
© National Instruments Corp. 5 NI 9215 Operating Instructions and Specifications
Safety Guidelines for Hazardous LocationsThe NI 9215 is suitable for use in Class I, Division 2, Groups A, B, 
C, D, and T4 hazardous locations; Class I, Zone 2, AEx nC IIC T4 
and Ex nC IIC T4 hazardous locations; and nonhazardous locations 
only. Follow these guidelines if you are installing the NI 9215 in a 
potentially explosive environment. Not following these guidelines 
may result in serious injury or death.
Caution Do not disconnect I/O-side wires or connectors 
unless power has been switched off or the area is known 
to be nonhazardous.
Caution Do not remove modules unless power has been 
switched off or the area is known to be nonhazardous.
Caution Substitution of components may impair 
suitability for Class I, Division 2.
Caution For Zone 2 applications, install the system 
in an enclosure rated to at least IP54 as defined by 
IEC60529  and EN 60529.