Initial Alarm Indications
After power‐up and immediately following the recall of a stored setup, the MR400 provides an
indication of the alarm volume by sounding the alarm tone at its currently adjusted setting for 5
seconds and displaying Check Alarm Volume.
After power‐up, the initial alarm state is paused and then, following a wait period of 120 seconds,
armed becomes the normal alarm state (as indicated by the displayed symbol, shown in the table
In the armed state:
3‐10 Getting Started Expression MR400 Instructions for Use
Remove as Default button removes the file as the default user
Delete Settings button deletes the file.
An alarm will sound while an alarm condition exists, provided that any pre‐alarm wait
period has expired and the alarm audio armed symbol is displayed.
Alarm Sound State
Alarm audio armed
Alarm audio paused
Alarm audio off