Isolation Voltages
Channel-to-channel
None
Channel-to-earth ground up to 2,000 m altitude
Continuous
250 V RMS, Measurement Category II
Withstand
2,300 V RMS, verified by a 5 s withstand test
Channel-to-earth ground up to 5,000 m altitude
Continuous
60 V DC, Measurement Category I
Withstand
1,000 V RMS, verified by a 5 s withstand test
Safety Guidelines for Hazardous Locations
The NI-9203 is suitable for use in hazardous locations; , and hazardous locations;
and nonhazardous locations only. Follow these guidelines if you are installing the
NI-9203 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.
Caution
Substitution of components may impair suitability for Class I,
Division 2, or Zone 2.
Caution
The system must be installed in an enclosure certified for the
intended hazardous (classified) location, having a tool secured cover/door,
where a minimum protection of at least IP54 is provided.
ni.com
4
NI-9203 Getting Started
