How do I activate the built-in self-test feature of the Brasch GSE and Onguard models?
A. The Brasch Onguard and GSE stand-alone detectors contain a feature which tests all detector functions except for the sensor’s response to the target gas. If the ALM OFF/SELF-TEST front panel switch is pressed within five minutes after power is applied, the detector will perform the self-test function. The ventilation fans can be actuated by this self-test feature if the fan is supplied with the proper operating voltage. For a complete description of the self-test feature, please read the Instruction/Operation manual.
