Safety Guidelines For Hazardous Locations - National Instruments NI-9214 Manual

Withstand
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
within Measurement Categories III or IV.

Safety Guidelines for Hazardous Locations

The NI 9214 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 and Ex nA IIC T4 hazardous locations; and
nonhazardous locations only. Follow these guidelines if you are installing the
NI 9214 in a potentially explosive environment. Not following these guidelines may
result in serious injury or death.
Caution
has been switched off or the area is known to be nonhazardous.
Caution
the area is known to be nonhazardous.
Caution
Division 2.
Caution
enclosure rated to at least IP54 as defined by IEC/EN 60079-15.
Caution
be within the following limits.
Do not connect the NI 9214 to signals or use for measurements
Do not disconnect I/O-side wires or connectors unless power
Do not remove modules unless power has been switched off or
Substitution of components may impair suitability for Class I,
For Division 2 and Zone 2 applications, install the system in an
For Division 2 and Zone 2 applications, connected signals must
2,300 Vrms, verified by a 5 s dielectric withstand
test
NI-9214
© National Instruments
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