User Manual

11
Default Configuration – Factory Settings
 The default Gas setting is ME (methane)
 The default Power Up Test setting is On
 The default Display setting is Off
 The default Buzzer setting is Off
 The default Alarm Relay Setting is activation at 20% LEL
 The default Alarm Relay Configuration is Normally Open
 The default Fan Relay Setting is activation at 10% LEL
 The default Fan Relay Delay setting is 3 minutes
 The default Fan Relay Runtime setting is 0
 The default Fan Relay Latching condition is OFF
 The default Trouble Fan Setting condition is OFF
 The default 4-20 mA Output setting is On
To change settings, remove the Philips screw on the front of the GD-12. Pull off the front cover of the unit.
Gas Selection
To select the Gas Option, in normal mode, press the Next button once to display the current gas selection (mE is Methane, Pro is
Propane and Hy is Hydrogen). Then press the Enter button twice to enter the selection menu. The currently selected gas will be
shown on the display. Press Next to scroll through the available gases selections. The selected gas will be flashing, press Enter to
select the gas and Enter again to confirm the selection. To return back to normal mode press Next until “End” is displayed and press
Enter.
Selecting Default Configuration – “dEF”