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Taizhou Durui Metering Co., Ltd
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NFC/STS prepaid gas meter

NFC/STS prepaid gas meter

Main Features

- Prepaid and using control

- Meet STS protocol standards

- Credit accumulation

- Presentation of gas status, credit accumulation and surplus credit

- Data protection

- Voltage checking and low-voltage warning

- Valve automatic closing when in low voltage or out of power

- Reminding insufficiency of gas

- Magnet attack protection

  • Product overview
  • Technical parameters
  • Size chart

NFC/STS prepaid gas meter

NFC/STS prepaid gas meter deemed as the smart measuring instrument based on the diaphragm gas meter, with installing controlling valves, electrical controls and NFC card operation system, which remains metering accuracy of mechanic meters and at the same time realizes automated management. The NFC/STS prepaid gas meter, with compact structure and advanced technology, is convenient to operate and reliable in usage.

NFC/STS prepaid gas meter is a main device, which helps city gas companies and gas users realize the scientific and automated management of supply and use. The NFC card has prepaid function and the credit and surplus credit can be displayed through the LCD. NFC/STS prepaid gas meter is applicable for the metering of artificial coal gas, natural gas, and liquefied petroleum gas.

The product meets the requirements of the EN1359:1998/A1:2006 and OIML R137( edition 2012) standards.

Technical parameters

Items

Unit

G1.6

G2.5

G4

Nominal flow-rate

m3/h

1.6

2.5

4.0

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

1.2

Accuracy


Class 1.5

Casing materials


Steel or Aluminum

Approvals


EN1359 & EN16314

Total pressure loss

Pa

≤250

Max working pressure

bar

 0.5

Error

Qmin≤Q<0.1Qmax

%

±3

0.1Qmax≤Q≤Qmax

%

                                      ±1.5

Display range min.

dm3

0.2

Display range max.

m3

99999.999

Operation temperature

-25 to +55

NFC card service life

Frequency

≥10000

Valve life

Frequency

≥10000

Battery type

V

Lithium battery: DC 3.6V (1pc )

Alkaline battery: DC6.0V (4 pcs 5# )

Static working current

μA

10

Data acquisition


Pulse ( Reed or Hall sampling counting )

Explosion proof grade


EXib IIBT3 Gb

Degree of protection


IP65

Sizes

Model

H

L

D

B

S

Weight

G1.6/G2.5/G4

224mm

195mm

67mm

169mm

130(110)mm

2.20Kgs

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