Metrohm NIRS XDS Process Analyzer – SingleFiber - Manual (Page 44)

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1. Loosen the 1/16” set screw that secures the
round green housing to the base of the Electronic
Power Control Unit (EPCU). (It is not tightened at
the factory, and may not need to be loosened.)
Rotate the green cast cover counter-clockwise
until it can be removed from the square base.
This takes about 8-10 turns.
2. When the green cast cover is removed, the
Control Module Assembly will be exposed as
shown.
Using a #1 Phillips screwdriver, remove both
screws holding the Display Interface Module face
in place.
3. Gently lift the Display Interface Module face plate
off. Put in safe place.
4. Unplug both wired headers, as shown, from the
Encapsulated Intrinsic Safety Module (EISM).