Point type thermal fire detector (A2R)
Product feature
1.Built-in special microprocessor for the fire industry, the detector to store and analyze the data collected by itself, and has the function of self-diagnosis;
2.Constant temperature and temperature difference alarm function;
3.Glass enclosed temperature resistor, fast response to temperature;
4.With real-time output temperature function, you can view the temperature curve of the scene through the controller;
5.High stability, anti-static, anti-dust adhesion, anti-electromagnetic interference, anti-corrosion;
6.Strong resistance to humidity and environmental temperature, can adapt to the requirements of different climate environment;
7.SMT surface mounting technology, using light guide column;
8.The appearance design is beautiful and generous.
Scope of application
High relative humidity, smokeless fire may occur, often have a large amount of dust environment;
An environment where smoke and steam are normally trapped;
Kitchen, boiler room, tea furnace room, power room, drying workshop, etc.;
Indoor garage, smoking room, etc.;
Other halls and public places where smoke detectors should not be installed.
Working principle
The temperature detector consists of thermistor and corresponding amplifying circuit. Thermistor is a semiconductor resistor with temperature sensitivity. The resistance value changes with the temperature. When the temperature reaches the set alarm threshold, the circuit will send an alarm signal.
Performance parameter
Environmental characteristics
Operating temperature: -10 ~ +50℃
Storage temperature: -20 ~ +65℃
Relative humidity: ≤95% (no condensation)
Electrical characteristics
Working voltage: DC24V (DC19V~DC27V) modulation type, provided by the controller.
Monitoring current: ≤0.3mA (DC24V)
Alarm current: ≤ 1mA (DC24V)
Confirm the monitoring state of the light and the alarm is on (red).
Communication characteristic
Wire system: two-wire system (non-polar)
The address range is 1 to 200.
Addressing mode: electronic encoder
The maximum transmission distance is 1000m.
Mechanical characteristics
Appearance: PANTONE Warm Gray 1 C off-white
Case material: ABS
Product quality: 69.5g
Dimensions: Φ100mm ×H 41mm (including base)
Detection characteristic
Protection area: 20-30m square meters
