DN500 biogas metering instrument

DN500 biogas metering instrumentIntroduction

vortex flow meterMeasurement media: saturated steam, superheated steam, liquid, gas

Ø Accuracy level: Accuracy of 0.5 to 2% depends on Reynolds number, generally ± 1.0% (R) for liquids; Gas, steam

±1.5%（R）±0.3%（R）

Ø Working pressure: ≤ 1.6Mpa or ≤ 2.5Mpa or ≤ 6.4Mpa

Ø Fluid temperature: (-40 ℃, 150 ℃), (-40 ℃, 250 ℃), (-40 ℃, 350 ℃)

Ø Output signal: Three wire pulse or two-wire 4-20mA standard current

Ø Working power supply: DC12V or DC24V

Working environment: Temperature: (-40 ℃, 50 ℃); Humidity:<95% 10-30 ℃

DN500 biogas metering instrumentFunctional Description

1. Excellent seismic performanceIt can automatically recognize vibration signals and flow signals

2. It has seismic alarm function. Under normal flow conditions, the LED indicator light on the amplification board lights up to indicate normal flow, and outputs a pulse signal. Under non flow conditions, the indicator light goes out and pulse output is prohibited

Simultaneously output pulse signals with and without seismic treatment

The surface mount technology used in 4 makes the volume of the front plate small and the structure compact

5 universal design, suitable for various calibers of liquid and gas media (20)mm—300mm）．

6 wide voltage operating range, 9V—12V．

Strong output driving capability, driving current>100mA．

Humanized design of 8, easy to operate and use

9 circuit design, wide range ratio, no self excitation

DN500 biogas metering instrumentInstallation precautions

1. The installation position should be selected as much as possible in a location without pipeline vibration or with low vibration, and the vibration acceleration should not exceed 2g. If the vibration is large, vibration reduction measures should be taken;

2. There must be sufficient straight pipe sections upstream and downstream of the sensor

3. The maintenance valve is installed upstream of the sensor, and the flow control valve is installed downstream of the sensor;

4. Try to choose a location that is easy to install and maintain;

5. Choose a location with a dry environment;

6. Sensors can be installed on horizontal or vertical pipelines. But when installed on a vertical pipeline, the medium must flow from bottom to top.

7. Sensors should be installed indoors as much as possible. When they must be installed outdoors, attention should be paid to waterproofing. Cables outside the amplifier box should be bent into a U-shape;

8. Sensors should be kept away from electrical noise, such as high-power frequency converters, high-power transformers, motors, and high-power wireless transceivers.

During welding, it is necessary to ensure that the flange end face is perpendicular to the centerline of the pipeline;

10. The location where the distance between the installation holes is relatively large is the installation position of the meter pole, and the direction of the two flange installation holes should be consistent;

After the flange welding is completed, the pipeline should be cleaned thoroughly and there should be no welding slag or other debris inside.

12. Select the installation location and cut off the front and rear straight pipe sections of appropriate length according to Figure 2, as well as the pipe section of length L1 (as shown in Figure 5 and Table 5);

13. Weld a flange on each of the front and rear straight pipe sections, add sealing gaskets on both ends of the sensor, and use double headed bolts to connect the sensor to the flange (note that the direction of the arrow on the body should be consistent with the direction of fluid flow);

14. Weld the front and rear straight pipe sections of the sensor onto the original pipeline.

The instruments produced by Shanghai Anjun includeGas ultrasonic flowmeter, gas turbine flowmeter, gas waist wheel flowmeter, vortex flowmeter, thermal gas mass flowmeter, liquid turbine flowmeter, electromagnetic flowmeter, vortex flowmeterVCone flowmeter, balance flowmeter, ultrasonic flowmeter, metal tube rotor flowmeter, elliptical gear flowmeter and other series of flowmetersAEMSeries intelligent detectorWe can provide free electronic and printed materials!

The installation method of turbine flowmeter displayed on the Shanghai Anjun website is open for discussion