Port-to-earth ground
...........................................
Continuous
60 VDC,
Measurement Category I up
to 5,000 m altitude
...........................................
Withstand
500 V
rms
, 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
circuits. Such voltage measurements include signal levels, special
equipment, limited-energy parts of equipment, circuits powered
by regulated low-voltage sources, and electronics.
Note
Do not connect the NI 9853 to signals or use for
measurements within Measurement Categories II, III,
or IV.
NI 9853 Getting Started Guide
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© National Instruments
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