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

Compression Check

Compression pressure
Standard 830 kPa (8.5 kgf/cm2, 120 psi) [250 rpm]
Minimum 680 kPa (6.9 kgf/cm2, 98.6 psi) [250 rpm]
Standard difference in chambers:
Within 150 kPa (1.5 kgf/cm2, 21.8 psi)
Standard difference in rotors Within 100 kPa (1.0 kgf/cm2, 14.5 psi)