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)

Or, hide this message: temporarily or permanently

In Dynamic Chamber

1. Disconnect thermosensor connector.
2. Check resistance across sensor terminals.
3. Check that resistance corresponds to these values:

K OHMS AIR TEMP.

33 ± 4 25°C / 77°F
3.5 ± 0.4 85°C / 185°F

4. As an alternate method, remove sensor and place in a container of water with a thermometer.
5. Connect an ohmmeter across sensor terminals and slowly heat water.
6. Check that resistance varies according to the table above.
7. If not as specified, replace sensor.