SW-5 water level controller supplied by Xi'an Dingxing

< )r, an overview
: r, water level controller, consists of two parts: display and control instrument and sensor. The measured medium is conductive and non-conductive liquids such as water, oil, acid, alkali, industrial sewage, etc. Water level controllers are widely used in automatic control systems in petrochemical power stations, metallurgy, light industry, pharmaceuticals, paper, food, water plants, sewage treatment and other fields. They mainly measure and remotely control the media in a variety of open and closed containers and underground pools. And can monitor and display alarms in the central control room or instrument console.
: r , )2
) Technical characteristics
: r , primary sensor
: r , composed of float detection tube flange and junction box etc.
: r , Measuring range: type, type.
: r , cannot be less than.
: r, working temperature: type: ℃ ~ ℃, type: ℃ ~ ℃, if the temperature is higher than the above, it needs to be customized.
: r, working pressure: type:, type:, type normal pressure, if it is greater than the above value, it can be customized.
: r, the density of the measured medium/.
: r, viscosity of the measured medium ().
: r, the detection tube is generally made of stainless steel (r) or polytetrafluoroethylene (or) for anti-corrosion applications.
: r, the float ball is made of stainless steel (r) ball, and is used in anti-corrosion situations with a protective layer of polytetrafluoroethylene (or). The diameter of the plastic float is , and the diameter of the float is .
: r , ) Three working principles

: r , The sensor of the water level controller is installed vertically in the liquid to be measured. Under the action of the buoyancy of the liquid, a floating ball with magnetic steel inside , displacement occurs as the liquid level changes. The magnetic field of the magnet acts on the wet (dry) reed switch in the sensor detection tube, causing its contacts to close or disconnect, resulting in a change in the sensor output resistance. The change in resistance is converted into the corresponding light-emitting diode lighting up and off through the display meter, thereby simulating the change in the level of the measured liquid. When the liquid level is between the two wet (dry) reed tubes, it does not pull in, and the display meter remains The previous position until the next wet (dry) reed pipe moves to ensure that there is no dark area.
: r, the liquid level alarm point is preset. When the liquid level reaches the predetermined set point, the relay in the display meter acts. Through the on and off of the relay contacts, the corresponding upper and lower limit alarm signals and Output control signals to realize automation of liquid level display and control.