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Detailed description of the natural gas flowmeter

Detailed introduction of natural gas flowmeter
1. Measurement medium: natural gas, gas, nitrogen, compressed air and other gases.
2. Integrating the flow sensor and the intelligent flow totalizer to realize the display and output function of the working condition flow;
It integrates flow, temperature, pressure sensor and intelligent flow totalizer to realize temperature/pressure compensation of flow, correction of compression factor and display and output of volume flow under standard conditions.
3. Double-row liquid crystal displays cumulative flow and instantaneous flow;
4, built-in +3V lithium battery power supply, the average work is 38μA, when the external +24VDC power supply, the internal power supply automatically switches.
5. After the instrument is powered off, the internal parameters are stored for a long time.
6, a wide range of measurement, the range of degrees: 10:1 ~ 20:1;
7. The front straight pipe section only needs 3D (D is the inner diameter of the pipe), and the straight pipe section is 1D to ensure the metering accuracy.
8. There is no moving parts in the sensor. The detecting component is not directly in contact with the measured medium, and the performance is stable, the reliability is high, and the service life is long.
9. Accuracy: ±1.0%, ±1.5%; repeatability; indication value ±0.3%.
10. Output signal: (1) OC gate pulse;
(2) 4-20 mA current signal;
(3) RS-485 communication interface
11, ambient temperature: -30 ° C ~ +60 ° C; medium -20 ° C ~ +130 ° C; ? ambient humidity: 5% -95% RH.
12. Working pressure: 0-1.6Mpa.
13. Specifications (pipe inner diameter): 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200 mm.
14. Housing material: stainless steel (1Cr18Ni9Ti).
15. Explosion-proof mark: ExdIIBT4.
16. Pressure loss; ΔP=1.079*10-6*ρ*v2 (wherein: ΔP: pressure loss MPa; ρ: density of the measured medium kg/m3; V: flow rate m/s of the measured medium).

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