Teledyne T100, Instruction Manual, Page: 293 / 404

Teledyne ML - T100 UV Fluorescence SO2 Analyzer Troubleshooting & Repair
06807A(DCNxxxx) 293
1. Set the analyzer display to show the signal I/O function, UVLAMP_SIGNAL (refer to
Section 10.1.3). UVLAMP_SIGNAL is function 33.
2. Slightly loosen the large brass thumbscrew located on the shutter housing (refer to
Figure 10-14) so that the lamp can be moved.
DO NOT
Use Lamp Cap to
adjust Lamp position
UV Lamp
Power Supply
Wires
Thumb screw
UV Lamp
Bracket
Mounting
Screws
Adjust Lamp
Position by
grasping Lamp
body ONLY
Figure 10-14. UV Lamp Adjustment
ATTENTION
COULD DAMAGE INSTRUMENT
DO NOT grasp the UV lamp by its cap when changing its position - always grasp the main
body of the lamp (refer to Figure 10-13) Inattention to this detail could twist and potentially
disconnect the lamp’s power supply wires.
3. While watching the UVLAMP_SIGNAL reading, slowly rotate the lamp or move it
back and forth vertically until the UVLAMP_SIGNAL reading is at its maximum.
4. Compare the UVLAMP_SIGNAL reading to the information in Table 10-10 and follow
the instructions there.
Table 10-10: Example of HVPS Power Supply Outputs
UVLAMP_SIGNAL ACTION TO BE TAKEN
3500mV±200mV. No Action Required
> 4900mV at any time.
Adjust the UV reference detector potentiometer (Figure 10-15) until
UVLAMP_SIGNAL reads approximately 3600mV before continuing to adjust the
lamp position.
>3700mV or < 3300mV
Adjust the UV reference detector potentiometer (Figure 10-15) until
UVLAMP_SIGNAL reads as close to 3500mV as possible.
.< 600mV Replace the lamp (Section 10.7.2.6.