LS-726 liquid level sensor for refrigerant

NegotiableUpdate on 04/05

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Nature of the Manufacturer: Producers

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Overview

LS-726 liquid level sensor for refrigerant

Product Details

I. Overview

The liquid level switch is mainly composed of a guide rod with a built-in reed switch and a float with magnetic steel. When the float rises or falls with the measured liquid level/interface, the magnetic field generated by the permanent magnet inside the float drives the reed switch to act, achieving the switching action. Due to the fact that the reed switch contacts are completely sealed in glass filled with inert gas, no electrical sparks are generated when the contacts are turned on or off, making the control quite safe. It has a compact structure, high reliability and stability, simple adjustment, easy installation, long service life, explosion-proof, corrosion-resistant and other characteristics.

2、 Product features and applications

Features:

1. The reed switch contacts are completely sealed in glass filled with inert gas, making the control quite safe;

2. It has a compact structure, high reliability and stability;

3. Easy to adjust and convenient to install;

4. Long service life, explosion-proof, and corrosion-resistant.

Application:

1. The float level control switch is used for measuring the liquid level of open and pressurized containers for media such as oil, water, sewage, acid, alkali, etc. in industries such as civil construction, sewage treatment, and water purification. Control the addition (discharge) of liquid and the upper and lower limit alarm, or automatically start and stop the pump to achieve unmanned automatic monitoring of drainage and ensure pump safety.

2. Liquid level switches are applied in various fields such as household appliances, including fully automatic washing machines, water dispensers, water boilers, dishwashers, household and commercial electric heaters, and medicinal liquids. They transmit signals remotely to sealed containers, storage tanks, open containers, pools, and other containers for on-site indication and liquid level monitoring. They control the liquid level by controlling the start and stop of pumps or valve switches, or by triggering high and low liquid level alarms.

3. Liquid level switch is a telecommunication control device used for the liquid level height of automobiles and industrial equipment. When the liquid level reaches the set high and low positions, the electrical contacts of the liquid level switch open or close. By connecting it to the electrical circuit, it can achieve signal alarm or control of the filling (discharging) solenoid valve and electric pump, thus achieving the purpose of controlling the liquid level.

4. Widely used in industrial steel rolling workshops. It mainly consists of sedimentation tank, sewage suction well, filter, purified water suction well, water pump, and dosing equipment. The equipment that needs to be monitored mainly includes suction wells (water level), water pumps, inlet and outlet pipelines (water pressure, water flow rate, water temperature), filters, safety water towers, and other equipment.

5. Protection against refrigerant overflow caused by overfilling of agricultural equipment, refrigeration equipment, cooling water heaters, and refrigeration tanks.

6. Applied to drinking water and water treatment, it controls the operation of water pumps or solenoid valves according to changes in water level, providing signals for conduction and closure.

3、 Technical parameters

project	Parameters
Installation direction	vertical installation
connection method	American standard connector G1/4 "
Switch type	normally closed
Action point	90±3mm
Float specifications	Φ 22.5 * 27.5 * Φ 15.6 floating ball
Guide rod material	H59 copper
Floating ball material	PTFE
precision	±3mm
Working Voltage	250Vac，200Vdc
contact resistance	120mΩ（Max）
Contact power	50W
Container pressure	1.8Mpa；
medium temperature	room temperature
Liquid specific gravity	0.55～1.0
Extreme position	Deviation from center by 20 °
Protection level	IP55
impact resistance	30G Min
Vibration resistance	33Hz～2500Hz
Switch lifespan	1 million times

4、 Installation, use and precautions

1. Rotate the switch in the designated direction according to the end face markings to ensure that the side mounted floating ball rotates flexibly up and down;

For single point liquid level switches, N.O or N.C switch forms can be converted by inverting the float end face. LSAZ side mounted liquid level switch, in N.O or N.C switch form, can be switched by rotating the switch 180 ° according to the end face mark.