National Instruments NI 9217 - Manual (Page 19)

© National Instruments Corp. 19 NI 9217 Operating Instructions and Specifications
Safety
Maximum Voltage 1
Connect only voltages that are within the following limits.
All terminals-to-COM.........................±30 V
Isolation Voltages
Channel-to-channel...........................None
Channel-to-earth ground
Continuous ................................. 250 V
rms
, Measurement
Category II
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.
1 The maximum voltage that can be applied between any channel or V
sup
terminal and
a COM terminal without damaging the module or other devices.