The main technical indexes of fire temperature sensing detector

The choice of a fire alarm, the mainly depends on its main specifications and performance characteristics, this is the user design, installation, use and maintenance of the most important reference. The main technical indexes of temperature sensing fire detector has the following points.

Sensitivity

The sensitivity of the constant temperature and temperature sensing alarm, said its sensitivity to the calibration of temperature alarm value. The differential temperature temperature alarm, that the calibration of the temperature rise rate sensitive degree. Common temperature sensitive fire detectors are divided into 1,2,3 three grades, respectively, with green, yellow and red to mark. In general, for the same calibration temperature, if the temperature reached the calibration value, higher sensitivity of the alarm action time is shorter, can more quickly issued a warning signal. So according to the users need to install applications, select the appropriate sensitivity temperature alarm, so as to avoid false alarm or alarm delays.

Effective protection area

Effective protection area represents a temperature detector in the open condition, the maximum area can be monitored by. The data largely determines the users need to use the number of detectors and networking mode. Notable is, in practical application, because can´t reach the open condition, and the detector installation location, installation height and angle, will affect the protection area, so the actual protection general area detector can effectively than small protection area.

Energy supply

In order to supply power and foreign fire alarm equipment are unified, the provisions of the state working voltage temperature detector is DC24V+10%, the maximum current alarm is generally not more than 100mA. Domestic manufacturers of the temperature sensing alarm generally support the 9V-24V DC power supply mode, which greatly improve the compatibility of the alarm.

The work environment requirements

A temperature sensor alarm is a very sensitive components, are susceptible to environmental conditions. Two of the most important environmental factor is temperature and humidity, the general heat detector with low temperature resistance type and ordinary type two kinds of environmental temperature, relative humidity corresponding not more than 90% and 95% respectively.

The main technical indicators above is the fire temperature detector, a user must be according to the characteristics of the installation site, to the selection of the appropriate type of detector.