![background image](http://html1.mh-extra.com/html/national-instruments/ni-9218/ni-9218_getting-started-manual_709232006.webp)
intended for direct connection to the MAINS building
installations of Measurement Categories CAT II,
CAT III, or CAT IV.
NI 9218 with DSUB Safety Voltages
Connect only voltages that are within the following limits:
Maximum voltage,
from any pin to any pin
on a single connector
3
±30 V
Isolation
Channel-to-channel, channel-to-Vsup inputs (up to 5,000 m)
Continuous
60 VDC, Measurement
Category I
Withstand
1,000 Vrms, verified by a 5 s
dielectric withstand test
3
The maximum voltage between pin 2 and pin 3 on a single connector is -20 V to
+30 V.
NI 9218 Getting Started Guide
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© National Instruments
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