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High Voltage Module for DAS1800 and DAS1820 from B&K Precision and Sefram Instruments.
Configure the DAS1800 to fit your needs with any combination of modules up to 10.
Select any 2 modules in the portable DAS1820.
| Universal | High Impedance | High Voltage | Multiplexed | |
| Channels | 4 | 4 | 4 | 8 |
| Maximum Voltage | ± 600 VDC | ± 600 VDC | ± 1500 VDC | ± 48 VDC |
| RMS Voltage | 424 VRMS | 424 VRMS | 1000 VRMS | – |
| Resolution | 16 bit | 16 bit | 16 bit | 18 bit |
| Sampling Rate | 1 MSa/s/ch | 1 MSa/s/ch | 1 MSa/s/ch | 5 kSa/s |
| Input Impedance | 1 MΩ | 10 MΩ | 10 MΩ | 2 MΩ |
| Input Type | Single Ended | Single Ended | Differential | Differential |
| Isolation | √ | √ | √ | – |
| Voltage | √ | √ | √ | √ |
| Current | √ | √ | √ | √ |
| Thermocouples | √ | √ | – | √ |
| RTDs | – | – | – | √ |
| Frequency | √ | √ | √ | – |
| Counter | √ | √ | √ | √ |
| PWM | √ | √ | √ | – |
| Number of Channels | 4 | |
| Input Type | Isolated differential input - 4mm Banana Plug | |
| Max. Input Voltage | ± 1500 VDC or 1000 Vrms |
| Overvoltage Protection | ± 2000 VDC or 1414 Vrms *1 |
| Range (9 Ranges) | ± 5 V / 10 V / 25 V ± 50 V / 100 V / 250 V ± 500 V / 1000 V / 2000 V |
| DC Accuracy *2 | ± 0.06% of full range |
| Offset Drift | ± 50 ppm/°C ± 1 μV/°C |
| Input Impedance (DC) | 10 MΩ |
| Input Capacitance | 10 pF |
| Intrinsic Noise *3 (standard deviation in % of the span) |
< 0.02% |
| CMRR (Common mode rejection range) |
> -120 dB |
| Crosstalk | > -120 dB |
| Channel Isolation | CH to CH and CH to GND, > 100 MΩ at 2000 VDC |
| Safety | CAT III 1500 VDC, CAT IV 1000 V |
| Bandwidth (-3 dB) |
Ranges ≤ ± 2.5 V | 30 kHz |
| Ranges ≥ ± 50 V | 100 kHz | |
| Analogue Filter | 3rd order (-60 dB/dec) | 100 Hz, 1 kHz, 10 kHz |
| Digital Filter | IIR 4th order (-80 dB/dec) | 0.01 Hz to 10 kHz |
| Type | Low pass, high pass, band pass, band stop | |
| Filter Response | Butterworth, Bessel, Chebyshev, Inverse Chebyshev, Elliptic, Papoulis, Gaussian |
| ADC | 16 bit – SAR | |
| Sampling Interval | 1 μs (1 MSa/s) each channel | |
| Threshold | Set by user, auto | |
| Duty Cycle | 10% minimum – (minimum pulse width, 20 μs) | |
| Counter | 48 bits | |
| Frequency | 0.1 Hz to 50 kHz | |
| Accuracy: 0.01% from 0.1 Hz to 10 Hz 0.05% of the value from 10 Hz to 50 kHz |
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| PWM | Absolute error: 0.1% - 0.1 Hz to 1 kHz 0.5% ≥ 1 kHz to 5 kHz |
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| Compute Period | Compute on the 1 Ms/s data flow Each period until 100 Hz 10 ms between 100 Hz and 10 kHz |
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| Accuracy (on a Sine wave for range ≥ 10 V) |
10 Hz to 2 kHz | ± 0.1% of full range |
| 2 kHz to 10 kHz | ± 0.3% of full range | |
| Current | Through shunt or clamp | |
| Sensor | 0 to 10 V, 4 to 20 mA (with external shunt), duty cycle or frequency sensor, other user defined settings | |
| Calculations | Derivative, integral, min - max - avg - pk to pk on Δt | |
Note: All specifications apply to the unit after a temperature stabilization time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C.
*1 CH to Earth GND withstand voltage 6.6 kV AC for 5 seconds
*2 Direct measure, full bandwidth, value taken on DMM display at 10 (50 Hz) / 12 (60 Hz) NLPC (200 ms)
*3 Measure ± short circuit terminate to 50 Ω on chassis during 1 sec at the fastest acquisition speed and full bandwidth
