Справочник Пользователя для National Instruments NI 9265

© National Instruments Corp.

Connect only voltages that are within the following limits.

Channel-to-COM or V

sup

-to-COM ... ±40 V max

Channel-to-channel........................... No isolation between 

channels

Channel-to-earth ground, V

sup

-to-earth ground, 

or COM-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 

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.