Water level controller with two detecting lines

Abstract

The invention relates to a water level controller with two detecting lines. The water level controller consists of a direct current (DC) power supply, an exploring electrode circuit, a Schmidt triggering circuit, a working condition indicating circuit, a relay J and a control circuit. For an originally introduced product, a water tower can automatically control water drawing, and a circuit of the product needs three or more than three water level detecting signal lines. As the water tower or a water tank is further away from a water pump, in order to save line materials and reduce wiring trouble, the water level controller with the two detecting lines only adopts two detecting signal lines to form a water level automatic-control circuit with three detecting electrodes so as to control the operation of the water pump. As the number of the detecting signal lines of the circuit is reduced, the detecting lines are convenient to maintain, thereby improving the stability and the reliability of circuit operation; and compared with the like products, the water level controller has the characteristics of good generality, high reliability and the like and is simple and convenient to install and use.

Description

technical field [0001] The invention belongs to the technical field of electronic control, and relates to a water level controller using two detection lines. Background technique [0002] As a water storage facility, water towers are widely used in urban small high-rise water storage or secondary pressurized water supply, used in rural household domestic water or agricultural irrigation water, and also suitable for automatic control or liquid level control of water towers, water tanks, sinks, etc. in industrial and mining enterprises. Bit alarm, the controlled medium can be clean water or domestic sewage or conductive solution. In order to avoid the occurrence of liquid overflow and empty pumping, and to save power resources, many water towers still use manual methods to start pumping water, which is often difficult to achieve timely and accurate control, and is time-consuming and laborious. Most of the water tower automatic control pumping products introduced in the past n...

AI Technical Summary

Problems solved by technology

In order to avoid the occurrence of liquid overflow and empty pumping, and to save power resources, many water towers still use manual pumps to pump water, which is often difficult to achieve timely and accurate control, and is time-consuming and laborious.

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