Rae MiniRAE Plus PGM-76, Operation And Maintenance Manual

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SECTION 8 MAINTENANCE
8 - 11
8.5 Lamp Cleaning and Replacement
If the lamp does not turn on or there is excessive film build -up
on the lamp window, the unit will display a message of " Err
xxx.x " to indicate that a cleaning or replacement of the lamp
may be required. Periodic cleaning of the lamp window will
also remove film deposits and restore lamp sensitivity.
Care
must be exercised when cleaning the window so that
window surface is not damaged.
1. Turn off power of MiniRAE Plus Professional PID Unit.
2. Refer to Figure 8.1, unscrew the probe assembly, remove
four screws and open the PID covers. Remove the sensor
module from the PCB. Disassemble the sensor block from
the lamp house as described in section 8.2.
3. Gently pull out the lamp, avoiding contact with the flat
window surface.
4. Clean or replace a new lamp, avoiding contact with the flat
window surface.
5. Assemble the sensor block and the lamp house. Put back
the sensor module. Close the PID covers and replace
screws. Replace probe assembly.