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Company address:3/floor production cencer No.58 industrial second road, national.civil aerospace industry base,  Xi'an, Shaanxi province.
Postcode: 710100
Email:1544223125@qq.com
Contact phone: 86-029-88452932
Mobile telephone:18092305062
Fax number: 86-029-88454310


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What are the causes of smoke detector misreporting

Date of release:(2019-01-05)   Click times:773

In the fire industry for several years, the most common problems reported by customers are smoke detector false alarm and fire circuit board failure. Today, xi 'an van eram electronics co., ltd. explains the reason for the false alarm.

The main reasons for smoke false alarm are: when the environmental parameters (such as dust, fog, etc.) change greatly, the detector cannot be automatically adjusted, and eventually false alarm will be generated.

Below, we will look at the causes of smoke false alarm from the development stage of the detector:

The first generation of detector belongs to the "single threshold" detector. There are smoke and temperature sensors in the detector.

The second generation of analog quantity detector belongs to the "multi-threshold" detector. There are smoke and temperature sensors in the detector. When the ambient temperature and smoke concentration exceed a certain value (the first threshold), it will send the switching quantity fire alarm control signal to the controller to give an early warning.


Although the second-generation detector greatly reduces the false alarm rate, its precision has been set as a fixed value in the hardware, which cannot be adjusted in use. It is easy to be affected by the operating environment and generate fire false alarm, and will trigger the false action of fire fighting equipment, causing losses to users.

The third generation of intelligent detector has greatly reduced the false alarm rate, in general, there will be no false alarm. The third generation of intelligent detector is embedded with CPU and data acquisition circuit, which can monitor the continuous change process of temperature or smoke, automatically adapt to environmental changes, and reduce the fire false alarm caused by rapid changes in the environment.

The main brands of the third generation of intelligent detector are Siemens, nortifer, etc., and the domestic brands are xinwo.



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Company address:3/floor production cencer No.58 industrial second road, national.civil aerospace industry base,_ Xi'an, Shaanxi province.
Postcode: 710100
Contact phone: 86-029-88452932
Email:1544223125@qq.com
Mobile telephone:18092305062      Fax number: 86-029-88454310
Copyright@2018 Xi'an van lag Electronics Co., Ltd.      Record number: Shaanxi ICP 18008942-1
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