5.1 Area Classification Installation Safety
If the instrument is used as an explosion proof (exp) device then exp conduit must be sealed within 18
inches of the termination point – at the instrument.
Power must be supplied by an isolated supply.
Caution-To reduce the risk of ignition of hazardous atmospheres, disconnect the device from the supply
circuit, or area must be known to be non-hazardous, before opening.
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