Frost-proof magnetic turning plate level gauge

• 

I. Product Overview: ZW-UHZ-51S series frost-proof magnetic tumbler level gauge is suitable for mea…

I. Product Overview:

ZW-UHZ-51S series frost-proof magnetic tumbler level gauge is suitable for measuring liquid level in low temperature medium below 0 C. Frost-proof plate and propylene-based protective film are installed in front of the glass shield of liquid level display. The height of liquid level of cryogenic medium can be clearly observed through the frost-proof plate. It is a special level gauge specially designed for the measurement of liquid level in the special environment of frost fog formation at low temperature. It is manufactured by vacuum isolation principle and applied to the measurement and control of liquid level in the low temperature environment such as refrigerant measurement.

II. Working Principle:

ZW-UHZ-51S series frost-proof magnetic tilting plate level gauge is based on Archimedes theorem. The buoyancy and gravity balance generated by magnetic float in the level gauge float on the liquid surface. When the liquid level in the vessel under test rises and falls, the float in the main pipe of the level gauge rises and falls accordingly. The * magnetic steel in the float flips 180 degrees through the red and white tilting column in the magnetic coupling drive indicator. When the liquid level rises, The turning column changes from white to red. When the liquid level drops, the turning column changes from red to white. The actual height of the medium liquid level in the container is at the junction of red and white of the indicator. With the electronic module and transmitter module composed of sensors (magnetic spring switch) and precise electronic components, the output resistance value signal, current value (4-20mA) signal, switch signal and other electrical signals can be transmitted. Thus the perfect combination of field observation and remote liquid level indication, detection, control and recording can be realized.

3. Application occasions:

ZW-UHZ-51S series frost-proof magnetic tilting plate level gauge can be used in conjunction with level control switch and liquid level remote transmission device to control and display liquid level remotely. It is widely used in liquid level measurement and control in power, petroleum, chemical, metallurgical, environmental protection, shipbuilding, food and other industries.

Fourth, main characteristics:

1. Suitable for measuring liquid level and interface of liquid medium in container. In addition to field instructions, it can also be equipped with remote transmitter, alarm switch and detection function.

2. The direction of the new indicator, intuitive reading, eye-catching and observation indicator can be changed according to the user's needs.

3. The measurement range is large and is not limited by the height of storage tank.

4. The indicating mechanism is completely isolated from the measured medium, with good sealing, high reliability and safe operation.

5. Simple structure, easy installation, easy maintenance, corrosion resistance, no power supply, explosion-proof.

Technical parameters:

1. Range of measurement (mm): 300-81000;

2. Medium density (g/cm3): 0.5-2;

3. Medium viscosity: <0.02Pa.S;

4. Working temperature: -40-350;

5. Pressure Grade (MPa): <32;

6. Measurement accuracy (mm): <10;

7. Installation methods: side-mounted, top-mounted and bottom-mounted.

8. Protection level: IP65;

9. Explosion-proof grade: IB II CT4 (intrinsically safe type), D II BT4 (flameproof type);

10. Transmission mode: 4-20 mA or switching quantity;

11. Interface flange: PN4.0 DN25 HG20593 (side mounted) PN1.0 DN100 HG20593 (top mounted, bottom mounted), can be customized according to the needs of users. Note: When the installation of level gauge is affected by the environment, the space position L1 < 300 should be clearly put forward.

6. Additional Functional Options:

Limit switch:

Normally open type: merge above alarm point

Normally closed type: disconnection above alarm point

Switching capacity: 250VAC1A (resistance) 250VAC0.3A

Switch life: 100000 times

Liquid level transmitter:

Output current: 4-20 mADC

Resolution: +1-+10mm

Load resistance: 500_ (24VDC power supply)

Transmission distance: > 3000m

Working power supply: 16-30VDC

Intelligent level transmitter:

Output current: 4-20ADC

Resolution: 0.2mm

Load resistance: 500_ (24VDC power supply)

Transmission distance: > 3000m

Working power supply: 16-30VDC

Classification and application:

1. Inserted magnetic tilting plate level gauge: This level gauge is suitable for measuring and controlling the level of underground tanks and pools.

2. Thermal insulating magnetic turning plate level gauge: The level gauge is a heat insulating jacket installed outside the main body of the basic type to form heat media such as steam. The normal flow of liquid in the main body can be maintained. Therefore, it is suitable for liquid level measurement and control of easily solidified liquids. For low boiling point liquids, refrigerants such as cold water can be introduced to ensure the stability of liquid level. Make the instrument indicate the measured liquid level correctly.

3. Frost-proof magnetic turning plate level gauge: It is a product specially designed by our factory to solve the freezing outside the cryogenic liquid level gauge. Inside the insulation jacket is a vacuum layer. Therefore, it can effectively isolate cold and heat conduction. It ensures that the outside of the main pipe of the level gauge will not freeze or frost. This ensures the normal use of the level gauge.

4. Strong corrosion resistant magnetic turning plate level gauge: All parts of the level gauge in contact with the medium are made of steel-plastic composite pipes. All of them can be used to measure and control the liquid level of various strong corrosive media.

8. Use and maintenance:

Use:

1. Detailed contents of the supporting instruments and accessories can be found in the corresponding instrument annex instructions.

2. In order to prevent damage caused by floating up and down in the process of long-distance transportation or removing, the magnetic float is absorbed by the corrected magnet steel matched with the level gauge at the outside of the main conduit (with color marking). Therefore, after receiving the product or installation, please remove the corrected magnet steel so that the float can move up and down with the liquid level. If the color of the magnetic flip column is different before use, the instrument can work normally if the corrected magnet steel sucks it up.

3. After the level gauge is installed, it needs to be corrected by magnetic steel, and the magnetic flip column is guided once, so that the display below zero is red and above zero is white.

4. The level gauge can be equipped with heating jacket or electric tracing according to user's needs.