Diagnosing General Problems
Table 5 Troubleshooting Detector Issues
Problem | Possible Cause | Diagnosis | Corrective Action |
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|
|
|
No Response | No ozone | Little or no difference in | Continue below. See No |
|
| output signal between ozone | Ozone in Problem column. |
|
| ON vs. OFF. Typically the |
|
|
| background signal will be |
|
|
|
| |
|
| ozone ON. |
|
|
|
|
|
No Ozone | Blown fuse | Ozone indicator light | Replace ozone fuse. |
|
| remains off when ozone |
|
|
| button is pushed. |
|
No Ozone | High Voltage Transformer | No difference in output |
| and/or ozone generator is | signal between ozone ON vs. |
| inoperative. | OFF even though flow |
|
| through the ozone generator |
|
| is good (about |
|
|
Have ONLY someone with high voltage experience use a high voltage probe to check the input to the ozone generator across the two wires. It should be
>6000 volts. If it is not then replace high voltage transformer. If it is, replace ozone generator.
No Ozone | Ozone restrictor(s) plugged. | Needle on the regulator | Replace plugged |
|
| inside front panel does not | restrictor(s). |
|
| move downward when |
|
|
| regulator is turned fully |
|
|
| counterclockwise. The |
|
|
| measured flow is low or |
|
|
|
| |
|
|
|
|
No Response | Hydrogen and/or air ran out. | Measure flow rates. | Set correctly. |
|
|
|
|
No Response | Broken ceramic tube(s). | Pressure on Controller | Change tubes. |
|
| and/or Detector is too high |
|
|
| or too low. |
|
|
|
|
|
No Response | Heating element failure. | Temperature at Controller | Replace heating element. |
|
| <100 °C. |
|
|
|
|
|
Low Response | Improper hydrogen/air flow | Measure flow rates. | Adjust flow rates. |
| rates. |
|
|
|
|
|
|
Low Response | Detector leaks. | Note pressures on | Locate and repair leaks, |
|
| Controller. | check integrity of ferrules. |
|
|
|
|
Operation and Maintenance Manual | 113 |
