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.
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9251 with mini XLR 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 9251
with mini XLR 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 9251 with mini XLR 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
You must make sure that transient
disturbances do not exceed 140% of the rated voltage.
Caution
The system shall only be used in an area of
not more than Pollution Degree 2, as defined in
IEC 60664-1.
NI 9251 with mini XLR Getting Started Guide
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