Magnetically flipped plate level gauge

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Magnetically flipped plate level gauge is a very intuitive and eye-catching indicator of material le…

Productoverview:

ZW-UHZ series Magnetic level gauge Installed in the groove of the outer barrel extension tube, the liquid level inside the tank can clearly see that by the turn indicator board. The bypass pipe can be installed outside of the magnetic switch, as electrical signal output, or device level transmitter do remote level signal transmission and level control. The level gauge is a reliable safety instrument. Because of magnetic coupled isolator sealing structure. Especially for flammable, explosive and corrosive toxic liquid level detection. So that the liquid level detection means the original complex environment becomes simple and safe and reliable. Liquid level meter has the characteristics of direct reading display. No more group level meter. A single full range measurement. With less equipment opening, clear display, eye-catching signs, visual reading etc.. When the liquid level meter with direct display instrument can save the intermediate transmission signal detection system to improve the transmission accuracy.

Two, the structure and working principle:

ZW-UHZ series <strong> magnetic level gauge</strong> according to the principle of buoyancy and magnetic coupling principle. When measured in the container level lift, liquid level gauge leading tube float will lift, float in * steel through the relay to the magnetic coupling drive indicator, red and white turn column to 180 degrees, when the liquid level rises, turn column turned from white to red, when the liquid level drops from red to turn column white, red and white circles indicator at the actual height of the medium level in the container, so as to achieve the level of instruction.

1, the basic type

According to the principle of buoyancy, the float with the liquid level measuring tube at the lift on the next move, the magnetic float * by coupling, driving the red and white turn column flip 180 degrees, the liquid level rises over the column turned from white to red, down from red to white, so as to achieve the level indicator.

2, the electric remote

The transmitter is installed in the float level meter, through the float moves up and down by the magnetic coupling with the guide rod in the measuring element in action, to obtain the resistance signal changes, into 0 ~ 10mA or 4 ~ 20mA standard signal output, and display instrument connection or computer, to achieve remote.

3, limit switch output

The liquid level meter riser is set by the user and the limit of installing position controller, the controller with self reed switch to maintain function, using the magnetic float with the liquid level moves the magnetic reed switch action, alarm or limit control.

Three, the characteristics and applicable places:

ZW-UHZ series <strong> magnetic level gauge</strong> is suitable for low temperature to high temperature, high pressure and vacuum to various environments, such as petroleum and chemical industry is the ideal level measurement products. According to the installation position in the container, side loading and top loading two forms. According to different media, providing ABS, PP-R engineering plastics and stainless steel three kinds of materials, including ABS, PP-R material suitable for acid, alkali and other corrosive medium.

1, suitable for high temperature, high pressure, strong acid, strong alkali and explosion-proof requirements, simple structure, reliable and durable, can add a variety of optional accessories to make control easier;

2, the installation level transmitter and magnetic switch, does not need to install or stop can be adjusted at any time;

3, if the power fails, the magnetic switch is not affected, the accuracy is high;

4, each 10 cm with a different color color, the liquid level is easy to identify;

5, suitable for dyeing and finishing equipment, waste water treatment, power plants, chemical equipment, kerosene boiler and petrochemical industry.

Four, advantages and disadvantages:

Advantage：

1, measurement channel is smooth straight, not block, suitable for the measurement of solid particles in the solid-liquid two-phase fluid, such as pulp, slurry, sewage etc..

2, no pressure loss caused by traffic detection, good energy-saving effect;

3, the measured volume of traffic actually is not affected obviously fluid density, viscosity, temperature, pressure and electrical conductivity;

4, large flow range, wide caliber;

5, application of corrosive fluid.

Shortcomings:

1, can not be measured very low conductivity liquid, such as petroleum products;

2, the measurement of gas, steam and not containing larger bubble liquid;

3, can not be used for high temperature.

Five, technical parameters:

1, the normal working conditions:

A, environmental temperature: - 25 to 70 DEG c;

B, relative humidity: 5% ~ 100% (including direct condensation and wet);

C, atmospheric pressure: 86KPa ~ 108KPa;

2, measurement range: 500mm ~ 6000mm;

3, accuracy: double column indicator + 10mm;

4, working pressure: 1MPa, 1.6MPa, 2.5MPa, 4MPa, 6.3MPa, 10MPa, 16MPa;

5, medium density: 0.5g/cm3 ~ 1.8g/cm3;

6, medium viscosity: less than 0.05Pa s?;

7, medium temperature: -25 (high temperature to 80 DEG C, 0~200 C), (high temperature of 0~450 DEG C);

8, tracking speed: less than 0.8m/s;

9, contact material: 1Cr18Ni9Ti teflon;

10, control point error: + 10mm;

11, the return difference does not exceed the basic error;

12, repeatability error: no more than the basic error;

13, the switch control point contact capacity: DC24V or AC220V; 1A (resistive load);

14, small spacing between control points Zui (mm): 60;

15, shell protection grade: IP65;

16, display instrument: digital display meter (set alarm and output 4 ~ 20mA signal);

17, explosion-proof grade: D II CT6.

Six, system components and wiring:

1, limit switch output:

A self holding function and reed switch converter, reed switches and converters were installed in the field and control room, by the converter to provide three pairs of contact switch.

2, the electric remote:

A measuring unit and a transmission unit is composed of two parts.

3, explosion-proof:

A with explosion-proof, upper and lower limit switch output:

Safety explosion-proof switch gate switch and relay contacts of the reed which can be directly provided to users of a normally closed or open contact. If the user needs to contact more special design orders.

B, the security belt type transmission burst:

Suitable for use in class II (Electrical Equipment Factory), C gas, Zui high surface temperature group T4 (135 C).

C, cautions:

The shell is provided with external transmitter, users must be reliable grounding.

Use the security gate, shall comply with the instructions for use of content.

The connecting cable, transmitter and barrier for industrial safety end for two core shielded cable, wire cross-sectional area of more than 0.5m, cable distributed capacitance is 0.8 F.

Seven, maintenance and installation:

Maintain：

1. gauge cylinder should be solid impurities and magnetic impurities, so as to avoid jamming and weaken the buoyancy of the float.

2. according to the media, the leading tube can be cleaned regularly, remove sediment impurities in pipe.

3. of the level meter for cleaning or replacement of the float, open the drain flange into the magnetic float, should pay attention to the heavy and magnetic end up not flip!

4. on the low temperature type and liquefied gas special products, vacuum jacketed insulation main body level meter, the installation process be careful not to damage the jacket, so as not to affect the quality of the products.

Install:

1, must be installed vertically, to ensure that the floating ball components in the main tube moving up and down freely.

2, around the main body does not allow the magnetizer near or directly affect gauge F indeed work.

3, after installation, need to carry on the adjustment to the magnetic turning column guide a to zero below zero above the display shows a red, white.

4, put into operation should first open the liquid guide pipe valve and allow smooth liquid medium into the main pipe, avoid liquid medium with floating ball components caused by the rapid rise in turn column failure and turn over. If this occurs to the surface smooth available after re correction magnet.

5, due to the transport process in order not to float the component damage, before the factory will float out of the main pipe component level meter, liquid meter after installation, open the bottom discharge flange, then float assembly back in the main tube, pay attention to a heavy floating ball assembly on the head, not flip. If the factory has float components installed in the main tube, in order to ensure the damage of Kabuki ball float subassembly in the transport process, we use soft card float component is fixed on the main tube, when installation, the soft card can be drawn.

6, according to the media, can regularly open sewage main pipe flange cleaning sediment.

Eight, selection and installation:

1, we must first understand the equipment running their own situation, what is the measuring medium, even if they do not need to know what material, our company also can determine the material according to the medium used equipment.

2, when equipped with the remote meter to do the following, should make the remote meter to gauge leading tube, stainless steel hoop is fixed (disable iron); the remote meter should be on the surface should be oriented and close to the main duct; the remote meter should be zero and gauge zero instructions in the same horizontal line; remote meter and display instrument or computer connection alone wear protective pipe laying or shielding two core cable connection box; a wire inlet hole after laying, requires good sealing, in order to avoid rain, moisture intrusion and make remote matching instrument can not work normally, the junction box in the repair or completion of commissioning should be timely cover.

3, according to the media, cleaning the main duct to remove impurities;

4, for more than a certain length (common type > 3 meters, 2 meters, anti-corrosion type) of the liquid level meter, need to increase the middle reinforcement flange or lug fixed support, to increase the strength and overcome their weight;

5, magnetic position, board level meter should be avoided or away from materials import and export department, to avoid the rapid change of fluid material in local area, affecting the accuracy of liquid level measurement;

6, when debugging, should open the upper guide pipe valve, and then slowly open the valve at the lower part, so that medium smooth entry duct (to avoid the rush of media should be run in the float float, cause drama column fluctuation, affecting the display accuracy), observe the red ball magnetic flip is normal, and then close the lead pipe valve, open the drain valve so, the main duct level drops, according to the method, the operation three times, it is normal, can be put into operation (except special corrosive liquid); magnetic level gauge in the market there are other names, also called magnetic level gauge, or magnetic level gauge, also called magnetic float liquid level gauge. But they need to know the order parameter is certain, such as corrosive medium needs anticorrosive material, corrosion corrosion grade equivalent grade according to the changes of the medium. For example, the special situation of their own equipment, determine the installation mode of the magnetic level gauge, because some places do not fit or do not apply some installation methods.

Nine, the installation process:

1, after the factory, has assembled all the debugging, arrived at the scene, we must first clean up the site to install equipment.

2, ready to install the necessary tools and bolts and manufacturers and distribution of the turning column indicates the calibration bar.

3, wipe scene flange, adjust equipment flange and magnetic level gauge flange on the straight, must keep the magnetic level gauge body vertical, and then put into the 4 hole bolt flange tool.

Ten, installation notes:

1, around the body does not allow magnetic material to disable wire fixation, otherwise it will affect the normal work of the magnetic level gauge;

2, if the user uses the heat pipe, must use the non-magnetic materials, such as copper etc.. Heating temperature is determined according to the media;

3, must be installed vertically, magnetic level gauge and container tube should be installed between the valve, which is convenient for maintenance and cleaning;

Containing solid impurities or magnetic material should not be 4, medium, so as to avoid the blocking of the float;

5, before use should be the first to use correction magnet zero below the red ball, the ball into the other white;

6, open the bottom flange, a magnetic float (Note: the heavy and magnetic end up not flip.

7, when debugging should open the upper guide pipe valve, and then slowly open the valve at the lower part, so that medium smooth entry duct (to avoid the rush of media should be run in the float float, cause drama column fluctuation, affecting the display accuracy), observe the red ball magnetic flip is normal, and then close the lead pipe valve, open the drain valve, let the leading tube liquid level, according to the method, the operation three times, it is normal, can be put into operation (except special corrosive liquids);

8, according to the media, cleaning the main duct to remove impurities;

9, for more than a certain length (common type > 3 > 2 meters, anti-corrosion type meters) level gauge, to increase the middle reinforcement flange or lug fixed support, to increase the strength and overcome their weight;

10, magnetic position gauge, should avoid the material medium or away from the import and export department, to avoid the rapid change of fluid material in local area, affecting the accuracy of liquid level measurement;

11, when equipped with the remote meter (UB or UK) to do the following:

A, should make the remote meter to gauge leading tube, stainless steel hoop is fixed (disable iron);

B, the remote meter should be on the surface should be oriented and close to the main duct;

C, the remote meter should be zero and gauge zero instructions at the same level;

D, the remote meter and display instrument or computer connection alone wear protective pipe laying or shielding two core cable;

E, junction box line hole after laying, requires good sealing, in order to avoid rain, moisture intrusion and the remote meter can not work normally, the junction box in the repair or completion of commissioning should be timely cover.

Eleven, the selection of encoding:

Twelve, please provide the following data:

1, specifications; the magnetic turning plate level gauge: ZW-UHZ series;

2, the measured medium Name: medium density: if you do not know the density, can tell us the name of the medium, which is composed of mixed liquid to know several liquid;

3, the instrument measuring range: also known as nominal length, which is a flange of the center distance, or look at the scale of products already in use;

4, working pressure: pressure;

5, working temperature: measure the temperature of the liquid;

6, material requirements: wetted materials, such as do not know what kind of material, can give us advice (general liquid is what material we can use what material);

7, supporting the supply of flanges, bolts and nuts, valve, sealing washers and other accessories;

8, standard: flange flange nominal diameter, the use of conventional DN20 or DN25 flange;

9, special requirements: please indicate in detail before ordering, such as whether or not to take the remote, insulation jacket etc..

Customer service service commitment:

1, our level meter series products quality problems within twelve months, responsible for free maintenance.

2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.

3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.

4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.

5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.