Rae MiniRAE Plus PGM-76, Руководство по эксплуатации и обслуживанию

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SECTION 8 MAINTENANCE
8 - 7
Sensor Module Cleaning Procedure
1. Turn off power of the MiniRAE Plus Professional PID Unit.
2. Refer to Figure 8.1, unscrew the probe assembly, remove
four screws and open the MiniRAE Plus Professional PID
Unit. Remove the sensor module by gently pulling the
module away from the PCB of the top cover.
3. Refer to Figure 8.2, and carefully remove 4 hex nuts from
the back of the lamp house. Remove the lamp and O-ring.
Also remove the membrane filter and small O-ring which
are held together inside the round hole on the front cover.
Note: the sensor block is hold together by another 4 hex
nuts at the back of the sensor block. It is not
recommended to remove these 4 inner hex nuts and
completely disassemble the sensor block for cleaning.
Simply loosen these 4 inner hex nuts for cleaning. This way
all the individual pieces of the sensor block can be cleaned
easily without the hassle of disassembling and assembling
the entire sensor block.
4. Clean the sensor block using GC grade methanol, followed
by water to rinse the sensor block thoroughly. It is highly
recommended that a ultrasound bath to be used to clean the
sensor block for at least 3 minutes.
5. Make sure the sensor block is fully dried before it is
reassembled. A damp sensor block will cause excessive