  |
| Rise Time (10-90 %)      | 35 µs    | 10 µs   | 1.2 µs  | 12 µs   |

Common specifications:

- Board size: double-width — mid-size
- Standard: MicroTCA.4 (AMC.0, AMC.1), Module Management IPMI Version 1.5, MMC V1.0
- Input channels: 8
- Input current polarity: bipolar
- Input channel potential: ±300 V respect to chassis ground (continuous)
- Sampling resolution: 20-bit
- Sampling rate: up to 1 MSPS
- Conversion time: 650 ns
- Trigger inputs: internal, AMC port #17, #18, #19, #20
- Compatibility: Zone3 Class D1.1, full AMC backplane support
- Input connectors: triaxial — LEMO 00.650 Series (EPL.00.650)
- Operating temperature: 0...50 °C

---

## AMC-PICO-8-US+ — 8-Channel 1-MSPS 20-Bit Bipolar Picoammeter Series Based on UltraScale+ MPSoC

The AMC-PICO-8-US+ is an eight-channel double-width picoammeter AMC board in MTCA.4 format, the next-generation evolution of the AMC-PICO-8 based on UltraScale+ MPSoC. The analog front-end allows measuring bipolar currents up to 1 mA in standard version with maximum sampling rate of 1 MSPS per channel.

Same input characteristics as the AMC-PICO-8 (8 channels, 20-bit, ±300 V floating, two ranges per channel) with embedded oscilloscope and embedded web-server functionality. Recommended for new designs requiring on-board signal processing and standalone monitoring.

### Features

Same as AMC-PICO-8, plus:

- Embedded oscilloscope
- Embedded web-server

### Applications

Same as AMC-PICO-8.

---

## HV-PANDA — High Voltage Positive And Negative Double-Width AMC

The HV-PANDA (High Voltage Positive And Negative Double-width AMC) is an AMC board designed as MTCA.4 carrier. The board houses four different High Voltage (HV) channels inherited from widespread and well-known CAEN VME Technology.

HV modules can be configured with different output ratings and polarity, ranging from 500 V to 6 kV and from 1.5 W to 7 W. HV channels have a floating return per pair of channels, rated up to ±20 V respect to Protective Earth (PE). Semiconductor detectors, gaseous detectors, vacuum photomultipliers, MCPs, silicon and germanium detectors, and drift chambers are typical fields of application.

Each HV channel has nominal voltage accuracy better than 0.05 % FS and ppm-level peak-to-peak output voltage ripple. Current and voltage limits can be changed real-time by the user, as well as channel behavior when the current limit threshold is exceeded (switch off, or continue to operate in current-source mode). Ramp speed can be configured with 1 V/s resolution from 1 V/s to 500 V/s. Output voltage and current digital readbacks are accessible with 0.01 % FS resolution.

Module communication is performed through FAT PIPE using PCIe x1 standard, providing interconnection between CPU unit and HV channels. The HV-PANDA also provides infrastructure for management of optional Rear Transition Module (RTM) board. Zone 3 connections are carried according to DESY guidelines for Digital uRTM — Class D1.1.

The HV-PANDA was developed in cooperation with DESY in the Helmholtz Validation Fund Project "MTCA.4 for Industry" (HVF-0016).

### Features

- Double-width AMC board, MTCA.4 carrier
- 4 High Voltage (HV) channels per board
- Output ratings up to 6 kV @ 1 mA
- Different output voltage ratings available
- Factory-selectable polarity
- Provides interconnections between CPU unit and HV channels
- Communication through FAT PIPE using PCIe x1 standard
- Provides infrastructure for management of Rear Transition Module (RTM) boards
- DDR3 on-board memory (up to 4 Gbit)
- Separate interlock for each channel and global one
- Stand-by voltage, ramping, current monitoring and current limit

### Applications

- Semiconductor detectors
- Gaseous detectors
- Vacuum photomultipliers
- Micro Channel Plates (MCP)
- Drift chambers

### Technical specifications

- Board size: full-size
- Number of HV channels: 4
- AMC board type: PICMG — AMC.0 R.2
- Output voltage ratings: 6 kV @ 6 W, 4 kV @ 7 W, 500 V @ 1.5 W
- Polarity: positive or negative (factory-selectable)
- RTM support: yes
- High-voltage return: floating (per pair of channels) ±20 V to PE
- Nominal voltage accuracy: <0.05 %
- Voltage/current readback accuracy: <0.05 %
- Voltage/current readback resolution: <0.01 %
- Output voltage ripple (@max Pout): up to 4 kV <3 ppm/FS, up to 6 kV <4 ppm/FS
- Ramp slew rate: from 1 to 500 V/s
- Ramp slew rate step size: 1 V/s
- Stand-by voltage set resolution: 1 % of FS
- Current limit value accuracy: <4 % of FS
- Output current threshold behaviour: switch-off, current-source mode
- Output voltage connectors: SHV-type

---

## FMC-PICO-1M4 — 4-Channel 20-Bit 1-MSPS FMC Bipolar Floating Picoammeter

The FMC-PICO-1M4 series is composed of Low Pin Count (LPC) FPGA Mezzanine Cards that allow monitoring bipolar current with high sampling rate (1 MSPS) and high resolution (20 bit). Each picoammeter board has four (4) independent simultaneous-sampling channels and low-delay ADCs.

Each channel has two full-scale measuring ranges and the current source can float up to ±300 V respect to FMC ground. Floating capability is suitable for applications where the detector or current source needs to be biased.

The analog front-end is designed for low noise, low temperature dependence and very small unbalance between channels. Channels are factory-calibrated; data are stored in on-board EEPROM accessible via I2C bus on the FMC connector. A metallic EMI shield in a plastic cover both shields the analog front-end from external noise sources and insulates internal electronics that floats up to ±300 V respect to chassis ground.

A trigger signal can be fed to the FMC connector to start data sample conversion: this allows synchronization to external events (e.g., machine trigger signal in accelerators). Data readout can be performed via separate SPI links — one for each channel sharing the same clock signal — or daisy-chained, requiring fewer signals at the cost of some readout delay.

Different versions are available, differing by full-scale ranges and bandwidth. Some versions have a form factor slightly larger than the VITA 57.1 standard. The FMC-PICO-1M4 acts as the readout board for the AMC-PICO-8 platform.

### Features

- 4-channel simultaneous sampling
- Up to 1 MSPS sampling frequency
- 20-bit ADC conversion
- Two independent full-scale ranges per channel
- FPGA Mezzanine Card — VITA 57.1
- Floating up to ±300 V
- Low conversion time delay
- External trigger/gate and interlock
- On-board EEPROM
- Readout board for the AMC-PICO-8 by ELS Instruments

### Applications

- Detector readout
- Multi-channel fast current acquisition
- Photon beam position monitoring
- Radiation monitoring

### Technical specifications

| Parameter                              | C1      | C3      | C4      | C5      | C6     | C7      |
| -------------------------------------- | ------- | ------- | ------- | ------- | ------ | ------- |
| RNG0                                   | ±110 µA | ±10 mA  | ±1 mA   | ±10 mA  | ±1 mA  | ±500 µA |
| RNG1                                   | ±3 µA   | ±500 µA | ±20 µA  | ±2.5 µA | ±1 µA  | ±20 µA  |
| Analog BW (-3 dB) RNG0                 | 35 kHz  | 300 kHz | 200 kHz | 300 kHz | 25 kHz | 25 kHz  |
| Analog BW (-3 dB) RNG1                 | 35 kHz  | 300 kHz | 160 kHz | 20 kHz  | 25 kHz | 25 kHz  |
| Rise Time (10-90 %) RNG0               | 10 µs   | 1.2 µs  | 1.8 µs  | 1.2 µs  | 15 µs  | 15 µs   |
| Rise Time (10-90 %) RNG1               | 10 µs   | 1.2 µs  | 2.2 µs  | 18 µs   | 15 µs  | 15 µs   |
| Equivalent Input Noise (@ 1 MSPS) RNG0 | 1.8 nA  | 230 nA  | 25 nA   | 250 nA  | 12 nA  | 10 nA   |
| Equivalent Input Noise (@ 1 MSPS) RNG1 | 150 pA  | 15 nA   | 1.5 nA  | 500 pA  | 50 pA  | 500 pA  |

Common specifications:

- Input channels: 4
- Current polarity: bipolar
- Input channel potential: ±300 V respect to chassis ground (continuous)
- Sampling resolution: 20-bit
- Sampling rate: up to 1 MSPS
- Conversion time: 650 ns
- Absolute temperature coefficient: 10 ppm/K
- Additional features: trigger/SOC signal on FMC connector, range selection on FMC connector, factory calibration
- Mechanical dimensions: FMC — VITA 57.1

---

## FMC-2SFP+ / FMC-4SFP+ — Dual- and Quad-Channel FMC High-Speed SFP/SFP+ Adapter

The FMC-SFP+ is a cost-efficient FPGA Mezzanine Card (FMC) designed according to ANSI/VITA 57.1 standard. It offers two or four SFP/SFP+ module slots. All module pins are translated to the FMC Carrier Voltage (VADJ), which can be in the range of 1.5 V to 3.3 V — with this low operating voltage it can be used on almost all carriers.

The module is designed as HPC. Components are placed for compatibility with carriers that have components under the FMC module. The SFP+ cage is placed to fit all carriers without front-panel modification (the card is only 16 mm longer than described by FMC standard).

The module features an I2C-controlled LVDS oscillator chip operating from 10 to 280 MHz. Automatic configuration of clock oscillator and module pins for standalone operation is selectable via on-board jumpers (DIP switches).

Commercially available versions are the dual-channel FMC-2SFP+ with standard VITA 57.1 bezel and the quad-channel FMC-4SFP+. These FMC cards are mountable on DAMC-FMC2ZUP and DAMC-FMC25 carriers.

### Features

- FPGA Mezzanine Card
- HPC FMC module (VITA 57.1 compliant) with HPC compatibility
- Wide I/O operating voltage range: VADJ from 1.5 V to 3.3 V
- True level conversion of all SFP+ module pins including I2C bus lines
- I2C-controlled oscillator (10–280 MHz)
- Available as 2-channel or 4-channel version
- Fits on any FMC carrier without front-panel modification
- Individual module status via LEDs
- Autonomous mode: clock speed setting and transmitter activation via DIP switches

### Applications

- Fast communication interface
- Accelerator diagnostics and control

### Technical specifications

| Parameter                   | Dual-channel | Quad-channel |
| --------------------------- | ------------ | ------------ |
| Number of SFP/SFP+ channels | 2            | 4            |

Common specifications:

- Board type: FPGA Mezzanine Card – VITA 57.1
- FMC connector type: HPC – High Pin Count
- VADJ range: 1.5 V...3.3 V
- On-board oscillator frequency range: 10 MHz...280 MHz
- On-board oscillator configuration: I2C protocol
- Additional features: link status indication via front panel or bottom-emitting LEDs, autonomous mode (clock speed setting and transmitter activation via DIP switches)
- Mechanical dimensions: FMC — VITA 57.1

Designed and licensed by DESY.

---

# Custom Solutions and Engineering Services

ELS Instruments offers three levels of product engineering:

1. **Catalogue products** — standard models available off-the-shelf
2. **Customization of catalogue products** — modifications to existing models for specific customer requirements
3. **Engineering of full-custom products** — complete custom designs from scratch

## CPS — ELS Instruments Power Systems

For very high-current and high-power applications, ELS Instruments offers CPS (CAENels Power Systems) custom solutions. These are based on:

- Partnership with selected manufacturers for specific models, very high-current or high-power requirements
- REGUL8OR used as the controlling unit
- Extra crate to make operation bipolar (for SC magnets)
- PDU (Power Distribution Unit)

CPS solutions deliver the same digital control loop performance, stability, and connectivity (Ethernet, SFP+) as catalogue products, scaled to higher power levels.

---

# Contact Information

**ELS Instruments s.r.l.**
Via Karl Ludwig Von Bruck 32
34144 - Trieste (TS), Italy

Email: info@caenels.com
Web: www.els-instruments.com

For product datasheets, news, and additional information please refer to the company website at https://www.els-instruments.com/.

---

*Document last updated: April 2026. Specifications subject to change without notice. All trademarks are property of their respective owners. Information in this publication supersedes all previous versions.*