Bosch 520 Series - Performance Features

6 en | Product Description Automatic Detectors LSN improved
2019.11 | 4.0 | F.01U.025.877 Operation Guide Bosch Sicherheitssysteme GmbH
- FAA-500-BB Ceiling Mount Back Box
- FAA-500-CB Built-in Housing for concrete ceilings
- FAA-500-SB-H Surface Mount Back Box with damp room seal
Service Accessories:
- FAA-500-RTL Detector Exchanger for 500 and 520 Series Detectors
- FAA-500-TTL Test Adapter with Magnet for 500 and 520 Series Detectors
1.1 Performance Features
– Fulfills the highest aesthetic demands through the flush-mounting design and the
possibility of color toning
– Smooth, easily-cleaned detector surface
– Quick and easy insertion and exchange of the detector thanks to innovative detector
locking mechanism (click and lock principle)
– Easily-visible two-color LED for display of alarm, trouble and test mode
– Self-monitoring of the sensors, with display on the fire panel:
– Fault indication upon failure of the evaluation electronics or one of the LEDs of the
optical sensor
– Three-stage contamination display (analog value can be read out at service)
– Fault indication in the case of heavy contamination (instead of false alarm)
– Fault indication in the case of CO sensor failure (for the FAP‑OC520)
– Thanks to integrated isolators, the LSN loop will continue to function in case of wire
interruption or short-circuit of a detector
– Active adjustment of the threshold (drift compensation) if the optical sensor becomes
contaminated
– Active adjustment of the threshold (drift compensation) of the chemical sensor
– Increased detection and false alarm immunity thanks to evaluation of the time behavior of
fire and disturbance variables
– Programmable sensitivity, i.e. can be adjusted to the area of operation
– Flexible network structures, including T‑taping without additional elements
– Automatic or manual address allocation with or without auto‑detection via integrated
rotary switches
– Detector individual identification on the fire panel in the case of alarm
– A pre‑alarm is signaled when 50% of alarm threshold is reached (indicator in the event
database of the fire panel).
– Serial number, contamination level, operating hours and current analog values can be
read out from each configured detector
– Activation of an external detector alarm display is possible (not for relay bases)
– Activation of external devices by the relay base is possible
– Easily‑accessible connection terminals
– Service accessories for simple and comfortable detector test and exchange
– When using the FAA‑500‑TTL test adapter, an integrated reed switch automatically
switches the detector into the test mode.
– Can be connected to the LSN fire panels FPA‑1200, FPA‑5000, BZ500LSN,
UEZ2000LSN, UGM2020 and to other fire panels or their receiver modules with identical
connection conditions.
– EN54-7 and EN54-17 certified