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Ultrasonic Gas Meter

USM Series

USM Series Ultrasonic Gas Flow Meter G2.5-G65 is the smart meter that adopts TOF (Time of Speed) principle to measure flow velocity of gas medium, with built-in temperature & pressure (≥G6) compensation and smart software algorithm, consumed gas volume can be calculated and displayed on meter’s screen.
Optional GPRS or NB-IoT wireless communication allows reading gas volume and arranging top-up remotely. Gas leakage check system realized by built-in shut-off valve can guarantees user safety by automatically cutting off gas supply in case of inconspicuous leakage.
USM series are widely applied for natural gas metering in residential, commercial and industrial fields.

Segment: Gas Flowmeter
Division: Ultrasonic Gas Meter

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Features

PCT patent for ultrasonic gas flow meter module
Built-in temperature and pressure (≥G6) compensation
Class 1.5 accuracy with intelligent software algorithm for air, 100% CH4, H1 and different natural gases
Anti-contamination, long-term stability of accuracy
Digital display for cumulative gas volume, instant flow rate, temperature, work mode, etc.
Built-in shut-off valve for stopping gas supply in case of error conditions
No moving part, no mechanical wear that leads to degradation of accuracy, no maintenance cost;
No magnetic induction elements, free from magnetic field effect
Small size, light weight, easy installation
Compliant to OIML R137 and MID
GPRS and NB-IoT optional

Specifications

Model	USM-G2.5/64	USM-G6/G10/G16	USM-G25/G40/665
Measurement Range	USM-G2.5: 0.025~4 m³/h [0.88~ 141.26 ft³/h] USM-G4: 0.04~6 m³/h [1.41~ 211.88 ft³/h]	USM-G6: 0.06~10 m³/h [2.12~353.14ft³/h] USM-G10: 0.1~16 m³/h [3.53~565.02 ft³/h] USM-G16: 0.16~25 m³/h [5.65~882.85 ft³/h]	USM-G25: 0.25~40 m³/h [8.83~1412.6 ft³/h] USM-G40: 0.4~65 m³/h [14.13~2295.41 ft³/h] USM-G65: 0.65~100 m³/h [22.95~3531.4 ft³/h]
Accuracy	Class 1.5
Error	Qmin≤Q<0.1Qmax: ±3%; 0.1Qmax≤Q≤Qmax:±1.5%
Battery	3.6V Lithium battery
Connector Type	Screw thread, G1-1/4 or M30*2	Screw thread, G1-1/2	Screw thread, G2 or G2-1/2
Dimensions	239151102mm	246204110.5mm	330248167mm
Weight	1.1kg	2.3kg	4.0kg
Center Distance of Connectors	130mm	150mm	180mm
Working Pressure	0~50kPa / 0~7.25psi
Working Temperature	-20℃~55℃ / -68℉~131℉
Storage Temperature	-30℃~70℃ / -86℉~158℉
Protection Class	Aluminum case: IP54 Steel case: IP65	IP65

For more details, please feel free to contact our sales: info@gasanalyzer.com.cn.