FAP-425-DO-R | Bosch AVENAR detector 4000 Dual-Optical Smoke Detector
Addressable dual-optical smoke detection with intelligent signal processing
The FAP-425-DO-R belongs to Bosch's AVENAR detector 4000 series of automatic fire detectors, which combine up to three sensing principles (optical, dual-optical, thermal and CO). The dual-optical version uses two optical sensors to detect even the lightest smoke while suppressing deceptive phenomena. All sensor signals are continuously analysed by Intelligent Signal Processing (ISP) electronics and linked via an inbuilt microprocessor. The detector is manually and automatically addressable and supports up to 254 LSN improved elements per loop or stub line.
Brand: Bosch · Category: Fire Detection
Key features
- Intelligent Signal Processing (ISP)
- Detects lightest smoke via dual optical sensors
- Built-in loop isolators
- Automatic or manual addressing
- Drift compensation and contamination monitoring
Specifications
| Detection principle | Dual-optical smoke sensing |
|---|---|
| Operating voltage | 15–33 VDC (LSN) |
| Current consumption | 0.55 mA |
| Elements per loop | Up to 254 LSN improved elements |
| Permissible air speed | 20 m/s |
| Addressing | Manual (rotary switches) or automatic |
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