National Instruments NI 9212, Manual

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MAINS building installations of Measurement Categories CAT II, CAT III, or
CAT IV.
Safety Guidelines for Hazardous Locations
The NI 9212 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 9212 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 Division 2 and Zone 2 applications, install the system in an
enclosure rated to at least IP54 as defined by IEC/EN 60079-15.
Caution
For Division 2 and Zone 2 applications, connected signals must
be within the following limits.
Capacitance 0.2 µF maximum
Special Conditions for Hazardous Locations Use in Europe and
Internationally
The NI 9212 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO 12
ATEX 1202658X and is IECEx UL 14.0089X certified. Each NI 9212 is marked II 3G
and is suitable for use in Zone 2 hazardous locations, in ambient temperatures of
© National Instruments
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NI-9212