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TROUBLESHOOTING & REPAIR M102E/M501 TRS
(Addendum to M101E Manual - P/N 04740 Rev A)
9. Finger tighten the thumbscrew.
NOTE:
DO NOT over-tighten the thumbscrew.
10. Perform a lamp calibration procedure (see Section 6.9.7 of the M101E Manual - P/N 04740
Rev A) and a zero point and span point calibration (see Chapter 7 of the M101E Manual - P/N
04740 Rev A).
10.5.2. Replacing the UV filter/lens
Note:
Be careful not to leave thumbprints on the interior of the sample chamber. The various
oils that make up fingerprints fluoresce brightly under UV light and will significantly
affect the accuracy of the analyzer’s SO
2
measurement)
1. Turn off the instrument’s power and remove the power cord from the instrument.
2. Unplug the J4 connector from the motherboard to allow tool access.
3. Remove 4 screws from the shutter cover (see figure 11-2) and remove the cover .
4. Remove 4 screws from the UV filter retainer.
Shutter Housing
UV Filter Retainer
& Lens Housing
Reaction
Cell
Shutter
Cover
Screws
Shutter Cover
Screws
Filter Retainer
Screws
Filter Retainer
Screws
Figure 10-2: Disassembling the Shutter Assembly
58 05514 Rev A1