©
National Instruments Corp.
27
NI 9213E Operating Instructions and Specifications
Safety
Safety Voltages
Connect only voltages that are within the following limits.
Between any two terminals
...............±
30 V max
Isolation
Channel-to-channel .................... None
Channel-to-earth ground
Continuous ........................... 250 V
rms
,
Measurement Category II,
(Double insulation)
Withstand ............................. 2,300 V
rms
, verified by a 5 s
dielectric withstand test
Measurement Category II is for measurements performed on
circuits directly connected to the electrical distribution system.
This category refers to local-level electrical distribution, such as
that provided by a standard wall outlet, for example, 115 V for U.S.
or 230 V for Europe.