Both Ax60 and Ax60+ systems have latched alarms as standard. The Ax60+ has the option of disabling alarm latching. It is our hope that the following information will help to avoid confusion when silencing and acknowledging alarms.


Latched Alarms

These will not clear unless acknowledged. For example, if the target gas level increases beyond the alarm threshold, the device will go into alarm and remain like this until the alarm has been acknowledged.


Non-Latched Alarms

These will clear without acknowledgement. For example, if the target gas level increases beyond the alarm threshold, the unit will go into alarm but once the gas returns to safe limits the alarm automatically clears.


Both Latched and Non-Latched alarms can be muted with a single press of the Accept/Test button, but in order to acknowledge a latched alarm the user must first cycle through the display until an '*' is seen, then press and hold the Accept/Test button for 3 seconds (resulting in the '*' changing into a '>'.


The video below shows an example of muting and acknowledging a latched alarm