Safety Guidelines For Hazardous Locations - National Instruments NI 9226 Getting Started Manual

equipment, limited-energy parts of equipment, circuits powered
by regulated low-voltage sources, and electronics.
Note
signals or use for measurements within Measurement
Categories II, III, or IV.
Caution
for measurements within Measurement Categories II,
III, or IV.
Note
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.

Safety Guidelines for Hazardous Locations

The NI 9226 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 9226 in a potentially explosive environment. Not following
these guidelines may result in serious injury or death.
6 | ni.com | NI 9226 Getting Started Guide
Do not connect the NI 9226 with DSUB to
Do not connect the NI 9226 to signals or use
Measurement Categories CAT I and CAT O are