Liquid turbine flowmeter

Guangzhou Turbine Flow Meter Usage: Brand Dichuan Instruments and Meters 020-85550262

LWGYThe turbine flow sensor is paired with a display instrument to form a turbine flow meter. Sensors have the characteristics of high accuracy, good repeatability, long lifespan, and simple operation. It can be widely used in industries such as petroleum, chemical, metallurgy, and papermaking to measure the instantaneous flow rate and total volume of liquids.

Characteristics of Guangzhou turbine flowmeter:

The pressure loss is small, and the impeller has anti-corrosion function.

Has high resistance to electromagnetic interference and vibration, reliable performance, and long working life.

Adopting advanced ultra-low power single-chip microcomputer technology, the whole machine has strong functions, low power consumption, and performance. Intelligent flow display with non-linear accuracy compensation function. The accuracy of the correction formula is better than ±0.02%.

The instrument coefficient can be set online by pressing the button and can be displayed on the screenLCDOn the screen,LCDThe screen is intuitive, clear, and highly reliable.

adoptEEPROMProvide power-off protection for accumulated flow and instrument coefficients. Protection time greater than10Year.

Main technical parameters of Guangzhou turbine flowmeter:

Flow meter specifications, basic parameters, and performance indicators (see Table 2)

Accuracy:0.5Level1.0Grade;

Usage conditions:

　　1Environmental temperature-20℃～50℃;

　　2Relative temperature:5%～95%;

　　3Temperature of the tested medium:-20℃～120℃;

　　4Atmospheric pressure:86Kpa～106Kpa;

　　5Explosion proof grade:ibⅡBT4.

Signal transmission distance: The distance from the sensor to the display can reach1000m.

Electrical characteristics of Guangzhou turbine flowmeter:

1Display mode:

（1）LWGYRemote transmission output type: three wire pulse output (with display instrument);

（2）LWYOn site display type:8bitLCDDisplay cumulative traffic in units（m3）

　 5bitLCDDisplay instantaneous flow rate in units（m3/h）

（3）LWGBRemote transmission output type: two-wire system4～20mASignal output (capable of displaying instantaneous flow rate on-site).

2Output function:

（1）LWGYType pulse output,p-pThe value is determined by the power supply;

（2）LWYType with pulse output or4~20mATwo wire current output;

（3）LWGBtype4~20mATwo wire current output (can be4Digital display of instantaneous flow rate.

3Power supply:

（1）LWGY：DC5~24V；

（2）LWY：3VLithium batteries installed inside the instrument panel can be used continuously for more than eight years;

（3）LWGB：DC24V.

2、 Characteristics of Guangzhou turbine flowmeter products

1.High precision, generally up to ±1%R, ±0.5%RThe high-precision type can reach ±0.2%R；

2.Good repeatability, short-term repeatability can be achieved0.05%~0.2%,It is precisely because of its good repeatability that it can be obtained through regular calibration or online calibration

The accuracy of flow meters is the preferred choice in trade settlement;

3.Output pulse frequency signal, suitable for total measurement and computer connection, no zero drift, strong anti-interference ability;

4.Can obtain high frequency signals（3-4kHz）Strong signal resolution;

5.Wide range, capable of reaching medium to large diameters1:20The small caliber is1:10；

6.Compact and lightweight structure, easy installation and maintenance, and high circulation capacity;

7.Suitable for high voltage measurement, there is no need to open holes on the instrument body, making it easy to make high voltage instruments;

8.There are various types of specialized sensors that can be designed according to the specific needs of users, such as low-temperature, bidirectional, downhole, sand mixing, etc;

9.Can be made into an insertion type, suitable for measuring large diameters, with low pressure loss, low price, can be removed without interruption, and easy installation and maintenance.

Basic parameter table of Guangzhou turbine flowmeter

type number say bright

LWGY/T─ □ □ □ □ □ □ □

Nominal Diameter

4Standard flow range0.04～0.25m3/h The wide range is0.04～0.4m3/h

6mm, standard flow range0.1～0.6m3/h The wide range is0.06～0.6m3/h

10mm, standard flow range0.2～1.2m3/h The wide range is0.15～1.5m3/h

15mm, standard flow range0.6～6m3/h The wide range is0.4～8m3/h

25mm, standard flow range1～10m3/h The wide range is0.5～10m3/h

40mm, standard flow range2～20m3/h The wide range is1～20m3/h

50mm, standard flow range4～40m3/h The wide range is2～40m3/h

80mm, standard flow range10～100m3/h The wide range is5～100m3/h

100mm, standard flow range20～200m3/h The wide range is10～200m3/h

150mm, standard flow range30～300m3/h The wide range is15～, 300m3/h

200mm, standard flow range80～800m3/hThe wide range is40～800m3/h

Type none

Basic type,+12VPower supply, pulse output, high level ≥8VLow level ≤0.8VA 4～20mATwo wire current output, remote transmission type

B Battery powered on-site display type

C On site display/4～20mATwo wire current output

accuracy class 05 precision0.5level

10 precision1level

Turbine

Type W Wide range turbine

S Standard turbine

1The instrument installation adopts flange connection, threaded connection and clamping type;

　　2During installation, the direction of liquid flow should be consistent with the direction indicated by the arrow on the sensor housing, and the upstream straight pipe section should be ≥20DNThe downstream straight pipe section should be ≥5DN（DNFor the inner diameter of the pipeline.

　　3Sensors should be kept away from external magnetic fields. If unavoidable, necessary measures should be taken;

　　4In order to avoid affecting the normal transportation of liquids during maintenance, bypass pipelines should be installed outside the straight pipe sections at both ends of the sensor (as shown in Figure 4);

　　5When installing sensors outdoors, please ensure that the amplifier plug is waterproofed;

　　6The wiring of sensors and display instruments should be selected according to the power supply of the amplifier. Please refer to the relevant "user manual" for details.

Figure 1LWGY—4～10Schematic diagram of sensor structure and installation dimensions

Figure 2LWGY—15～40Schematic diagram of sensor structure and installation dimensions

Figure 3LWGY—50～200Schematic diagram of sensor structure and installation dimensions

Figure 4 Reasonable installation method

Model and specification description of Guangzhou turbine flowmeter:

For example:LWGY-50-BE: indicates a caliber of50mm,Explosion proof, clip on turbine flow sensor;

　　LWGB-50: indicates a caliber of50mm,Turbine flow transmitter.