Domestic Thermal Gas Meter

Main Features 

  1. Standard volume output, No additional temperature and pressure compensation needed

  2. Working condition volume output, based on real-time temperature and setting pressure value

  3. No moving components, long-term stability

  4. Compact design, smaller size to install easily

  5. Resistance to 120℃ ambient temperature

  6. Dynamic multi-tariff

  7. Remote valve operation

  8. Remote upgradeable firmware

  9. Field swappable battery

  10. Easy operation and maintenance through advanced 3 touch-button human-machine interface.

  11. Kinds of communications module are available for various markets

  12. Design in accordance to smart metering equipment technical specifications

 

1.jpg

 

Measurement Principle

The measurement principle is based on a MEMS "Micro Thermal Flow Sensing". The Fig 1 has shown that there is a micro-heating element and two temperature sensors are placed around it. The temperature difference between the two sensors will be created when the flow rate increases and it is proportional to the mass flow rate.

Back

  Technical Parameters

Type

JGM1.6S-G

JGM2.5S-G

JGM4S-R

JGM6S-R

G1.6

G2.5

G4

G6

Measuring range

(0.016~2.5) m3/h

(0.025~4) m3/h

(0.04~6) m3/h

(0.06~10) m3/h

Standard Temperature for Volume Output

15℃ (Other standard temperature on request )

Standard Pressure for Volume Output

1013.25mbar

Accuracy Class

1.5

Measuring Accuracy

Qmin≤Q<Qt, -3%≤E≤+3%

Qt≤Q≤Qmax, -1.5%≤E≤+1.5%

Measurement Resolution

0.1L

Operating Temperature Range

-25℃ to 55℃

Max. Operating Pressure

0.5bar (Valve operation up to 0.1bar )

Max. Pressure Drop

< 2mbar at Qmax

Ingress Protection

IP65

ATEX

EX II 3C Exic IIA T3 Gc (Zone 2)

Gas application

2nd Family Group H and L  (EN 437)

Valve

Compliancy with EN16314

Communications

GPRS / Zigbee / wM-BUS

Display

Matrix LCD ( with backlight)

Battery Life

≥15 years

Back

Dimensions

smart thermal gas meter 2.jpg

A (mm)

152.4

110

130

B (mm)

158

C (mm)

232

200

200

D (mm)

177

E (mm)

66

66.5

66.5

Nominal Diameter DN

G1 1/4

G1 1/4

M30*2

Weight (kg)

1.7

1.6

1.6

 

Back