DESCRIPTION
The EHS High Precision modules are multichannel high voltage power supplies in MMS system (Eurocard format) with exceptionally high stability, very low temperature coefficients and very low ripple and noise characteristics. With up to 16 channels each single channel has an independent voltage and current control. Compared to a standard module the High Precision EHS is equipped with a second current measurement range to precisely meter low currents. Switching between measurement ranges is done automatically. By offering different configurations and options this module perfectly covers various types of applications such as detector supply, experimental setup or lab use. The EHS High Precision module is available in two floating versions, Common Floating Ground (CFG) and Floating Ground (FG).
• 4 / 8 / 16 channel, 100 V – 20 kV versions.
• very low ripple and noise.
• hardware voltage and current limits.
• voltage and current control per channel.
• programmable parameters (delayed trip etc.).
Technical data
EHS High Precision series
SPECIFICATIONS | EHS HP CFG | EHS HP FG |
Polarity | Factory fixed, positive or negative | |
Floating principle | Common Floating Ground | Single Floating Ground |
Potential difference | 56 V channel/GND | 20 V channel/channel/GND, optionally up to 2 kV |
Ripple and noise (f > 10 Hz) | < 3 – 10 mVp-p | |
Ripple and noise (f > 1 kHz) | < 1 – 2 mVp-p | |
Ripple and noise (f > 10 Hz – 0.1 Hz) | < 5 – 30 mVp-p | |
Stablity | ||
Stability – [ΔVout vs. ΔVin] | < 1 • 10-5 • Vnom | |
Stability – [ΔVout vs. ΔRload] | < 1 • 10-4 • Vnom | |
Long term stability (1h warmup) 24h | < 2 • 10-5 • Vnom | |
Temperature coefficient | < 30 ppm / K | < 10 ppm / K (option T10) | |
Resolution – The resolution of measurable values depends on the settings of the sampling rate and the digital filter! | ||
Resolution voltage setting | 2 • 10-6 • Vnom | |
Resolution current setting([Iout > 20 μA]) | 2 • 10-6 • Inom | |
Resolution voltage measurement (1 | 1 • 10-6 • Vnom | |
Resolution current measurement [Iout > 20 μA] (1 | 1 • 10-6 • Inom | |
Resolution current measurement [Iout < 20 μA] (1 | 50pA | |
Measurement accuracy– The measurement accuracy is guaranteed in the range 1% • Vnom < Vout < Vnom and 1 year. | ||
Accuracy voltage measurement | ± (0.01 % • Vout + 0.01 % • Vnom) | |
Accuracy current measurement [Iout > 20 μA] | ± (0.01 % • Iout + 0.02 % • Inom) | |
Accuracy current measurement [Iout < 20 μA] | ± (0.01 % • Iout + 4 nA) | |
Sample rates ADC (SPS) | 5, 10, 25, 50 (2, 60, 100, 500 | 5, 10, 25, 50 (2, 60 |
Digital filter averages | 1, 16, 64 (2, 256, 512, 1024 | |
Voltage ramp | 1•10-6 • Vnom up to 0.2 • Vnom | |
Hardware limits | Potentiometer per module [Vmax / Imax] | |
Limit monitor voltage | 2.5 V | |
Digital interface | CAN | |
Protection | Safety loop, overload and short circuit protected,optionally INHIBIT per channel (ID / IU, NID / NIU) (ATTENTION: there is only one short circuit or arc per second allowed!) | |
HV connector | R51 | SHV | S08 | C15 | S20 | |
System connector | 96 PIN | |
Safety loop connector | Lemo 2pole | |
Limit monitor connector | Lemo 2pole | Lemo 1pole |
Case | 19 inch plug-in cassette | |
Dimensions – L/W/H | 220mm / 8HP / 6U | |
Operating temperature | 0 ... 40 °C | |
Storage temperature | -20 ... 60 °C | |
Humidity | 20 – 80 %, not condensing | |
Notes: (1)The resolution of measurable values depends on the settings of the sampling rate and the digital filter! (2)Factory Settings. |
Warm prompt:
EHS high precision series HV power supply is available in wide range of models,with different grounding modes, voltage ranges, channel numbers, etc. Therefore, please feel free to contact us , if you would like to looking for the most suitable, thank you!
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