National Instruments NI 9225E User Manual download pdf (Page 19)

© National Instruments Corp. 19 NI 9225E Operating Instructions and Specifications

Isolation Voltages

Channel-to-channel

Continuous .................................600 V

rms

,

Measurement Category II,

(Basic insulation)

Withstand.................................... 2,300 V

rms

, verified by a 5 s

dielectric withstand test

Channel-to-earth ground

Continuous .................................300 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.

Caution Do not connect the NI 9225E to signals or use for

measurements within Measurement Categories III or IV.

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