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M102E/M501 TRS TROUBLESHOOTING & REPAIR
(Addendum to M101E Manual - P/N 04740 Rev A)
UV Lamp Bracket
Mounting Screws
Shutter Housing
Shutter Assy
UV Filter Retainer
& Lens Housing
UV Lamp Power
Supply Wires
Thumb
Screw
DO NOT
use Lamp Cap to
adjust Lamp
position
Reaction
Cell
Adjust Lamp
Position by
grasping lamp
body ONLY
Figure 10-1: Shutter Assembly - Exploded View
10.5.1.2. Replacing the UV Lamp
1. Turn off the analyzer.
2. Disconnect the UV lamp from its power supply.
• You can find the power supply connector by following the two, white UV Lamp power
supply wires from the lamp to the power supply.
3. Loosen, but do not remove the two UV lamp bracket screws, and the large brass thumbscrew
located on the shutter housing (see Figure 10-1) so that the lamp can be moved.
NOTE:
DO NOT grasp the UV lamp by its cap when changing its position (see Figure 10-1).
Always grasp the main body of the lamp.
4. Remove the UV Lamp by pulling it straight up.
5. Insert the new UV lamp into the bracket.
6. Tighten the two UV lamp bracket screws, but leave the brass thumb screw un-tightened.
7. Connect the new UV lamp to the power supply.
8. Turn the instrument on and perform the UV adjustment procedure as defined in section
10.5.1.1 of this addendum
05514 Rev A1 57