门磁（Magnetometer）.doc

门磁（Magnetometer） Magnetometer What is the role of a door? Used to detect doors, windows, drawers, etc., are illegally opened or moved. It consists of two parts: wireless transmitter and magnetic block. Two, the common type of magnetometer A, wireless magnetometer 1, working principle The door is composed of wireless transmitter and the magnet two parts, in the wireless transmitting module has two arrows with a steel reed components, and when the magnet steel reed kept at a distance of 1.5 cm when the steel reed is off, once the magnet and steel reed separation distance of more than 1.5 cm when the steel tube will be closed, causing a short circuit, alarm indicator lights and alarm signal transmitted to a host. 2, guard position (1) gate (2) drawer (3) safe (4) window 3, installation notes Are the A and IC encoding correct? B, try to shorten the distance with the host Dont try to C, and a host of reinforced concrete wall and appliances The location of the D and the installation must be avoided in the rain and damp places 4 、 Analysis and treatment of common troubles A, the host can not receive the alarm signal of the magnetometer (1) check the IC encoding is correct (2) between the host and the distance of magnetic inspection (3) check the battery for electrical or battery button connection is paragraph (4) check the installation of the environment around the door (5) check whether the damaged magnetic circuit board B indicator, the magnetometer is dark or light is not long off (1) check whether the welding spot on the circuit board is loose or fall off (2) check the battery power (3) check the circuit board for damage C, try to place the launcher on the door frame and place the magnet on the door to reduce the vibration of the launcher and cause it to fall off B, wireless gate magnetic 1, working principle Magnetic roll gate is composed of wireless transmitting sensors, metal and metal magnet steel tube three parts, metal steel reed and the wireless transmitting sen