Product Details

LWGYNseriesPulse type turbine flowmeterTurbine flow sensor, turbine flow meter pulse output, battery powered turbine flow meter, current output turbine flow meter, intelligent turbine flow meter,Special offer for turbine flow meters, Guangzhou turbine flow meters, liquid flow sensors, water flow sensors, and tap water flow metersPulse type pure water turbine flowmeter

1summary:

LWGYNseriesPulse type turbine flowmeterIt is composed of turbine flow sensors and display instruments, and is manufactured by our factory using advanced foreign technology. It is a liquid metering deviceOne of the flow meters. Flow meters have the characteristics of simple structure, high accuracy, and easy installation, maintenance, and use. This product is widely used in petroleum, chemical, metallurgical, water supply, papermaking, environmental protection, food and other fields, and is suitable for measuring stainless steel in closed pipelines1Cr18Ni9Ti、2Cr13And corundumAl₂O₃Hard alloy is a liquid that does not corrode and has no impurities such as fibers or particles. If used in conjunction with display instruments with special functions, it can be used for automatic quantitative control, over limit alarm, and other purposes;

IIProduct features:

■The sensor is a hard alloy bearing thrust type, which not only ensures accuracy but also improves wear resistance;

■The structure is simple, sturdy, and easy to disassemble and assemble;

■Wide measurement range, low lower limit flow rate;

■Low pressure loss, good repeatability, and high accuracy;

■Has high resistance to electromagnetic interference and vibration;

IIIworking principle:

The fluid flows through the sensor housing, and due to the angle between the blades of the impeller and the flow direction, the impulse of the fluid causes the blades to have a rotational torque. After overcoming the friction torque and fluid resistance, the blades rotate, and after the torque is balanced, the speed stabilizes. Under certain conditions, the speed is proportional to the flow velocity. Due to the magnetic permeability of the blades, they are in the signal detector positionIn a magnetic field composed of magnetic steel and coils, rotating blades cut magnetic field lines, periodically changing the magnetic flux of the coil, thereby inducing electrical pulse signals at both ends of the coil. This signal is amplified and shaped by an amplifier to form a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to a display instrument to display the instantaneous flow rate and cumulative amount of the fluid. Pulse frequency within a certain flow rangefInstantaneous flow rate of fluid flowing through the sensorQDirectly proportional, the flow equation is:Q=3600×f/k;

In the formula:

f——pulse frequency[Hz]；

k——Instrument coefficient of sensors[1/m³]Provided by the verification form.

Q——Instantaneous flow rate of fluid (under working conditions)[m³/h]；[1/L]As a unit;

3600——Conversion factor;

The instrument coefficient of each sensor is filled in the calibration certificate by the manufacturer,kBy setting the values into the corresponding display instrument, the instantaneous flow rate and cumulative total amount can be displayed;

4Main technical performance:

■Nominal diameter:（4～200）mmBasic parameters are shown in Table 1;

■Medium temperature:（-20～80）℃、 （-20～120）℃；

■Environmental temperature:（-20～55）℃；

■accurate true Degree:±0.2%、±0.5%、±1%；

■Detector signal transmission line system: three wire voltage pulse (three core shielded cable);

■Output voltage amplitude: high level≥8V, low level≤0.8V；

■Transmission distance: The distance from the sensor to the display instrument can reach1000rice；

■Body material:304、 （316L）；

■Impeller material:2Cr13(Titanium plating treatment, duplex steel);

■Bearing material: Hard alloy;

■Connection methods: thread, flange, flange clamp, sanitary clamp interface;

■Flange standard: National standard;

■working pressure:1.6～2.5MPa（10-25MPaHigh voltage requires customized processing;

■Protection level:IP65Explosion proof rating:ExdIIBT6；

TABLE I

5、 Usage:

■When using, the tested liquid should be kept clean and free of impurities such as fibers and particles.

■At the beginning of use, the sensor should be slowly filled with liquid before opening the outlet valve (which should be installed at the back of the flowmeter). It is strictly prohibited for the sensor to be impacted by high-speed fluid when it is in a liquid free state.

■The maintenance cycle of sensors is generally six months. During maintenance and cleaning, please be careful not to damage the parts inside the measuring chamber, especially the impeller. Please pay attention to the position relationship between the guide components and the impeller during assembly.

■When the sensor is not in use, the internal liquid should be cleaned, dried, and protective covers should be added at both ends of the sensor to prevent dust and dirt from entering, and then stored in a dry place. (This is very important)

■The matched filter shall be cleaned regularly, and the internal liquid shall be cleaned when not in use. Like the sensor, it shall be sealed with dust cover and stored in a dry place.

■The transmission cable of the sensor can be laid overhead or buried underground (iron pipes should be covered when buried underground)

■Before installing the sensor, first connect the wires to the display instrument or oscilloscope, turn on the power, blow or manually turn the impeller to quickly rotate and observe whether there is a display. When there is a displayReinstall the sensor.If there is no display, check the relevant parts and eliminate the fault. Pulse type pure water turbine flowmeter