magnetic float level meter

UQC Magnetic flap level gauge

Magnetic flap level gauge produced by Shanghai Automation Instrumentation Co., Ltd, is based on similar products at home and abroad to digest and in accordance with the original Ministry of Chemical Industry issued by the magnetic level gauge HG / T21584-95 developed products. The instrument can be used for a variety of towers, tanks, tanks, spherical containers and boilers and other equipment, liquid level detection.

Overview

Magnetic flap level meter can be used for a variety of towers, tanks, tanks, spherical containers and boilers and other equipment, liquid level detection. The series of level gauge can be done high

Sealed, anti-leakage and suitable for high temperature, high pressure, corrosion-resistant occasions. It makes up the glass plate (tube) level gauge indicates poor resolution, easy to break and other defects, and the whole process of measurement without blind spots, showing a clear, large measurement range. Magnetic flap level gauge parts of the material used 1Cr18Ni9Ti, 316L, 0Cr18Ni9Ti, 1Cr18Ni9Ti lining PTFE (PTFE), PVC, PP and other materials and imported components, with excellent reliability and corrosion resistance.

Introduction

Magnetic flap level gauge according to the specific work environment, to produce a variety of environments and a variety of materials to meet the level gauge, including: hydraulic level gauge, UHZ-F anti-corrosion type magnetic flap level gauge, insulation High-temperature and high-pressure magnetic column level meter, UHZ top-mounted magnetic float level gauge, HG5-1 glass level gauge, HG5-2 anti-frost level gauge, HG5 glass tube level UNS (UGS) color quartz tube level gauge, UHZ-59 and UQC series magnetic column (plate) level gauge and more types of products.

principle

Magnetic flap level gauge (also known as magnetic float level gauge) based on the principle of buoyancy and magnetic coupling developed from the role. When the liquid level in the container under test is raised and lowered, the magnetic float in the body gauge of the level gauge is also lifted and lowered. The permanent magnet in the float is transferred to the magnetic column indicator by magnetic coupling, driving the red and white When the liquid level rises, the column is changed from white to red. When the liquid level drops, the column is changed from red to white. The red and white junction of the indicator is the actual height of the internal level of the container, so that the liquid level is clear Instructions.

The distance between the two adjacent indicator plates is 10 mm, so the level indication error is ± 10 mm.

use

Magnetic flap level gauge can be used directly to observe the various containers of liquid level height. It is suitable for oil, chemical and other industrial areas of the liquid level instructions, the level gauge structure is simple, intuitive observation, clear, no clogging, no leakage, easy installation, easy maintenance. Glass plate level gauge, the lower end of the installation flange and the container connected to form a connector, through the glass plate can be directly observed in the container the actual level of liquid level. Up and down the valve is equipped with safety steel ball, when the glass due to accidental damage, the ball in the container under the action of automatic pressure to prevent leakage of liquid within the container, and to ensure the safety of operators.

installation

The main body does not allow the magnet around the body or directly affect the level gauge to work accurately. Due to the transport process in order not to damage the float components, so the factory before the float assembly out of the main body tube, until the level gauge is installed, open the bottom of the sewage flange, and then reload the float assembly Tube, pay attention to the float component heavy one up, can not flip.

Magnetic flap level gauge measurement used in the way and troubleshooting

Measure the liquid using top or side by side. The main body of the magnetic column is mounted outside the column level indicator, level switch and level transmitter. The magnetic element is placed inside the float or connected with the float through the ejector rod, and the magnetic color block (magnetic flap) is turned on when the float associated with the magnetic element changes with the liquid level; the magnetic level switch is operated at the corresponding liquid level; At the same time the liquid level sensor in the float under the action of magnetic force, the output changes in the standard resistance signal, and then through the transmitter to convert the resistance signal 4 ~ 20mA current signal output.

Features:

1, for a wide range of installation in various forms, suitable for any media level, the interface of the measurement.

2, the measured medium and the instructions completely isolated structure, sealing performance, anti-leakage, to adapt to high pressure, high temperature, corrosion conditions, liquid level measurement, high reliability.

3, set the scene instructions, remote transmission, alarm control switch in one and free to adjust, full-featured two-color indicator with luminous, continuous intuitive, eye-catching, measuring range, observation direction can be arbitrarily changed.

4, good vibration resistance, can adapt to the situation of large fluctuations in the situation of simple structure, easy installation, low maintenance costs.

5, with exquisite magnet correction, on-site arbitrary calibration technical parameters.

Measuring range:

150 ~ 8000mm, the center distance of more than 8000mm or remote transmission conditions are not allowed to exceed the length of the level gauge can be used sub-manufacturing. Working pressure: 0.6; 1.0; 2.5; 4.0; 6.4; 10Mpa

Operating temperature:

F: 120 ° C; G: 200 ° C; H: 450 ° C

Accuracy: ± 10mm

Medium density: 0.5 to 2.0 g / cm3

Medium density difference: ≥ 150kg / m3 (measurement boundary)

Ambient vibration: frequency ≤ 25Hz amplitude ≤ 0.5mm

Follow the speed: ≤0.08m / s

Medium viscosity: ≤ 0.4Pa.s, for the viscosity of the medium or low temperature measurement when the crystallization of the medium, you can use heating jacket type level gauge.

Process connection: Bypass side mounting flange: DN25, PN1.0 or PN1.6, PN2.5, PN4.0, PN6.4, PN10.

Switch options: can choose ordinary type, explosion-proof type

Transmitter Options: Optional Reed Switch Level Transmitter, Optional Magnetostrictive Level Transmitter, Optional All Smart Band Display Level Transmitter

Percussion method

Often encountered when the instrument is running good and bad phenomenon, the vast majority of this phenomenon is due to poor contact or Weld caused. For this situation can be used to strike and hand pressure method.

The so-called "percussion" is the possible failure of the site, through the small rubber hammer to hit the normal contact.

Seven use notes for magnetic flap level gauge

1. For more than a certain length (ordinary type> 3 meters, anti-corrosion type> 2 meters) level gauge.

2. The location of the magnetic flap level gauge should be avoided or away from the import and export of the material medium to avoid the rapid changes in the local area of ​​the material fluid, affecting the accuracy of liquid level measurement;

3. When equipped with remote matching instruments need to do the following:

4. should be remote matching instrument close to the level gauge main pipe, and stainless steel hoop fixed (disable iron);

5. Far forward supporting instrument on the sensor surface should be facing and close to the main tube;

6. Debugging should first open the upper tube valve, and then slowly open the lower valve, so that the media smoothly into the main tube (the operation should avoid the rapid impact of the media float, causing the float series fluctuations, affecting the display accuracy), observe the magnetic red and white Flip the normal, and then close the lower tube valve, open the sewage valve, so that the main tube level drops, according to this method of operation three times, it is normal, you can put into operation (corrosive and other special liquid except);

7. should be based on the media situation, from time to time to clean the magnetic flap level gauge main pipe to remove impurities;