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

CO Potentiometer (At HLM)

Check function:
[D] 200 - A voltage of 1.25 V should be indicated in the basic setting. Precise idle CO tuning (by adjusting the potentiometer) should only take place in conjunction with CO measurement The typical range is between 1.3 and 1.5 V.