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Taizhou Durui Metering Co., Ltd
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NB-IoT smart gas meter

NB-IoT smart gas meter

Features

■ Compliant with EN1359, OIML standards.

■ Integrated designing of gas meter and valve.

■ Long-term accuracy and reliability.

■ IP65 degree, suitable for outdoor installation.

ATEX certificated for enclosure protection.

  • Product overview
  • Technical parameters
  • Size chart

NB-IoT smart gas meter

This is a smart diaphragm gas meter based on the mechanical diaphragm gas meter combined with a built-in shut-off valve and a smart controller with NB-IoT communication module.

The product is to realize the functions of ultra long distance, ultra-low power consumption, real-time online wireless remote control and remote meter reading by installing NB-IoT communication module and SIM card. It enables gas utilities to read a meter without entering the home. The gas utilities can manage the information of residential and meters through NB-IoT application system, to a great extend saving the cost of manual meter reading.

The product meets the requirements of the EN1359:2017, OIML R137:2012, IP65 degree & ATEX standards.

Technical Specifications

Items

Unit

G1.6

G2.5

G4

Max flow-rate(Qmax)

m3/h

2.5

4.0

6.0

Min flow-rate(Qmin)

m3/h

0.016

0.025

0.04

Cyclic volume

dm3

1.0

1.2

Accuracy


Class 1.5

Body & Housing material


Aluminum or Steel

Flow direction


Left to right ( marked on the meter body )

Center to center dimension

mm

130 or 110

Threads of inlet and outlet


M30x2 ( by customized )

Total pressure loss

mbar

≤2

Maximum working pressure

bar

0.5

Error

Qmin≤Q<0.1Qmax

%

±3

0.1Qmax≤Q≤Qmax

%

±1.5

Minimum data recording

m3

0.002

Maximum data recording (Totalizer )

m3

99999.999

Operation temperature

-25 to +55

Battery type


Lithium battery

Battery voltage

V

3.6V

Battery life


10 years ( one time upload a day)

Communication mode


NB-IoT

Explosion proof grade


II3G Ex ia/ib/ic IIA T3

IP degree


IP65

Mounting position


Vertical

Coupling meter type


Brass, Thread BSP

Coupling meter size


3/4” or 1”

Dimensions

Model

H

L

D

B

S

M

Weight

G1.6

196mm

193mm

65mm

164mm

130mm

M30x2

1.73kgs

G2.5

220mm

205mm

73mm

178mm

130mm

M30x2

1.95kgs

G4

220mm

205mm

73mm

178mm

130mm

M30x2

1.95kgs

 

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