Servomex Servotough SpectraScan 2400, Руководство пользователя

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SERVOTOUGH SpectraScan User Manual
02400001A/1 62
10.0 Light Source Assembly Replacement Procedure
Light source replacement is recommended every 18 months or when the light indicator shows <
40% output. Neither the light source nor its circuit board can be repaired.
The light source assembly is a small circuit board with a light source under it, which attaches to the
top of the sensor head via a mounting hole for the light source and four bolts with lock washers.
Access only requires peeling back a corner of the blue bag surrounding the cell, and Velcro makes
this easy. Removal of the assembly is executed by disconnecting its connector and removing the
four bolts that hold it into place. Heat sink compound is applied to the light source prior to inserting
it into the cell.
WARNING
Electrical Hazard, Personal Injury and Equipment Damage: Do not perform
maintenance on an energized or gas supplied analyzer. When performing any
procedure that involves opening the unit, it is necessary to disconnect the
power source from the unit, and turn off the gas supply lines (sample gas and
zero gas).
1. Turn off all gas supply lines and turn off power to the analyzer before performing any
service procedure.
2. Open the cover of the SpectraScan using a large, flat-headed screwdriver turn the latch ¼
turn counter-clockwise, and open the cover.
3. Expose the light source assembly from underneath the blue bag:
Refer to Figure 5 - Interior of the Servomex SpectraScan Gas Analyzer on page 33 to
identify the location of the light source assembly.
4. Peel back the cover by opening the Velcro on the upper and right edges of the blue bag, as
shown in Figure 18.