Clamp type metal tube rotameter

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ZW-LZ series Clamp type metal tube rotameter Also known as the sanitary type metal tube variable are…

Productoverview:

ZW-LZ series Clamp type metal tube rotameter Also known as the sanitary type metal tube variable area flowmeter, is the principle for measurement, flow measurement and control of various fluids. The flowmeter is mainly formed by the connection type packaged chuck, measuring tube, conical float and indicator and other components, as with different indicators, can realize the field indicator, (4~20) mA analog signal output, LCD display instantaneous and cumulative flow, alarm, HART communication protocol, battery power and explosion other functions.

Two, work principle:

ZW-LZ series clamp type metal tube rotameter is the medium to be measured through a conical measuring tube float from upper and lower ends of the differential pressure generated form the upward force, when the float was immersed in a fluid on the lift is greater than the weight of the float, the float will rise, annulus area increases, the annulus fluid velocity decreased immediately float on the lower end of the differential pressure is reduced, to float upward force also decreases with, until the lift is equal to the weight of the float when immersed in a fluid, the float will stabilize at a certain height. The float position that corresponds to the size of the measured medium flow. A built-in magnet, the float with the medium moves up and down, with the movement of the float magnetic field changes.

A, for in situ, by rotary magnetic float and the local indicator in the inner magnetic coupling, rotate, and drives the pointer, through the dial indicates the size of the flow.

B, the intelligent, by a solid state magnetic sensor intelligent indicator in the magnetic field will change into electrical signal output by A/D transform, D/A microprocessor, LCD liquid crystal display to show the size and cumulative flow flow.

Three, application:

ZW-LZ series clamp type metal tube rotameter is suitable for small flow, low Reynolds number of medium flow measurement is widely used in food, chemical, petroleum, metallurgy, electric power, environmental protection, medicine and light industry and other departments of the liquid flow measurement and automatic control.

Fourth, the main features:

1, suitable for small diameter and low flow velocity medium measurement;

2, reliable operation, low maintenance, long service life;

3, for the straight pipe is not high, wide flow ratio 10:1

4, two large LCD display, optional field instantaneous / total flow rate display, with backlight;

5, single axis sensitive indicator;

6, all metal structure, suitable for high temperature, high pressure and strong corrosive medium;

7, can be used in flammable and explosive occasions.

Five, technical parameters:

1, measuring range: water (20 C) 60~55000L/h see flow meter;

2, than the standard range: 1:10;

3, accuracy: 1.5;

4, pressure rating: DN25~DN100 PN0.6;

5, installation: installed vertically in the bottom medium;

6, pressure loss: 7kPa-70kPa;

7, medium temperature: Standard Type: -80 ~+200 DEG c;

8, medium viscosity: DN25: < 250mPa.s;

DN50~DN100: < 300mPa.s;

9, the ambient temperature: liquid crystal type -30 ~+55 DEG c;

10, the pointer type: -40 ~+120 DEG c;

11, the connection form: fast loading chuck;

12, cable interface: M20 * 1.5;

Power supply: 13, standard 24VDC two-wire 4~20mA (10.8VDC~36VDC);

14, AC type: 85~265VAC 50HZ;

15 type: 3.6V@4AH battery, Ni MH battery;

Alarm output: 16, the lower or upper limit of instantaneous flow alarm;

17, standard type: open collector output (internal impedance 100mA@30VDC 100 Europe);

18, special type: relay output (contact capacity 5A@250VAC);

19 pulse output: cumulative pulse output, small interval 50 ms;

20, liquid crystal display: instantaneous flow display value range: 0~50000;

21, the total flow display value range: 0~99999999;

22, protection grade: IP65;

23, intrinsically safe explosion proof mark: ia II CT6 flameproof D II BT4.

Sixth, conversion indicator:

The converter is actually the height conversion taper pipe float into the corresponding volume scale. From the output signal: local display and remote signal output type:

1, local display type: by in situ indicator in the follow-up magnetic float and the inner magnetic coupling, and rotate, and the electric pointer by dial indicating the flow

2, intelligent remote type, by the intelligent indicator in the follow-up magnetic float and the inner magnetic coupling, rotate, and drives the magnet and the sensing pointer through a magnetic sensor magnetic field change into electrical signals by A/D conversion, digital filter, D/ microprocessor, A output, LCD liquid crystal display, to show the instantaneous flow and cumulative flow rate.

Seven, the type of flow meter:

1, the metal tube flowmeter will 5 types of products according to the fluid into the entrance and exit direction: vertical type, horizontal type (including the level T, level of spring type), into the side of the bottom and side into the side, side in the type, and each type and standard type, high temperature type, jacket type etc..

2, the level of the installation type meter when the diameter is less than DN50 (inclusive), using T structure, when more than DN50, the spring structure.

3, specifications: standard type flowmeter is connected with GB/T9119-2000 standard flange, flange standard can be made according to customer demand; also can be used threaded connection, clamp connections.

Magnetic filter:

If there is a ferromagnetic particle medium, magnetic filter installed in the entrance before the flowmeter.

Eight, product maintenance:

1, in the process of long-term use, the pipeline inevitably there will be ferromagnetic impurity adsorption on the float, it will float stuck or affect the measurement accuracy, from time to time to clean the sensor float; if the installation of magnetic filters should be cleaned regularly.

2, the instrument indicator with electronic components, instrument wiring or demolition of housing, to housing screws, must ensure sealing, prevent impurities, or other material into the water, and also to ensure reliable earthing of the meter casing.

3, the instrument is installed, in use, should pay attention to:

When the valve is opened to avoid the formation of pressure shock makes the float slamming limiting device, causing damage to the instrument, slowly open the valve!

The measurement of gas meter is equipped with gas damper, Zui to decrease the float concussion; to ensure the stability of the float, a throttle valve can be installed in the instrument export.

4, for the remote type instrument, we must first ensure that the instrument wiring correctly, keeps power; for dangerous situations, must choose the explosion-proof, and the installation and use of proof required by the.

Nine, matters needing attention:

In 1, before the first installation flowmeter in the pipeline, dirt, impurities such as welding blowing clean, if the liquid contained solid impurities, should the corresponding filter is installed between the valve and the straight pipe.

2, shielding and grounding system: in order to ensure ideal electromagnetic compatibility, shielding and grounding is very important, especially the bus cable, cable as far as possible to make continuous shielding.

3, the safety zone, according to the requirements of conventional cable grounding as much as possible.

4, in dangerous places, to ensure that the whole range of bus safe places and dangerous enough, all the potential, in this case, multiple ground is very superior.

10, flow parameter table:

Eleven, the selection of encoding:

12, design selection and ordering information:

1, please provide the pipe size, wall thickness, material requirements and accuracy requirements;

2, please provide a liquid or gas, such as the name, commonly used commonly used temperature, working pressure, common flow, density, viscosity etc.;

3, choose anti-corrosion type, should indicate the measured corrosion and concentration etc.;

4, if there are special to show, please contact our sales department.

Customer service service commitment:

1, our series of metal tube flowmeter series product 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.