FX4 High Speed 4-Channel Precision Electrometer
The new FX4 is a high-performance four-channel precision electrometer designed to deliver ultra-sensitive, fast-changing current measurements across a wide dynamic range. The FX4 also incorporates a High-Integrity QNX Operating System, real-time processor and memory which allows it to filter, analyse and buffer incoming data as fast as it is gathered.
EPICS API is included, TANGO controls coming soon.
Features
- Four fully parallel multi-range I-V converters and ADCs
- Dynamic range 0.02nA to 10.0mA
- Integrated digitisation and filtering
- Servo functionality included as standard
- Analogue monitor outputs
- Configurable analogue and digital I/O
- Interlock relay outputs
- Configurable application-specific functions
- Ethernet interface with web server UI
- Optional high voltage output
Applications
- Quadrant ionisation chamber readout
- Quadrant photodiode and diamond readout
- Beam stabilisation
Options
- Auxiliary HV output options up to ± 2000V
- Customer application specific software
Specifications
| Parameter | Value |
|---|---|
| Operating principle | Multi-range transconductance amplifier (I-V converter) |
| Number of channels | Four |
| Current range and analogue bandwidth settings | Six current range settings, two with high bandwidth setting |
| High voltage | |
| Number and type | One optional internal HV supply, voltage options ± 100, 500, 1000, 2000 Maximum voltage and polarity specified at time of order |
| Compliance | 1W maximum output power |
| Monitoring | Output voltage, 12 bit resolution |
| Control | Software control of HV enable and voltage setting |
| Processors, memory and operating system | |
| Processors | AM335x ARM Cortex A8 1GHz primary processor Floating point accelerator |
| Memory | 512 MB DDR3 RAM 4GB eMMC flash NVR |
| Operating system | Blackberry QNX real-time operating system |
| Diagnostic Display | |
| Type | 240 x 240 pixel colour TFT |
| Functions | Display of user-assigned device name Display of network connection details Firmware version Display of summed current, HV output, relay states |
| Physical | |
| Case material | Stainless steel sheet |
| Protection rating | IP32 |
| Dimensions | 197mm x 137mm x 50mm |
| Weight | 1.04kg |
| Operating environment | 10°C to 35°C (15°C to 25°C recommended to reduce drift and offset) , < 70% humidity, non-condensing, vibration < 0.1g all axes (1 to 1000Hz) |
| Shipping and storage environment | -10°C to 50°C, < 80% humidity, non-condensing, vibration < 2g all axes, 1 to 1000Hz |
