18 | ni.com | NI 9401 Operating Instructions and Specifications
Safety
Maximum Voltage
1
Connect only voltages that are within the following limits.
Channel-to-COM .............................. ±30 V max on one channel
at a time, Measurement
Category I
Isolation Voltages
Channel-to-channel........................... None
Channel-to-earth ground
Continuous ................................. 60 VDC, Measurement
Category I
Withstand.................................... 1,000 V
rms
, verified by a 5 s
dielectric withstand test
1
The maximum voltage that can be applied or output between any channel and COM
without damaging the module or other devices.
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