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Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Solar Sensor: Testing and Inspection





SOLAR RADIATION SENSOR INSPECTION

1. Using a tester, connect the positive (+) lead to solar radiation sensor terminal A, the negative (-) lead to terminal B or C, then measure the resistance.

- If the resistance is not normal, replace the solar radiation sensor.

Resistance
- except infinity ohms

2. Block the light to the solar radiation sensor, connect the positive (+) lead of a tester to solar radiation sensor terminal B or C and negative (-) lead to terminal A, then measure the resistance.

- If the resistance is not normal, replace the solar radiation sensor.

Resistance
- infinity ohms (no continuity)

3. Expose the solar radiation sensor to natural sunlight.






4. Using a tester, connect the positive (+) lead to solar radiation sensor terminal B or C, the negative (-) lead to terminal A, then measure the resistance.

- If the resistance is not normal, replace the solar radiation sensor.

Resistance
- except infinity ohms