Merlin CH4CO
User Guide
Rev: 07 05-19
7
6
Circuit Board
1.
POWER (LNE)
An electrical supply should be supplied to the sensor. (100-240VAC)
This should be externally fused at 3 Amps and connected to these terminals.
2.
TO VALVE (LNE)
The gas solenoid valve should be powered using these terminals.
7
Power On & Off
How to turn your device ON
Supply 240vAC mains to the [L N E POWER IN] terminal.
Press RESET button.
How to turn your device OFF
Remove or switch off the mains power supply.
8
LED Status
Power LED
When the system is connected to the power supply, the Green Power LED will illuminate.
Methane LED
When the gas detector has reached alarm state for Methane, this will illuminate Red.
To reset Alarm press RESET button.
CO LED
When gas is detected, this will flash Red. If gas is exposed for pre-defined time – the Red LED will
remain ON. To reset the Alarm press RESET button.
