Safety

Safety Voltages

Connect only voltages that are within the following limits.

CHa-to-CHb......................................

250 Vrms max,

 

Measurement Category II

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.

Caution Do not connect the NI 9481E to signals or use for measurements within Measurement Categories III or IV.

Isolation

 

Channel-to-channel

 

Continuous ...........................

250 Vrms

 

(Basic insulation)

Withstand .............................

1,400 Vrms, verified by a 5 s

 

dielectric withstand test

NI 9481E Operating Instructions and Specifications 10

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