Level Meter with Limited Alarm Switch Magnetic Turn-over Plate

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Magnetically flipped plate level gauge with alarm switch is made of 304 stainless steel, which can b…

Productoverview:

ZW-UHZ series Band limiting alarm switch magnetic level gauge Is a novel field instruments, facilities on the lower limit of the sender, it is installed in the magnetic level gauge body corresponding to the upper limit alarm position, when the main body magnetic float moves up and down to the point when the magnetic component transmitter in reed contacts are attracted or disconnected. A switch signal. Upper and lower signal transmitter output has a self holding function, so it is not afraid of power failure and restoration after the sender contact state still can accurately reflect the true level of the measured medium, the liquid level monitoring alarm or the inlet fluid control equipment.

Remove the cleaning, open the bottom flange, remove the magnetic float for cleaning, cleaning after the completion of installation of the magnetic float must pay attention: the heavy and magnetic end up, do not flip, otherwise the gauge will not work properly. Before use, should be the first to use correction magnet zero below the red ball, the ball into the other white.

Two, work principle:

1, the basic type

ZW-UHZ series <strong> belt limiting alarm switch magnetic level gauge</strong> according to the principle of buoyancy, the float with the liquid level measuring tube at the lifting up and down inside the float magnet by magnetic coupling effect, driving the red and white flip turn column 180 'level rises, turn column turned from white to red, drop, turn column from red to white, so as to achieve the level of instruction.

2, limit switch output

The use of magnetic float with the liquid level gauge is installed in the mobile, the vertical tube set position switch, realize on-off control or alarm.

3, the electric remote

The magnetic level gauge transmitter installation. The sensor and transmitter converter is composed of two parts, the magnetic float moves up and down by the magnetic coupling of the measuring element in intraductal action, obtain the resistance signal changes, summoned into 0~10 or 4 ~ 20mA standard current signal output, and digital display connected to the instrument or computer, realize remote display and control.

Three, application:

ZW-UHZ series <strong style="white-space: normal;"> belt limiting alarm switch magnetic level gauge</strong> can hardly be applied to various industrial automation process level measurement and control. Can be widely used in oil processing, food processing, chemical industry, water treatment, pharmaceutical, power, papermaking, metallurgy, ship and boiler in the field of liquid level measurement, control and monitoring.

Four, main features:

1, the display to indicate the level of red, the upper white area is no liquid, intuitive display, eye-catching, luminous effect is good.

2, the liquid level measurement range, from the container size, shape and the limitation of the installation position, measurement process without blind area.

3, the liquid level display and the measured medium is completely isolated, safe and reliable.

4, wetted parts made of different materials, can be applied to the measurement of liquid level of various corrosive media.

5, high temperature, toxic and flammable and explosive medium level measurement, which has very strong applicability.

Five, technical parameters:

1, the range (mm): 300~30000;

2, medium density (g/cm3): 0.5 ~ 2;

3, medium viscosity: less than 0.02Pa.S;

4, working temperature: -40 ~ 350;

5, pressure level (MPa): less than 32;

6, the measurement accuracy (mm): less than 10;

7, installation: side mounted, top mounted, bottom mounted;

8, protection grade: IP65;

9, explosion-proof grade: IB II CT4 (Ben Anxing), D II (BT4 flameproof);

10 transmission modes: 4 ~ 20mA or switch;

11: PN4.0 DN25 HG20593, the interface flange (side mounted) PN1.0 DN100 HG20593 (top mounted, bottom mounted), can be customized according to the needs of users. Note: when installed under the influence of environment security level gauge, the space position of L1<300 order should be significantly raised.

Six, additional option:

1, the magnetic limit switch:

Open type: alarm with higher than;

Normally closed type: higher than the alarm off;

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

Switch life: 100000 times.

2, a liquid level transmitter:

Output current: 4-20mADC;

Resolution: + 1- + 10mm;

Load resistance: 500 ohms (24VDC power supply);

Transmission distance: 3000m;

Power supply: 16-30VDC.

3, intelligent liquid level transmitter:

Output current: 4-20ADC;

Resolution: 0.2mm;

Load resistance: 500 ohms (24VDC power supply);

Transmission distance: 3000m;

Power supply: 16-30VDC.

Seven, 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. (Figure three)

With the explosion of the remote type security b:

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

Note the use of c:

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

The use of the safety 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.

Eight, installation, use and maintenance:

1, level gauge must be installed vertically, to ensure that the magnetic float movement in the main duct freely up and down.

A stop valve is arranged between the 2, the liquid level meter and the container, so that cleaning and maintenance to cut materials.

3, level gauge cylinder around a magnet close to not allow, otherwise it will directly affect the level of normal work.

4, level meter factory general insulation, but according to user needs for insulation, such as the user uses the hot mix line, must use the non-magnetic material.

5, to prevent the magnetic float transport at the leading high speed sliding tube to be hit, level meter factory, with Cathy will be fixed on the lower magnetic float liquid guide pipe, the user should be removed card silk can be installed prior to installation and use.

6, level meter installed, with magnetic correction of magnetic guidance once to zero below zero above the red, white

7, level gauge is put into operation, should open the valve on the liquid guide pipe, then slowly open under the liquid guide pipe valve, let the liquid medium smoothly into the main canal, avoid the liquid medium with a rapid rise caused by magnetic reversal failure or disturbed (in case of this phenomenon, the magnet available for calibration.)

8, open the bottom flange plate is installed in the magnetic float boring, heavy, should pay attention to end with a magnetic end up not flip.

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

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

Nine, the installation process:

1, after the factory, has assembled all the debugging, arrived at the scene, the first step must first clean up *, the need to install the 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, level gauge must be installed vertically, to ensure that the floating ball components in the main tube moving up and down freely.

2, level gauge around the main body does not allow the magnetizer near or directly affect level meter to work correctly.

3, level meter installed, need to use steel to correct a double bead guide to make zero position below zero above the display shows a red, white.

4, level meter running should first open the liquid guide pipe valve for liquid medium smoothly into the main pipe, avoid liquid medium with floating ball components caused by the rapid rise, turn turn bead failure and shuffle. 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.

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

Eleven, the selection of encoding:

Twelve, please provide the following data:

1, specifications; magnetic 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 the two flange 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, using conventional flange is DN20 or DN25;

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.