Alldaq ADQ-250 cPCI, Manual

Page: 26 / 38

26 Appendix
Appendix Manual ADQ-250 series Rev. 0.9
Element Condition Specification
Input impedance Standard R
i
> 100 MΩ, typ. 240 MΩ, C
i
= 4 pF
Extended tbd.
Isolation voltage Channel to PC ground 700 VDC / 700 VAC
RMS
(60 Hz)
Channel to channel 700 VDC / 700 VAC
RMS
(60 Hz)
Accurracy see separate table
Temperature drift 20 ppm/°C
Value FIFO
8192 values for all channels
Channel list Channel selection 8 entries
Ground reference fully differential channels
* The effective transfer rate depends largely on the performance of your computer, the number of installed boards and
the number of channels used.
Accurracy of the analog inputs ADQ-255
Conditions: 100 values sampled with 100 kHz and subsequent average calculation
Measuring range Data point Expanded measurement uncertainty 1)
(coverage factor k = 2)
±10.24 V range
(1 LSB = 0.3125 mV)
10 V ±0.332 mV (0.003%)
5 V ±0.302 mV (0.006%)
1 V ±0.260 mV (0.026%)
±102.4 V range
(1 LSB = 3.125 mV)
100 V tbd.
50 V tbd.
10 V tbd.
Accurracy of the analog inputs ADQ-256
Conditions: 100 values sampled with 100 kHz and subsequent average calculation
Measuring range Data point Expanded measurement uncertainty
1)
(coverage factor k = 2)
±10.24 V range
(1 LSB = 0.3125 mV)
10 V ±0.376 mV (0.004%)
5 V ±0.357 mV (0.007%)
1 V ±0.289 mV (0.029%)
±102.4 V range
(1 LSB = 3.125 mV)
100 V tbd.
50 V tbd.
10 V tbd.