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EHS 高精度多通道高压电源

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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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