The dry spring floating ball liquid level controller is matched with the motor starting control device, used to control the liquid level of industrial or civilian water tanks, water tanks, water towers, and various acid-base and liquid storage tanks. It is also suitable for non-conductive liquids and media containing suspended solids.
Characteristics: 1. It can overcome the influence of false liquid level on detection.
2. Large internal contact area, protected by inert gas.
3. Can disconnect high voltage and high current loads without sparking.
4. Small contact erosion and long working life.
5. Six control schemes applicable to different control systems.
Working principle: The magnetic float moves up and down along the measuring tube with the measured liquid level. Its magnet causes the reed switch at the corresponding position in the tube to switch instantly, outputting the corresponding position contact signal. When combined with the corresponding control circuit, it can complete the automatic control of the liquid injection or extraction pump, so that the liquid level is controlled within the specified range.
The position contact signal, in conjunction with the alarm circuit, can be used for alarming and controlling dangerous liquid levels (exceeding upper and lower limits).