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CompactRIO cRIO-9066/cRIO-9067 Operating Instructions
Safety Guidelines
Caution
Do
not
operate the cRIO-906
x
in a manner not specified in these operating
instructions. Product misuse can result in a hazard. You can compromise the safety
protection built into the product if the product is damaged in any way. If the product
is damaged, return it to National Instruments for repair.
Safety Guidelines for Hazardous Locations
The cRIO-906
x
is suitable for use in only Class I, Division 2, Groups A, B, C, D, T4 hazardous
locations; Class 1, Zone 2, AEx nA IIC T4 and Ex nA IIC T4 hazardous locations; and
nonhazardous locations. Follow these guidelines if you are installing the cRIO-906
x
in a
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
Substitution of components may impair suitability for Class I, Division 2.
Caution
For Zone 2 applications, install the CompactRIO system in an enclosure
rated to at least IP 54 as defined by IEC 60529 and EN 60529.
Caution
The USB port requires NI industrial USB cables with locking screws, NI
part number 152166-XX or 15788A-01. The cable must pass through conduit or
cable gland to a nonhazardous location. Do not disconnect the cable unless the
cRIO-906
x
is powered off or the area is known to be nonhazardous.
Special Conditions for Hazardous Locations Use in Europe
Some chassis have been evaluated as Ex nA IIC T4 Gc equipment under DEMKO Certificate
No. 12 ATEX 1202658X. Each such chassis is marked
II 3G and is suitable for use in Zone 2
hazardous locations in ambient temperatures of -20 °C
≤
Ta
≤
55 °C.
Caution
You
must
ensure that transient disturbances do not exceed 140% of the
rated voltage.
Caution
Mount the system in an ATEX certified enclosure with a minimum ingress
protection rating of at least IP 54 as defined in IEC/EN 60529 and use the system in
an environment of not more than Pollution Degree 2.
Caution
The enclosure must have a door or cover accessible only by the use of a
tool.
