Cut-off type ultrasonic gas meter

On the basis of the ultrasonic gas meter, the cut-off ultrasonic gas meter adds safety monitoring functions such as leakage alarm linkage, overpressure/loss of pressure monitoring, abnormal temperature monitoring, overcurrent, slight leakage, abnormal gas consumption, etc. The valve in the gas meter is used to replace the external valve. When abnormal conditions occur, the gas meter will quickly cut off the valve. At the same time, the gas meter will report the alarm information to the customer management platform and the user's mobile phone in real time to realize the closed loop of safety management.

Key words:

Classification:

Ultrasonic Industrial Gas Meter

E-Mail:

sale@qd-ies.com

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Product Description

Product introduction:

Product features:
Overpressure cut-off: If the pipeline pressure reaches 8KPa ± 2KPa, cut off the valve and give an alarm.
• Loss of pressure cut off: detect the pipeline pressure reached 1KPa ± 0.2KPa, cut off the valve and alarm
• Leakage alarm linkage cut off: use wired or Bluetooth linkage with the alarm, when leakage occurs, cut off the valve and alarm
High temperature alarm: the ambient temperature is higher than 75±1 ℃, cut off the valve and alarm
Low temperature alarm: the ambient temperature is lower than -25±1 ℃, cut off the valve and alarm
Flow 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.
• Accurate measurement: full flow point electronic calibration, high-precision correction
Range ratio width: 0.016~6 m/h wide range measurement

Technical advantages:
• Independent research and development of ultrasonic flow channel
• Independent research and development of transducer
• Independent research and development of flow verification equipment, sealing testing equipment, automatic production line
• High precision temperature and pressure detection scheme

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
Overpressure detection	Pipeline pressure	kPa	8kPa ± 0.2kPa (configurable)
Pressure loss detection	Pipeline pressure	kPa	1KPa ± 0.2 KPa (configurable)
High temperature alarm	Ambient temperature	℃	75 ℃ (configurable)
Low temperature alarm	Ambient temperature	℃	-30 ℃ (configurable)
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		Aluminum/Steel Shell
	Thread		m³0*2
	Center distance	mm	130
Whole machine protection	Protection level		IP65
Media Requirements			Air, natural gas

Dimensional drawing