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Optical Break Locator
Appendix. Troubleshooting
A.1 Problems/Causes/Solutions
Problem: The unit won't turn on or off.
Possible Causes:
1. No power input.
2. The battery is exhausted.
3. The battery is installed in reverse.
Solution:
1. Plug in the battery or AC power adapter.
2. Charge the battery.
3. Re-install battery.
4. If the unit still doesn't work, return it to Black Box (for details, see Section A.2).
Problem: The unit goes on and off sometimes, but not always.
Possible Cause: Low battery.
Solution: Charge the battery or use the AC power supply.
Problem: Measurement is not accurate.
Possible Causes:
1. The connector is contaminated.
2. The connector does not fit properly.
Solution:
1. Clean the dust from the connector with an alcohol-dipped thin cotton swab.
2. Re-install the connector.
Problem: Error display is on.
Possible Causes:
1. The environment is humid.
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