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Caution
connectors unless power has been switched off or the
area is known to be nonhazardous.
Caution
been switched off or the area is known to be
nonhazardous.
Caution
suitability for Class I, Division 2.
Caution
install the system in an enclosure rated to at least IP54
as defined by IEC/EN 60079-15.
Caution
install a protection device across the external power
supply and the COM pin. The device must prevent the
external power supply voltage from exceeding 80 V if
there is a transient overvoltage condition.
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9477 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 03 ATEX 0324020X and is
Do not disconnect I/O-side wires or
Do not remove modules unless power has
Substitution of components may impair
For Division 2 and Zone 2 applications,
For Division 2 and Zone 2 applications,
NI 9477 Getting Started Guide | © National Instruments | 5
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