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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Solar Sensor: Testing and Inspection

SOLAR RADIATION SENSOR INSPECTION

1. Remove the solar radiation sensor.
2. Shine an incandescent light (60 W) on the solar radiation sensor from a distance of approximately 100 mm {3.94 in).

3. Connect positive (+) lead to terminal A and negative (-) lead to terminal B of the solar radiation sensor connector (male).
- If the output voltage is not above 0.45 V, replace the solar radiation sensor.