24
First-out alarm
indication
The first-out alarm indication is a feature of the
annunciator unit which means that the first
alarm channel to start after a reset is indicated
with a letter A and the channel number in the
four-digit display.
Channel 1
Channel 2
Channel 3
Channel 16
First-out
alarm
memory
Reset
Digital display
Not used
Type of event
A = incoming alarm
Channel number
1...16
Fig. 27. Principle of the first-out alarm indication.
The first-out alarm indication is removed from the display with the acknowledge/ reset push-button.
To Next Page
Loading...
