High Precision CNG Turbine Flow Meter for Gas Station

 Measurement of Gas Flow in Closed Pipes - Gas Turbine Flowmeter (GB / T8940-2003)
Instrument diameter (mm) and connection
 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 are flanged
 25,40,50 can be threaded connection
Accuracy class
 ± 1.5% R (± 1% R need special) 
Measuring range ratio
 1:10; 1:20; 1:30
Instrument material
 Body: 304 stainless steel or cast aluminum
 Impeller: anti-corrosion ABS or high-quality aluminum alloy
 Converter: cast aluminum
Conditions of Use 
 Medium temperature: -20 ºC ~ +80 ºC
 Ambient temperature: -30 ºC ~ +60 ºC
 Relative humidity: 5% ~ 90%
 Atmospheric pressure: 86Kpa ~ 106Kpa
Working power
 A. External power supply: + 24VDC ± 15%, ripple ≤ ± 5%, suitable for 4-20mA output, pulse output, RS485, etc.
 B. Internal Power: A group of 3.0V10AH lithium battery, the battery voltage at 2.0V ~ 3.0V can work normally.
 Undervoltage indication occurs when the voltage is below 2.0
Machine energy consumption
 External power supply: <1W
 Internal power: average power consumption ≤ 1W, can be used continuously for more than three years.
Signal output function
 Pulse signal, 4-20mA current signal, control signal
Communication output function
 RS485 communication
Real-time recording function
 Start-stop record, daily record, regular interval record
Signal connection
 Internal thread M20 × 1.5 or other
Explosion-proof grade
 Exd II BT6 or Exia II CT4
Degree of protection
 IP6

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