NI 9237 Operating Instructions and Specifications 28 ni.com
Physical Characteristics
If you need to clean the module, wipe it with a dry towel.
Weight...............................................152 g (5.4 oz)
Safety

Safety Voltages

Connect only voltages that are within the following limits.
Between any two pins....................... ±30 V max
Isolation
Channel-to-channel.................... None
Channel-to-earth ground
Continuous........................... 60 VDC, Measurement
Category I
Withstand.............................1,000 Vrm s, verified by a 5 s
dielectric withstand test
Measurement Category I is for measurements performed on
circuits not directly connected to the electrical distribution system
referred to as MAINS voltage. MAINS is a hazardous live electrical
supply system that powers equipment. This category is for