47
Forcing a Channel Input
During commissioning it is often required to check that the programmed alarm setup responds
correctly. Rather than having to introduce calibration gas or use a signal generator to simulate a
programmed input the controller can be used to ‘Force’ an input. Select the Production Menu and
then the ‘Sensor Force’ option.
Select the channel to force and then enter the required value. With the correct channel and
value displayed, selecting enter will force that level onto the selected channel for
30
seconds.
This allows testing of the alarm configuration without having to use test gas or signal
generators.
Note that the gas detection system is operational in the background whilst you are in the menu
system. Any sensor input that is ‘forced’ will therefore still activate the alarms. If required once a
sensor is forced you can Exit back to the main screen to observe the ‘forced action’ on screen.
