potentially explosive environment. Not following these guidelines may result in serious injury
or death.
Caution Do not disconnect the power supply wires and connectors from the
controller unless power has been switched off.
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 The USB port requires NI Industrial USB Extender Cable (152166-xx)
for hazardous locations. All cables must be used in a conduit or cable gland to wire
to a nonhazardous location. Do not disconnect a cable unless the cRIO-9068 is
powered off or the area is known to be nonhazardous.
Special Conditions for Hazardous Locations Use in Europe and
Internationally
The cRIO-9068 has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO 12
ATEX 1202658X and is IECEx UL 14.0089X certified. Each device is marked
II 3G and is
suitable for use in Zone 2 hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤
70 °C.
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/EN 60664-1.
Caution The system shall be mounted in an ATEX/IECEx-certified enclosure with
a minimum ingress protection rating of at least IP54 as defined in IEC/EN 60079-15.
Caution The enclosure must have a door or cover accessible only by the use of a
tool.
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits for
electromagnetic compatibility (EMC) stated in the product specifications. These requirements
2 | ni.com | cRIO-9068 Getting Started Guide
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