Bacharach Monoxor II Service Manual download pdf (Page 6)

Single Gas Instrument Service Manual

Page 6 Bacharach, Inc. Instruction 0019-9166

2.2 Closing the Case

Figure 2-2.

P.C.B. and

Chamber Assem-

bly

Removal and

Installation

Equipment Needed:

• Phillips-Head Screwdriver, No. 1

Procedure:

CAUTION

When replacing the P.C.B. and chamber assembly, the P.C.B. must

be installed FIRST. The P.C.B. switches could be damaged if the

P.C.B. is installed after the chamber assembly is in place.

1. Ensure that the P.C.B. is properly positioned face down over its locating-tab

on the front case (Fig 2-2).

2. Properly position the chamber assembly between the ribs of the front case.

3. Slide the rear case over the inlet port and properly join the two case halves

together.

4. Secure the case halves to each other using the two screws removed in Sec-

tion 2.1, Step 4 (Tighten to 18–24 oz. in.).

5. Reinstall the batteries (observe proper battery polarity); replace the battery

cover; and attach the elastic strap’s metal clip to the bottom of the instru-

ment.

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Bacharach Monoxor II Service Manual Page 6