Safety Guidelines For Hazardous Locations - National Instruments NI-9375 Getting Started

Isolation
DI bank-to-DO bank
Channel-to-Channel
Channel-to-earth ground
Continuous
Withstand

Safety Guidelines for Hazardous Locations

The NI 9375 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous
locations; Class I, Zone 2, AEx nA IIC T4 Gc and Ex nA IIC T4 Gc hazardous locations;
and nonhazardous locations only. Follow these guidelines if you are installing the
NI 9375 in a potentially explosive environment. Not following these guidelines may
result in serious injury or death.
Caution
been switched off or the area is known to be nonhazardous.
Caution
the area is known to be nonhazardous.
Caution
Division 2, or Zone 2.
Caution
intended hazardous (classified) location, having a tool secured cover/door,
where a minimum protection of at least IP54 is provided.
4
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60 V DC, Measurement Category I
1,000 V RMS, verified by a 5 s dielectric withstand test
Do not disconnect I/O-side wires or connectors unless power has
Do not remove modules unless power has been switched off or
Substitution of components may impair suitability for Class I,
The system must be installed in an enclosure certified for the
60 V DC maximum
No isolation between channels
NI-9375 Getting Started