National Instruments NI 9233 User Manual

U.S. (UL) .......................................... Class I, Division 2, 

Groups A, B, C, D, T4;
Class I, Zone 2,
AEx nC IIC T4

Canada (C-UL) ................................. Class I, Division 2, 

Groups A, B, C, D, T4;
Class I, Zone 2, 
Ex nC IIC T4

Europe (DEMKO)............................. EEx nC IIC T4

This product meets the requirements of the following standards of 
safety for electrical equipment for measurement, control, and 
laboratory use:

•

IEC 61010-1, EN 61010-1

•

UL 61010-1, CSA 61010-1

For UL and other safety certifications, refer to the 

product label or the 

 section.