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  Bosch PB-FCA500E Smoke 4-Wire EOL Base
Bosch PB-FCA500E Smoke 4-Wire EOL Base


Our Price : $45.72

Product Code: PB-FCA500E


The FCP-500 Conventional Flush-mount Detectors are UL Listed, open area photoelectric smoke detectors. Use them with commercial fire protective signaling systems and household fire warning systems (see NFPA 72, the National Fire Alarm Code).

The FCP-500 is available as a photoelectric smoke detector or as a multi-sensor detector with an additional carbon monoxide (CO) sensor. The detectors are ideal for areas where increased levels of dust and fibers are expected. Each type is offered in white or transparent with color inserts.

The FCP-500 series smoke detectors satisfy the most demanding aesthetic requirements. Their ultra-low profile design offers flush ceiling mounting. The detectors and covers in the P versions are supplied with reversible printed color rings in 32 colors for individual color matching.

Sensor Technology and Signal Processing:

All detectors in the FCP-500 series are equipped with two optical sensors and a contamination sensor. The FCP-500-C multi-sensor detector also has a CO sensor. All sensor signals are constantly analyzed by the internal signal electronics through specially developed algorithms. Multiple criteria optical sensors with the CO sensor results in an extremely high tolerance to unwanted alarms. Consequently, the detector can be used in areas with small amounts of non fire-related smoke, steam, or dust.

Optical (Smoke) Sensor (all models):

The optical sensor operates according to the scattered light method. The LEDs transmit pulsed infrared light at a defined angle into the scattered light area. If a fire occurs, the light is scattered by the smoke particles and strikes the photo diodes that transform the quantity of light into a proportional electrical signal. Interference effects from daylight and lighting sources are filtered out with an optical daylight filter and by using electronic filtering and rectification algorithms.

The detector's various diodes (infrared and photo) are individually controlled by the detector's electronics. Independent signal combinations are produced that are ideal for detecting smoke. This makes it possible to differentiate between smoke and interference agents (insects, objects). In addition, the detector's algorithm checks the plausibility of the timing and correlation of sensor signals. This makes it possible to detect errors in the signal electronics or the LEDs.

CO sensor (C models only):

Note The CO sensor is for detection enhancement only. It is not a CO detector and cannot activate an alarm in the presence of CO only.

Without the presence of CO, the smoke sensor is half as sensitive to smoke as a standard commercial photoelectric smoke detector. This reduces false alarms. When the sensor detects CO, the detection chamber's sensitivity to smoke increases so it is equal to that of a standard commercial photoelectric smoke chamber.

Contamination Sensor (all models):

The degree of contamination on the detector surface or a blockage of the detector is continually measured by the contamination (antimask) sensor. Heavy contamination of the detector surface or a blockage causes a fault indication.
  • Modern, ultra-low profile design
  • Color inserts match the surrounding decor
  • Smooth, easily-cleaned detector surface
  • Innovative retention mechanism
  • High reliability
  • Four-wire technology
  • Compatible with 12 VDC or 24 VDC systems
  • 30 ft (9 m) spacing between detectors
  • Optional carbon monoxide (CO) sensor for false alarm reduction
  • Dual color LED

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