Model IR4000S
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There are four entry holes in the IR4000S housing. These holes can be used to attach
an IR400 or IR2100 unit directly, as well as for wiring conduits to alarm relays and control
room equipment.
Each hole is tapped for ¾” NPT threads.
If a particular entry hole is not used, it must be
plugged during operation in the field. The factory installs plugs in the unused entry holes,
except one. A red plastic cap is placed into the remaining hole and must be removed
before conduit can be attached to the housing.
When an IR400 Gas Detector or other device is attached to the IR4000S housing, it must
be screwed into the housing using five to seven turns to ensure that the explosion-proof
integrity of the housing is maintained.
5.5 Storage
The IR4000S Single-Point Monitor should be stored in a clean, dry area, and within the
temperature and humidity ranges noted for environmental specifications in Section 9.2.5.
Insert red dust caps into any vacant cable entry holes.
