Delay Time Of The Alarm Triggering; Activation Threshold Of The Airflow Monitoring; Delay Time For An Airflow Malfunction; Fault Indication - Bosch FCS-320-TM Operation Manual

FCS-320-TM Aspirating Smoke Detector
4.5.2

Delay Time of the Alarm Triggering

The default delay time for the alarm threshold can be changed via the diagnostic software.
The default delay time for the alarm is set to 10 s. If the smoke level increases during
operation until it reaches the alarm threshold, the delay time starts to count down. The
message is transmitted only after the delay time has expired and the smoke level remains at
its current level. In this way, deceptive alarms due to brief strains (e.g. dust) can be
prevented.
Detection unit
NOTICE!
The alarm delay time should be set to 0 seconds for test purposes only.
4.5.3

Activation threshold of the airflow monitoring

The activation threshold for an airflow problem can be changed for the detection unit via the
FAS-ASD-DIAG.
Detection unit
Select the activation threshold in line with Section 3 Planning, page 31.
4.5.4

Delay time for an airflow malfunction

If you wish to change the delay time for transmitting the signal for an airflow malfunction, this
is possible via the FAS-ASD-DIAG.
Detection unit
The default delay time is set to 100 seconds. In areas with time-limited disturbance variables
(e.g. air pressure fluctuations), other delay times should be set based on the duration of the
disturbance variables.
4.5.5

Fault Indication

The collective fault display (airflow and detection unit malfunction) can be set to log or not to
log (default) trouble messages. Activation or deactivation is possible via the diagnostic
software.
Detection unit
4.5.6

Dynamic airflow

Activation or deactivation of dynamic airflow is possible via the diagnostic software.
Detection unit
4.5.7 ROOM·IDENT
Activation or deactivation of fire source identification is possible via the diagnostic software.
Bosch Sicherheitssysteme GmbH
Alarm delay
0 s - 60 s
Activation
threshold
10% - 50%
Fault delay
1 s - 60 min
Log trouble
off - on
Dynamic airflow
off - on
Operation Guide
Installing the Aspirating Smoke Detector | en
Alarm delay (default)
10 s
Activation threshold
(default)
20%
Fault delay (default)
100 s
Do not save trouble messages
(default)
off
Dynamic airflow (default)
off
F.01U.130.928 | 1.0 | 2009.11
63
Setting intervals
1 s
Setting intervals
1 %
Setting intervals
1 s