Features
1.Base meter conforms to GB /T778.1~3-2007 Standard.
2.Wide range of meter reading : Low power Lora Wan wireless communication technology.
3.On site installation & maintenance easily : No wiring, Wireless module and base meter with split structure.
4.IP68 waterproof grade : Adopts dual protection of integral structure seal and gummed seal.
5.Save Power : Uses wireless single wake-up & single reading mechanism,6 years working life of lithium battery.
6.Early Alarm: low voltage battery, sensor failure.
7.Wireless concentrator can load 1000 water meters and support remote upgrade function.
8.Support multistage relay, special repeater built in large capacity lithium battery, the meter is also a relay, used in the field where there is wireless communication dead-angle.
Diameter(DN)mm
15
20
25
Overload flow rate
(Q4)m³/h
3.125
5
7.785
Normal flow rate
(Q3)m³/h
2.5
4
6.3
Transitional flow rate
(Q2)m³/h
0.05/0.04
0.08/0.064
0.126/0.1
Min. flow rate
(Q1)m³/h
0.032/0.025
0.05/0.04
0.078/0.063
Accuracy:
Low region max. allowable error:
From Q min inclusive up to but excluding Qt is±5%.
High region max. allowable error:
From Qt inclusive up to and including Q max is±2%.
Diameter(DN)
Length
(mm)
Width
(mm)
Height(mm)
Connection thread
L
W
H1
H2
d
D
15
165
88
119
144
R1/2
G3/4B
20
195
88
119
144
R3/4
G1B
25
225
88
119
144
R1
G1 1/4B