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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.
Caution
Do not connect the NI 9852 to signals or use
for measurements within Measurement Categories II,
III, or IV.
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NI 9852 Getting Started Guide