Ultrasonic gas meter

Ultrasonic gas meter is a fully electronic gas meter that uses the principle of time difference method for flow measurement. It has the characteristics of accurate measurement, wide range ratio, wide temperature adaptation range, small size, high reliability, and has the function of temperature and pressure compensation. The product adopts a fully independent research and development program to break the monopoly of foreign technology and realize the independent control of key technologies.

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Product Description

Product introduction:
Ultrasonic gas meter is a fully electronic gas meter that uses the principle of time difference method for flow measurement. It has the characteristics of accurate measurement, wide range ratio, wide temperature adaptation range, small size, high reliability, and has the function of temperature and pressure compensation. The product adopts a fully independent research and development program to break the monopoly of foreign technology and realize the independent control of key technologies.

Product features:
• Accurate measurement: full flow point electronic calibration, high-precision correction
Range ratio width: 0.016~6 m/h wide range measurement
• Wide temperature adaptation range:-25~55 ℃ wide temperature range accurate measurement
Temperature and pressure compensation: real-time temperature and pressure compensation, reduce gas loss, reduce supply and marketing difference
Safety gas monitoring: it has a variety of gas safety warnings such as abnormal large flow gas consumption, slight leakage, continuous constant flow gas consumption, and no gas for many days.
• Small size: relatively small size membrane table, easy to install
• High reliability: fully electronic metering, no moving parts

Technical advantages:
• Independent research and development of ultrasonic flow channel
• Independent research and development of transducer
• Autonomous algorithm of domestic metering chip
• Independent research and development of flow verification equipment, sealing testing equipment, automatic production line

Technical parameters:

Parameter Class	Parameter Item	Unit	Model
			G1.6	G2.5	G4
Flow parameters	Minimum flow (Qmin)	m³/h	0.016	0.025	0.04
	demarcation flow	m³/h	0.25	0.4	0.6
	Maximum flow rate (Qmax)	m³/h	2.5	4	6
	Accuracy class		1.5 level
temperature and pressure compensation	temperature compensation		There are
	Pressure compensation		There are
Pressure parameters	Maximum working pressure	kPa	10
	pressure loss	Pa	<250
Environment	Working temperature	℃	-25 ℃ ~ 55 ℃
	Humidity range	%RH	≤ 93% RH
LCD display	Display digits		9
	Maximum display range (LCD display)	m³	999999.99
	Minimum instantaneous flow (LCD display)	L/h	0.1
	Maximum instantaneous flow (LCD display)	m³/h	99.999
Power supply (battery)	Battery Type		Dry battery (1 year) Built-in lithium battery (10 years)
Measurement	Measurement method		Ultrasonic
Valve	Valve control		Support remote valve control, can realize different permission valve control, including common off valve, authority off valve Industry mainstream motor valve
	Valve closing time	Seconds	<1 second
	Durability		The number of continuous switching shall not be less than 10000
Communication mode	Communication mode		NB-IoT infrared bluetooth
Base table	Base table		Steel shell/Aluminum shell
	Thread		M30*2
	Center distance	mm	130
Whole machine protection	Protection level		IP65
Media Requirements			Air, natural gas

Dimensional drawing