Bosch FAS-420-TT2 - Connecting an External Detector Alarm Display; Data Logging

Aspiration smoke detector LSN improved Installing the Aspiration smoke detector | en 83
Bosch Sicherheitssysteme GmbH Operation guide 2020.04 | 6.1 | F.01U.029.275
Detector
module
Sensitivity Further
sensitivity
0.06%/m (0.2%/m) 0.4%/m (1%/m) Adjustable
sensitivity
levels)
0.12%/m (0.4%/m) 0.8%/m (2%/m)
Activation threshold for airflow malfunction Alarm delay
Low (+/- 10% volume flow change) 0 seconds
Average (+/- 20% volume flow change) 10 seconds
High (+/- 30% volume flow change) 30 seconds
Very high (+/- 50% volume flow change) 60 seconds
Airflow fault delay LOGIC·SENS filter
30 seconds Off
2 minutes On
15 minutes
60 minutes
Notice!
When the fire panel is in revision mode, the LOGIC·SENS is temporarily deactivated, allowing
the detector modules to be checked quickly and directly.
The sensitivity value is based on measurements with standard test fires (old value in
brackets).The activation threshold for the airflow malfunction is set to 20% volume flow
change by default. Higher values are not permitted within EN54‑20 or ISO 7240-20.
5.6 Connecting an External Detector Alarm Display
A digital external detector alarm display can be connected to the FAS-420 series aspirating
smoke detectors. This is available by separate order.
Connect the remote indicator to the motherboard of the FAS-420 using the terminal strip X6.
The unit must be in a voltage-free state for this.
Alternatively, FNS‑420‑RLSN Strobes can be connected via LSN and configured via
FSP‑5000‑RPS.
5.7 Data Logging
The FAS‑ASD‑DIAG Diagnostic Software is used to conduct the device tests.
The current airflow sensor data, smoke level values, various status values and the parameters
configured via the programming software can be read out locally using a laptop. This makes it
much easier to detect altered operation conditions in the event of service being carried out.