Featured Products and Technologies

Fire detectors have to be extremely reliable. This includes the ability to dependably detect signs of fire very early and operate under all environmental conditions. Bosch fire detectors incorporate sophisticated signal processing capabilities that are optimized for each application.

Incorporating additional sensors that do not rely on smoke is the only way to create a fire detector that is suitable for a wider range of critical applications. The Automatic Fire Detector uses a combination of optical, heat and CO gas detectors to significantly improve its performance under critical environmental conditions.

So there is a wide range of sensor combinations. Choose the optimal combination for your individual requirements.

• Thanks to algorithms and integrated alarm pattern comparison, all Automatic Fire Detectors achieve the highest level of intelligent fire detection
• Drift compensation ensures consistent high responsiveness
• The alert characteristics are programmable to ensure fast, reliable alarms under any room conditions
• Analogue data can be read out for diagnostics (hours of operation, current measurement values of the O, T and C sensors)
• A special blow-free device on the back of the detector enables easy cleaning of the optical chamber
  

The 320 series detectors ensure reliable detection using conventional technology. Through a wide variety of bases it suits the choice of your mounting situation. The two- and four-wire connections allow use in intrusion applications. The different alarm resistances give the option to connect the detectors to virtually any conventional fire panel available on the market.

All models of the 420/320 Series product line apply state-of-the-art methods for second-to-none protection, combined with maximum reliability and easy maintenance. The Automatic Fire Detectors are based on a standardized concept offering numerous advantages for planning, installation and everyday use.

• Thanks to incorporated algorithms and integrated alarm pattern comparison, all Automatic Fire Detectors achieve the highest level of intelligent fire detection.
• Active monitoring of the alert electronics ensures high system reliability.
• Active contamination recognition extends service life. An early warning function with pre-alarms optimizes protection.
• Easy to install, easy cleaning and maintenance
  
  
• The central LED alarm display is visible from any angle, so the base can be installed in any direction.
• Low power consumption.
• The detector housing can be painted.
• Manual or automatic address assignment.

By correct weighting and combining three detector signals while taking account of the different timing of non-fire and fire signals, this detector achieves extremely high noise immunity and detection quality.

Thanks to incorporated algorithms and integrated alarm pattern comparison, all Automatic Fire Detectors achieve the highest level of intelligent fire detection. Drift compensation ensures consistently high responsiveness. The sensitivity settings are programmable to ensure fast, reliable alarms under any room conditions.

The "Optical O"
The Optical O detector is ideal for all standard applications in which early warning of fire situations is a must. Sophisticated signal processing correctly interprets characteristic patterns and time responses of fires, and special analysis functions are integrated to suppress non-fire nuisance signals. This feature alone makes it clearly superior to other commonly used optical detectors.

The "Thermal T"
Accurate detection of temperature fluctuations is the special strength of the Thermal T. It responds when the temperature exceeds a certain threshold, while also taking the rate of rise into account. Various threshold settings can be chosen in compliance with EN54-5.

The "Optical-Thermal OT"
Combining the sophisticated signal processing capabilities of the Optical O detector and temperature sensing, this fire detector delivers failsafe accuracy. Both signals are checked against one another for plausibility, allowing its use in more critical environments.

The "Optical-Thermal-Chemical OTC"
The OTC therefore uses a combination of optical, heat and CO gas detectors to significantly improve its performance under critical environmental conditions. By correct weighting and combining the three signals while taking account of the different timing of non-fire and fire signals, this detector achieves extremely high noise immunity and detection quality.

Also available in conventional technology:
The 320 series comprises optical, heat, combined optical-heat and optical-chemical versions, which, with a choice of mounting bases, suit a variety of applications. Besides small commercial industry, retail stores and institutional fire system installations, .the detector finds also its use as an addition together with intrusion panels or in residential applications.  The different alarm resistances give the option to connect the detectors to virtually any conventional fire panel available on the market.

The 420 series detectors are connected to the fire panel using the LSN improved version. LSN is the standard Bosch technology for both fire and intrusion systems. All other fire peripherals are also connected via the same security bus. Configuring LSN in a loop structure ensures highly reliable operation, also under extreme conditions such as severed wiring or short circuits. The panel always indicates the status of the detectors, which can be individually programmed to suit the environments in which they are installed.

If the detector is contaminated or dirty, service signals are automatically sent to the panel, and analogue values can be read from all sensors to verify the system in-depth. Beside a loop structure, which isolates wiring failures, the LSN improved version also supports stub and tree topologies to accommodate a variety of installation practices.

320 Series for conventional technology and intrusion applications
With the operating voltage range of 8.5 to 30 V DC and the choice of different alarm resistances of 820 Ohms and 470 Ohms, the new 320 series is compatible with Bosch, as well as with third-party and OEM fire panels. Also four wire connection to panels and base sounder connection is supported.  The detector finds also its use as an addition together with intrusion panels or in residential applications.