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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Leak Detection Sensor: Specifications

Output voltage with voltmeter connected to terminals PTNK and E2 of the ECM under the following conditions

Vacuum (2.0 kPa, 0.59 in Hg) applied 1.3 - 2.1 Volts
No vacuum 3.0 - 3.6 Volts
Pressure (1.5 kPa, 0.22 psi) applied 4.2 - 4.8 Volts