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© National Instruments Corp. 3 NI 9401 Operating Instructions and Specifications
Safety Guidelines
Operate the NI 9401 only as described in these operating
instructions.
Hot Surface This icon denotes that the component may be
hot. Tou ching this component may result in bodily injury.
Safety Guidelines for Hazardous Locations
The NI 9401 is suitable for use in Class I, Division 2, Groups A, B,
C, D, T4 hazardous locations; Class I, Zone 2, AEx nC IIC T4, and
Ex nC IIC T4 hazardous locations; and nonhazardous locations
only. Follow these guidelines if you are installing the NI 9401 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.
Caution Do not remove modules unless power has been
switched off or the area is known to be nonhazardous.