Jgu-X40ws Industrial and Commercial Ultrasonic Smart Gas Meter G40W

• Customization: Available
• Kind: Intelligent Gas Meter
• Precision Grade: 1.5
• Model NO.: JGU-X40WS
• Starting Flow: <0.5m³/h
• Type: G40W
• Qmax: 65
• Qmin: 0.25
• Accuracy Class: 1.5
• Max Working Pressure(Kpa): 50
• Working Temperature: -25~+55
• Ingress Protection Level: IP65
• Communication Mode: Nb-IoT/GPRS
• Trademark: Goldcard
• Origin: China
• HS Code: 9028101000
• Production Capacity: 3, 000, 000 PCS/Year

Product Description

Product Overview

1. Product description:

Ultrasonic Smart Gas Meter was developed based on ultrasonic measurement technology, which adopts compact design without moving parts, it has the advantages of high reliability, high accuracy, wide measurement range ratio, etc.

2. Working principle:

Ultrasonic Smart Gas Meter calculates the gas flow rate by measuring the time differences between Tl(U1→U2)and T2(U2→U1),then modifies the gas flow rate according to the cross sectional area of the flow channel.

3. Features:

1) Metering Advantages:

• Smaller & Lighter: Smaller and lighter than diaphragm meter ofthe same type.
• Ultra-High Sensitivity: Subtle gas flow can be detected.
• Wide Range Ratio: G4W can be up to 375:1, G40W can be up to 260:1.
• High Reliability: No moving parts,nolosses of measurement accuracy in long term operation.
• Strong Anti-Interference Ability: Digital metering signal output, undisturbed by magnetic field.
• Temperature&Pressure compensation: Built-in temperature&pressure sensor, outputting cumulative volume under STP (Standard Temperature and Pressure).

2) Gas Safety:

• Over Flow Detection: Meter will close valve automatically at over flow rate to prevent pipe broken.
• Reverse Flow Detection: When detects reverse gas flow, meter will close valve automaticallyin case of meterinstalled wrongly.
• Continuous Flow Detection: When detects continuous flow, meter will close valve automatically in case of forgetting to turn off the gas appliance and to prevent pipe leakage.
• High Temperature Detection: When detects gas temperature above the high temperature
  alam threshold,meter will close the valve automatically and report to the system in case of meter in fire envirnment.
• Air Ingress Detection: When detects air ingress, meter will close the valve automatically and report to the system in case of illegal disassembling from pipe.
• Water Ingress Detection: When detects water ingress, the valve will close automatically to ensure pipe network safety.
• Meter Disassembling Detection: When detects battery cover opened or controller disassembled, meter will record a log and report to the system.

4. Solution architecture:
5. Technical parameters:

Type	G1.6	G2.5	G4	G4W	G6	G10	G10W	G16	G16W	G25	G40	G40W
Qmax(m^3/h)	2.5	4	6	6	10	16	16	25	65	40	65	65
Qmin(m^3/h)	0.016	0.025	0.04	0.016	0.06	0.1	0.06	0.16	0.1	0.25	0.4	0.25
Pressure Absorption (Pa)	≤250						≤375
Communication Mode	NB-IoT/GPRS/Sigfox/LoRaWAN						NB-IoT/GPRS
Accuracy class	1.5
MPE	Qmin ≤Q≤Qt: -3%≤E≤+3%; Qt≤Q≤Qmax:-1.5%≤E≤+1.5%
Max. Working Pressure (kPa)	50- base meter
Working Temperature (°C)	-25~+55
Ingress Protection level	IP65
Valve Lifetime (time)	≥10000
Battery Life (year)	≥10

*GPRS-communicate once every 10 days.
NB-loT-communicate once every 3 days.
LoRaWAN-communicate once per day.
Sigfox-communicate once per day.
*Battery life varies at different installation environment and communication frequency.

6. Dimensions: