National Instruments NI 9209 Getting Started Manual page 6

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.
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9209 has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO 12 ATEX 1202658X and is IECEx UL 14.0089X
certified. Each NI 9209 is marked
in Zone 2 hazardous locations, in ambient temperatures of -40 °C
≤ Ta ≤ 70 °C. If you are using the NI 9209 in Gas Group IIC
hazardous locations, you must use the device in an NI chassis that
has been evaluated as Ex nC IIC T4, Ex IIC T4, Ex nA IIC T4, or
Ex nL IIC T4 equipment.
Caution
disturbances do not exceed 140% of the rated voltage.
6 | ni.com | NI 9209 Getting Started Guide
Do not remove modules unless power has
Substitution of components may impair
For Division 2 and Zone 2 applications,
You must make sure that transient
II 3G and is suitable for use