Dräger Flame 2000 Notice D'utilisation page 14

en Use
Possible alarm delay settings
The flame detector is equipped with an alarm delay option. It can be
set to one of the following options:
Antiflare (A, default)

The antiflare mode is selected to prevent false alarms in locations
where fast flares may be present. The time delay for fire alarms in
this mode is calculated by the detector software and ranges from
2.5 to 15 seconds (usually less than 10 seconds).
or
0, 3, 5, 10, 15, 20 or 30 seconds

When an alarm threshold condition occurs, the flame detector delays
the execution of the alarm outputs by the specified period of time. The
flame detector then evaluates the condition for 3 seconds. If the alarm
threshold condition is still present, the alarm outputs are activated. If
the alarm threshold condition no longer exists, the flame detector
returns to its standby state.
The alarm delay option affects alarm relay, fault relay, and 0-20 mA
output. The status LED and outputs indicate warnings during the delay
time. When the delay time has passed, status LED and outputs
indicate the alarm.
Possible address setups
A system with up to 247 addresses can be configured.
14
Possible modes of operations
Function Setting
Alarm Latch YES: Enable alarm latching.

NO: Disable alarm latching (default).

1)
Automatic BIT YES: Perform automatic & manual BIT

(default).
NO: Perform manual BIT only.

1)
Alarm BIT YES: Successful manual BIT activates

the alarm relay for approximately
3 seconds (default).
NO: Successful manual BIT does not

activate the alarm relay.
2)
Auxiliary Relay YES: Activate auxiliary relay at warning

level.
NO: Activate auxiliary relay at alarm

threshold (default).
(The auxiliary relay is latched only when the
programmable function Auxiliary Relay is
set to YES.)
1, 2)
Auxiliary BIT YES: Successful manual BIT activates

the auxiliary relay for approximately
3 seconds (default).
NO: Successful manual BIT does not

activate the auxiliary relay
1) not applicable for Dräger Flame 2570
2) only available in wiring option 4 and 5