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 low impedance sources must include a
protection device installed between the source and the
AI and DIO terminals. The protection device must
prevent the AI to ground voltage and DIO to ground
voltage from exceeding 42 V if there is a transient
overvoltage condition.
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9381 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 12 ATEX 1202658X and is
IECEx UL 14.0089X certified. Each NI 9381 is marked II 3G
and is suitable for use in Zone 2 hazardous locations, in ambient
temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9381
in Gas Group IIC hazardous locations, you must use the device in
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NI 9381 Getting Started Guide
