What Are The Common Types Of Fire Alarm Circuit Boards?
Fire alarm circuit boards can be classified into several common types based on the type and function of the detector:
1. Classification based on the type of detector
Smoke-sensitive fire alarm circuit boards
Smoke detectors are used in smoke-sensing fire alarm circuit boards to detect fires. When smoke invades the inside of the detector, it changes the optical or ionization characteristics of the detector, thereby triggering the alarm circuit. This type of circuit board is particularly sensitive to early fire reactions.
Fire alarm circuit boards for temperature sensing
Thermal fire alarm circuit boards use temperature sensors to detect fires. When the temperature of the external environment rises to a predetermined limit, the temperature sensor will activate the alarm circuit. This type is particularly suitable for environments that need to monitor temperature fluctuations for fires.
Photosensitive fire alarm circuit boards
Photosensitive fire alarm circuit boards detect fires through flame detectors. When the detector captures the light released by the flame, the alarm circuit will be activated. This type of circuit board reacts very quickly to open flames.
Fire alarm circuit boards for detecting combustible gases
Combustible gas detection fire alarm circuit boards detect fires by using combustible gas detectors. When the concentration of combustible gas rises to a dangerous level, the detector will activate its alarm system. This type is particularly suitable for occasions where combustible gas leaks need to be detected.
2. Classification according to its function
Intelligent fire alarm circuit board
Intelligent fire alarm circuit boards not only have basic fire detection and alarm functions, but are also equipped with advanced functions such as automatic diagnosis and remote monitoring. This type of circuit board is often combined with other intelligent tools or systems to achieve higher fire monitoring and management efficiency.
Fire alarm circuit board composed of multiple lines
The multi-line fire alarm circuit board is connected to each detector through multiple wires, and each detector is equipped with its own independent signal line. This type performs better in terms of reliability and flexibility, but its cost is relatively more expensive.
Bus-based fire alarm circuit board
The bus-based fire alarm circuit board can be connected to multiple detectors through one or more buses, thereby realizing centralized signal transmission and processing. The design characteristics of this type are simple wiring and relatively low cost, but in certain specific occasions, signal interference or transmission delay problems may be encountered.
3. Different classifications
Composite fire alarm circuit board
The composite fire alarm circuit board combines the advantages of multiple detectors and can simultaneously detect multiple fire characteristic parameters such as smoke, temperature, flame and combustible gas. This type of fire alarm circuit board performs better in terms of accuracy and stability of fire detection.
Wireless fire alarm circuit board
Wireless fire alarm circuit board uses advanced wireless communication technology to transmit signals, thus avoiding wiring work and making the installation and maintenance process easier. This type of circuit board is particularly suitable for places that require flexible configuration or difficult wiring.
