Smoke Alarm User Manual

Installation, Operation and Maintenance Manual
Issue 1 Page 3-3
February 2001
On system power up the System Status Screen is displayed.
This display is shown during the system’s “quiescent state”.
If the status of the system is anything other than Normal then the respective status will be displayed
instead, e.g. TROUBLE or ALARM.
The Display Module shows, in textual form, the current system status: -
PRE-ALARM 1
PRE-ALARM 2 These system status conditions indicate that the current smoke
ALARM 1 level has reached one of the pre-configured alarm levels.
ALARM 2
TROUBLE This indicates that a trouble condition exists i.e. Airflow, Power
Supply Unit (PSU), CPU or Detector.
ISOLATE This status condition indicates that the system is disabled in
communicating Alarm, Pre-Alarm or Trouble conditions.
TEST Test will be displayed whenever the system is set into test by an
operator.
From the Normal display screen the operator is able to access the smoke display (only when the status
display is showing NORMAL) by pressing any key (any cursor control or ENTER (↵) key).
The smoke display indicates by means of a bar graph the smoke
level currently being detected. Additionally both the current
Alarms and Pre-Alarms settings are displayed. The smoke level
displayed is a value in the range 0% to 100%.