Gas Meter
3.0
Smart Meter
MAIN TECHNICAL PARAMETERS
Main Index
Specification & Type
Main index Specification & type
ZG1.6S-7
ZG2.5S-7
ZG4S-7
Nominal flow-rate (qn)
m³/h
1.6
2.5
4
m 3 /h
Max. flow-rate (qmax)
2.5
4
6
m 3 /h
Min. flow-rate (qmin)
0.016
0.025
0.04
Operating pressure range kPa
0.5~50
Max. permissible error
qt≤q≤qmax qmin≤q < qt
±1.5% ±3%
Total pressure loss
Pa
≤250
m 3
Max. reading
99999.999
m 3
Min. reading
0.0002
dm 3
Cyclic volume
1.2
Working voltage
V
DC6V （ 4pcs #5 Alkaline battery ）
DC3.6V ( Lithium battery: ER 14250)
Clock battery voltage
V
<1 year ( Upload frozen data once a day )
Battery life
Pulse equivalency
0.1 or 0.01
< 30
Static working current
μA
< 200
Communication current
mA
Communication mode
NB-IoT
Protection class
IP 65
CHINT 34
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