module are properly insulated from human contact. You
must use the NI 9972 backshell kit to ensure that the
terminals are not accessible.
Safety Voltages
Connect only voltages that are within the following limits.
Isolation
Channel-to-channel
Continuous
250 V AC, Measurement
Category II
Withstand
1,500 V AC, verified by a 5 s
dielectric withstand test
Channel-to-earth ground
Continuous
250 V AC, Measurement
Category II
Withstand
3,000 V AC, verified by a 5 s
dielectric withstand test
4
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NI 9219 Getting Started Guide