Water level alarm refers to the water level alarm through the mechanical or magnetic induction method, can sound and light alarm or magnetic alarm at the same time to control the start or stop of the water pump and other equipment, there are a variety of methods, according to the selection of different products and different.
1. The principle of electronic water level switch is to detect the water level through the electronic probe, and then process the detected signal by the special chip for water level detection. When the measured liquid reaches the action point, the output high or low level signal, combined with the water level controller, output relay switch signal, or direct power supply to the alarm, so as to realize the alarm function of the liquid level. Electronic water level switch does not need floating ball and dry spring clarinet, external no mechanical action, durable, not afraid of the influence of floating objects, any Angle installation, vertical installation has a certain anti-wave function, this way is more practical, pollution resistance, long life, safety. It has two alarm methods: ultra-low water level alarm and ultra-high water level alarm.
2. Conduct water level alarm through the floating ball switch. This kind of floating ball has plastic / stainless steel, through the internal floating water level with the ring magnet floating ball at any time to attract the magnetic spring switch inside the rod with the dry clarinet, the switch alarm signal, can be high temperature resistant, acid and alkali corrosion resistance, widely used in water treatment, chemical industry, household appliances, machinery and equipment, electronic industry. Now it has been developed to flange installation, wire port connection, cable floating ball valve, stainless steel current floating ball, plastic floating ball, KEY plastic cable floating ball, proximity switch, door magnetic switch, magnetic spring relay, etc.
