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XIAMEN YOUME ELECTRIC CO., LTD.

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Stock:	1000 Pieces
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Specifications

Natural gas meter
can be used in calculating petro-gas, natural gas, oil-gas and other kind of gas.

Natural gas meter

1. Introduction

IC card Pre-paid Gas Meter can be used in calculating petro-gas, natural gas, oil-gas and other kind of gas. It is a kind of automatic gas meter equipped with electronic control device on the basis of diaphragm gas meter, which complies with the national standard GB/T6968-97 (class B) and OIML-R31.

This kind of gas meters enjoy the features of residual gas indication, automatic detection of valve, anti-magnetic & anti-unauthorized card attacks, leakage protection, Gas Theft-proof, and alarming of under-voltage of battery.

Almost all the gas companies have difficulty with collecting fees from every consumer, but the appearance of IC card Pre-paid gas meter and advanced Gas Selling Management System are convenient to numerous gas companies for reducing the cost, labor intensity and promoting the after-sale service, efficiency and management.

2. Basic Information

2.1Reference Standard:

(a) OIML R31 - 1995

(b) GB/T6968 - 1997

2.2 Operating Conditions:

a. Maximum Working Pressure : 300 mbarg

b. Operating Pressure : 20 mbarg to 30 mbarg

c. Operating Temperature : -20oC to 50oC

d. Relative Humidity : 98% at 30oC

e. Permissible error : a. Qmin≤Q≤0.1Qmax =± 3%

0.1Qmax≤Q≤Qmax =± 1.5%

b. Repeatability: ± 0.1%

f. Turn down Ratio : 100: 1

g. Environmental Status : Safe Guard is provided with the meter IP-67.

h. Intrinsic Safety : EEX ia ⅡA T4.

3. Characteristics

a) Reference standard is ISO7816-3 synchronous protocol.

b) Answer-to-reset register.

c) High security Memory Including Anti-wire Tapping.

d) Authentication protocol.

e) Authentication Attempts Counter.

f) Specific Passwords for Read and Write.

g) Passport Attempts Counters.

h) Selectable Access Rights by Zone.

i) ISO Compliant Packing.

j) High Reliability.

k) Low-Power CMOS.

l) Low-Voltage Operation: 2.7 V to 5.5 V.D.C.

m) On-time calculation and display of the balance amount left

n) Automatic Control Function: Turning on/off gas supply value according to the situation of prepayment storage and gas Consumption

4. Technical Parameters

4.1 Meter Capacity Range CG-L-J1.6: 0.016 m3/h to 2.5 m3/h

CG-L-J 2.5: 0.025 m3/h to 4 m3/h

CG-L-J4: 0.04 m3/h to 6 m3/h

CG-L-J6: 0.06 m3/h to 10 m3/h

CG-L-J10: 0.10 m3/h to 16 m3/h

CG-L-J16: 0.16 m3/h to 25 m3/h

CG-L-J25: 0.25 m3/h to 40 m3/h

CG-L-J40: 0.40 m3/h to 65 m3/h

CG-L-J65: 0.65 m3/h to 100m3/h

2.2 Connection Size

Inlet and outlet connection size: CG-L-J1.6: 3/4″×3/4″

CG-L-J 2.5: 3/4″×3/4″

CG-L-J4: 3/4″×3/4″

CG-L-J6: 1″×1″

CG-L-J10: 1″×1″

CG-L-J16: 2″×2″

CG-L-J25: 2″×2″

CG-L-J40: 2″×2″

CG-L-J65: 2″×2″

2.3 Key Technical Parameters of IC card Pre-paid Gas Meter

Items		Unit	Technical parameters
Type			CG-L-J1.6	CG-L-J2.5	CG-L-J4		CG-L-J6
Max. flux		m3/h	2.5	4.0	6.0		10.0
Min. flux		m3/h	0.016	0.025	0.04		0.06
Pressure loss (max)		Pa	250
Working pressure range		kPa	0.5~30
Max. operating current(instantaneous )		mA	160				260
Max. allowable	qmin≤q≤0.1qmax	%	±3
	0.1qmax≤q≤qmax	%	±1.5
Min. measurement	Mechanical meter	m3	0.001			0.01
	LCD	m3	0.01			0.1
Operating voltage(4.5V)		V	Three alkaline batteries (used for alkaline battery gas meter)
Using times of IC card		times	>100000
Using life of IC card socket		times	>10000