Note
Measurement Categories CAT I and CAT O are
equivalent. These test and measurement circuits are not
intended for direct connection to the MAINS building
installations of Measurement Categories CAT II,
CAT III, or CAT IV.
Caution
Do not connect the NI 9250 with BNC to
signals or use for measurements within Measurement
Categories II, III, or IV.
Safety Guidelines for Hazardous Locations
The NI 9250 with BNC is suitable for use in Class I, Division 2,
Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx
nA IIC T4 and Ex nA IIC T4 hazardous locations; and
nonhazardous locations only. Follow these guidelines if you are
installing the NI 9250 with BNC in a potentially explosive
environment. Not following these guidelines may result in
serious injury or death.
Caution
Do not disconnect I/O-side wires or
connectors unless power has been switched off or the
area is known to be nonhazardous.
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NI 9250 with BNC Getting Started Guide
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