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Teledyne API T703/T703U Calibrator Operation Manual Maintenance Schedule & Procedures
159
7.7. ADJUSTMENT OR REPLACEMENT OF OZONE GENERATOR
UV LAMP
This procedure details the steps for replacement and initial adjustment of the ozone
generator lamp. If you are adjusting an existing lamp, skip to Step 8.
1. Turn off the instrument.
2. Remove the cover from the instrument.
3. Locate the O
3
generator (see Figure 3-5).
UV Lamp
Set Screws
O
3
Generator
Body
Lamp
O-ring
Figure 7-4: O
3
Generator Temperature Thermistor and DC Heater Locations
4. Remove the two setscrews on the top of the O
3
generator and gently pull out the old
lamp.
5. Inspect the o-ring beneath the nut and replace if damaged.
6. Install the new lamp in O
3
generator housing.
Do not fully tighten the setscrews.
The lamp should be able to be rotated in the assembly by grasping the lamp
cable.
7. Turn on instrument and allow it to stabilize for at least 20 minutes.
8. Locate the O
3
generator reference detector adjustment potentiometer.
A
djustment
Pot
O
3
Generator
Reference
Detector
PCA
O
3
Generator
Body
Figure 7-5: Location of O
3
Generator Reference Detector Adjustment Pot
07223C DCN6572