When using the alarm, have you ever encountered the phenomenon of false alarm or false alarm? There may be some people who have encountered it. So what is the reason for this phenomenon? What are the main reasons for infrared detection alarms to cause false positives and false negatives?
In order to prevent fires, many families install smoke alarms to monitor the concentration of smoke to achieve fire warning. But in daily life, many people will find false alarms in their home smoke alarms.
What is the principle of the coal plug switch? The principle is that the pressure of the gas is too large, the pressure of the hot water is small, and the water will not pass.
Microwave Flow Switch - Reliable, non-contact microwave flow detector for a wide range of bulk materials Measurement principle The microwave flow switch is a microwave motion detector that utilizes the Doppler effect.
The working principle of the belt tear switch protection device utilizes the principle of electromagnetic induction, and the receiver receives the electromagnetic pulse signal generated by the generator through the sensing coil.
1. The deviation switch is arranged on both sides of the conveyor belt, and the vertical roller should be perpendicular to the plane of the conveyor belt, and the two sides of the conveyor belt are located at 1/3 of the height of the vertical roller.
The slip switch is used to detect the slip between the running belt and the active roller of the belt conveyor.
When using a gas leak alarm, what are the special considerations that need our attention? Some people may be unfamiliar with this content, but today Xiaobian will come to talk to you. Once the gas leak alarm is installed in place, its position is not easy to change. The following points should be considered for specific applications.
