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

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SECTION 8 MAINTENANCE
8 - 5
8.2 Filter Replacement
During the course of normal operation, dust and residual gas
vapor may build up on the membrane filter. The build up rate
depends on the working environment and the concentration of
the the vapors being sampled. As a guide, it is recommended
to replace the membrane filter once a week or when the filter is
dirty upon visual inspection.
1. Turn off power of the MiniRAE Plus Professional PID Unit.
Remove the probe assembly.
2. Use a tweezers to remove and replace the small O-ring
and the membrane filter from the round hole on the front of
the sensor block. Make sure that the O-ring is seated
correctly. Otherwise, the sampling probe will not be air
tight.
3. Attach the probe assembly. Check for air leakage. (see
section 8.4 )