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Long March Instrument (Jinhu) Co., Ltd

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Magnetic coupling level gauge

NegotiableUpdate on 11/19

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Introduction: Overview of magnetic coupling level gauge: The magnetic coupling level gauge is installed on the extension pipe outside the tank, and the liquid level inside the tank can be clearly indicated by the flip plate indicator. Magnetic switches can also be installed on the outside of the bypass pipe as electrical contact signal outputs, or as liquid level transmitters

Product Details

Overview of Magnetic Coupled Liquid Level Gauge:

The magnetic coupling level gauge is installed on the extension pipe outside the tank, and the liquid level inside the tank can be clearly indicated by the flap indicator. Magnetic switches can also be installed on the outside of the bypass pipe,

As an electrical contact signal output, or as a liquid level transmitter for long-distance liquid level signal transmission and liquid level control. Magnetic coupling level gauge based on buoyancy principle and magnetism

The principle of coupling works. When the liquid level in the tested container rises or falls, the float in the main tube of the liquid level gauge also rises or falls accordingly, and the magnetic steel inside the float is magnetized

Coupling is transmitted to the on-site indicator, driving the red and white flip columns to flip 180 °. The liquid level rises, and the flipping column changes from white to red; The liquid level drops and the flipping column turns white,

The red and white boundaries of the indicator represent the actual height of the liquid level of the medium inside the container, thus achieving liquid level indication.

The magnetic coupling level gauge should consider the following factors:

(1) Measuring objects, such as the physical and chemical properties of the measured medium, as well as working pressure and temperature, installation conditions, and the speed of liquid level changes;

(2) Measurement and control requirements, such as measurement range, measurement (or control) * degree, display mode, on-site indication, remote indication, and calculation

Machine interface, safety and anti-corrosion, and construction convenience.

Maintenance of magnetic coupling level gauge

1. Magnetic coupling level gauge should be cleaned every six months

2. When cleaning, first open the screw cap of the iron pipe of the water level gauge, carefully take out the level gauge, and then clean up the debris around the equipment.

3. Magnetic coupling level gauges should be placed neatly, and pipelines and lines should be organized; Good lubrication, timely refueling or oil change, continuous oiling, no dry friction, normal oil pressure,

The oil gauge is bright, the oil circuit is unobstructed, the oil quality meets the requirements of the level gauge, and the oil gun, oil cup, and oil felt are clean; Trichloroethylene or alcohol can also be injected into the pressure hole

Soak at half the height for about 5 minutes, then gently shake and repeat multiple times until it is cleaned thoroughly. Do not use any tools to clean the pressure hole,

4. Clean the liquid level of the internal medium of the level gauge, avoid using brushes or metal tools with excessive hardness, and avoid damaging the sensitive core and pressure interface threads.

5. After cleaning, slowly place the liquid level gauge back into the iron pipe, feeling that the lower part of the iron pipe has been placed. Install the rotary cap back to its original position, and then remove it for cleaning

When reinstalling the liquid level gauge, it is necessary to correct the detection values of the secondary instrument again by comparing the water level gauge at the same water level as the water gate to ensure the correctness of the sampling data.

Technical specifications of magnetic coupling level gauge:

1. Range (mm): 300-81000;

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

3. Medium viscosity: ≤ 0.02Pa.S;

4. Working temperature ℃: -40~350;

5. Pressure rating (MPa): ≤ 32;

6. Measurement accuracy (mm): ≤± 10;

7. Installation methods: side mounted, top mounted, bottom mounted;

8. Protection level: IP65;

9. Explosion proof level: ib Ⅱ CT4 (intrinsic safety type), d Ⅱ BT4 (explosion-proof type);

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

11. Interface flange: PN4.0 DN25 HG20593 (side mounted) PN1.0 DN100 HG20593 (top mounted, bottom mounted), can be used
Specially customized according to user needs. Note: When the installation of the level gauge is affected by the environment and the spatial position L1<300 is ordered, it should be clearly stated.

6、 Additional function options:

Limit switch:

Normally open: merge above the alarm point

Normally closed: disconnected above the alarm point

Switch capacity: 250VAC1A (resistive) 250VAC0.3A

Switch lifespan: 100000 cycles

Liquid level transmitter:

Output current: 4-20mADC

Resolution: ± 1- ± 10mm

Load resistance: 500 Ω (when powered by 24VDC)

Transmission distance:>3000m

Working power supply: 16-30VDC