Safety Voltages
Connect only voltages that are within the following limits:
Channel-to-COM
1
60 VDC maximum,
Measurement Category I
Isolation
Channel-to-channel
None
Channel-to-earth ground
Continuous
60 VDC,
Measurement Category I
Withstand
1,000 Vrms, 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 measurements of voltages from specially protected secondary
1
The maximum voltage that can be applied or output between a channel and
COM without creating a safety hazard.
NI 9477 Getting Started Guide
|
© National Instruments
|
3
