User Manual

11
Default Configuration – Factory Settings
 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 5.0 ppm
 The default Alarm Relay Configuration is Normally Open
 The default Fan Relay Setting is activation at 2.5 ppm
 The default Fan Relay Delay setting is 3 minutes
 The default Fan Relay Runtime setting is OFF
 The default Fan Relay Latching condition is OFF
 The default Trouble Fan Setting condition is OFF
 The default 4-20mA Output setting is OFF
To change settings, remove the Philips screw on the front of the TX-12-ND. Pull off the front cover of the unit.
Selecting Default Configuration – “dEF”
To select the Default Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. The first selection is the “dEF” or Default setting. Push Enter. If it is already in Default
configuration, there will be no action. If it is not already in Default configuration, “nO” will be displayed. Push Next to change it to “YES”
(flashing) then push Enter to confirm the change (solid) and push Enter again to return to “dEF” in the con menu. Push Next until “End”
is displayed then push Enter to get back to normal operation.