Corrosion proof metal tube rotameter

Productoverview:

ZW-LZ series Corrosion proof metal tube rotameter The measuring tube indicator independent concept design, can choose stainless steel, Hastelloy, titanium, PTFE material measurement system, low pressure loss. The magnetic coupling flowmeter structure to ensure data transmission, more stable signal. Insulation or heating jacket, the vertical and horizontal installation, more suitable for different occasions. Suitable for small diameter and low flow velocity measurement for the medium, the straight pipe is not high. Wide flow ratio 10:1; double large LCD display, optional field instantaneous / total flow rate display, with backlight; all metal structure, suitable for high temperature, high pressure and strong corrosive medium; can be used in flammable and explosive occasions; selection of AC power supply, battery, two-wire; with data recovery, data backup and power down protection.

Second, working principle:

ZW-LZ series of anticorrosive 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 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.

Third, application:

ZW-LZ series of anticorrosive metal tube rotameter is suitable for the measurement of liquid, gas.Widely used in petroleum, chemical, power, pharmaceutical, food, water treatment, etc.. The complex, harsh environmental conditions, the flow measurement process and various medium conditions in.

Four, main features:

1 of all metal structure design, strong, simple, high pressure resistance, high temperature resistance, corrosion resistance, long service life;

2 short stroke, high 250mm, convenient installation;

3 mechanical pointer instructions LCD liquid crystal display instantaneous flow, instantaneous flow, cumulative flow;

4 intelligent indicator, using foreign Zui new signal processing chip, modular design, no hysteresis;

The 5 is data recovery, data backup, power down protection and fault self diagnosis function;

6 HART type indicator, two-wire 24VDC power supply, 4-20mA standard current signal output of HART protocol stack;

7 through HART communication manipulator configuration and parameters can be adjusted;

8 and PC serial connection, through the Windows program, to achieve on-site calibration of the instrument;

9 can be used in flammable and explosive occasions;

10 vertical and horizontal, upper lower, bottom side, side into the side such as the installation of a variety of forms, flange or threaded connection.

Five, technical parameters:

Measuring range: water (20 C) 1-200000 L / h;

The air (at 20 0.1013MPa) 0.034000m3 / h;

See flow table, special traffic can be customized;

Range: standard type 10:1 special type 20:1;

Precision: standard type 1.5 special type 1;

Pressure rating: Standard Type: 4.0MPa DN80-DN200 1.6MPa DN15DN50;

Special type: 25MPa DN80-DN200 16MPa DN15DN50;

The pressure rating of jacket for 1.6MPa;

Special type in the selection and ordering should negotiate with the factory;

Pressure loss: 7kPa-70kPa;

Medium temperature: Standard Type: 80 c c c c: PTFE:0 85 -200;

High temperature type: Zui up to 400 DEG c;

Medium viscosity: DN15: <5mPa.s (F15.1-F15.3);

<30mPa.s (F15.4-F15.8);

DN25: <250mPFa.s;

DN50-DN150: <300mPa.s;

Ambient temperature: - 30 DEG C C +85 type liquid crystal;

Pointer type 40 C C +120;

Connection type: Standard Type: DIN2501 standard flange;

Special type: specified by the user in any standard flange or thread;

Cable interface: M20 * 1.5;

Power supply: standard type 24VDC (10.8VDC36VDC) 4 - 20mA with two-wire system;

AC: 85265VAC 50HZ.

Six, installation requirements.

Remove the filler, 1 meter box after check, the meter should be installed vertically in the pipeline without vibration, such as to the level of the installation, the order should be additional instructions. The angle between the line and the plumb line flowmeter center should not exceed 5 degrees.

In 2, the newly installed pipeline flow meter should be installed before the new pipeline clean metal pipe, if the measured medium containing impurity particles or bubbles, you should install filtering device or exhaust in flowmeter installation, the fluid must be flowing from down to up, if the fluid flow from top to bottom, then the flowmeter can not work. If the measured medium is pulsating flow, it should be appropriate to the size of the buffer device is arranged in the downstream, such as surge tank to eliminate pulsation.

3, in order to check the meter zero and disassembly and maintenance and debugging, should stop valve and bypass valve installed in the upstream and downstream flow meter.

4, an instrument according to the provisions after installation, should close the flow meter on the downstream shut-off valve, check again with the two meter instrument wiring, error free, open the two meter power supply is the instantaneous flow rate should be zero.

Seven, 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.

Eight, matters needing attention:

1, the instrument used, should slowly open the valve to open the upstream and downstream of the flowmeter, flow regulating valve. The instrument stop should be used to slowly close the upstream valve, then close the meter downstream flow regulating valve.

2, the instrument indication in line to see, according to the height of the float rises at the present value of float gauge reading.

3, when the cone tube and float dirt, should be cleaned.

Error 4, regular check meter, once beyond the prescribed error, should replace the float and cone tube, or re calibration to get better precision.

5, the measured fluid and flowmeter calibration medium is uniform, the need for showing the value according to the revised. Represented by the formula QS=QN = Qn = QS actual flow flowmeter showing the value of P n = flowmeter calibration medium density s = density of measured medium f = float material density.

Nine, the measuring range and the pressure loss:

10, encoding selection:

Eleven, design selection and ordering information:

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

2, please provide the 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.