Table of Contents
Advertisement
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
10.7.2.5. ADJUSTING THE UV LAMP (PEAKING THE LAMP)
Note
Figure 10-12: Disassembling the Shutter Assembly
6. Carefully remove the UV filter.
7. Install the UV filter.
8. Handle carefully and never touch the filter's surface.
9. UV filter's wider ring side should be facing out.
10. Install UV filter retainer and tighten screws.
11. Install the shutter cover and minifit connector. Tighten 4 shutter cover screws.
12. Reinstall the sensor module and Plug J4 connector into the motherboard.
There are three ways in which ambient conditions can affect the UV Lamp output and
therefore the accuracy of the SO
Line Voltage Change: UV lamp energy is directly proportional to the line voltage. This
can be avoided by installing adequate AC Line conditioning equipment such as a
UPS/surge suppressor.
Lamp Aging - Over a period of months, the UV energy will show a downward trend and
can be up to 50% in the first 90 days, and then a slower rate, until the end of useful life of
the lamp. Periodically running the UV lamp calibration routine (refer to Section 4.8.7)
will compensate for this until the lamp output becomes too low to function at all.
As the lamp degrades over time, the software for the CPU compensates for the loss of UV
06807A(DCNxxxx)
concentration measurement. These are:
2
Troubleshooting & Repair
291
Advertisement
Table of Contents
