It is a metering instrument to continuously measure, record and display volume of water flowing through sensor by use of ultrasonic time difference method.
Main Technical Parameters
Caliber(mm)
DN15
DN20
DN25
DN32
DN40
L(mm)
165
195
225
180
200
L1(mm)
260
300
346
305
330
W(mm)
95
95
95
95
95
H(mm)
86
86
89
100
120
Pipe thread connection
R1/2
R3/4
R1
R1 1/4
R1 1/2
Water meter thread
G3/4
G1B
G1 1/4
G1 1/2
G2B
Nominal diameter(mm)
15
20
25
32
40
Max flow Q4(m³/h)
3.125
5
7.87
12.5
20
Nominal flow Q3(m³/h)
2.5
4
6.3
10
16
Transitional flow Q2(m³/h)
0.02
0.032
0.05
0.08
0.128
Min flowQ1(m³/h)
0.0125
0.02
0.032
0.05
0.08
Start-up flow(m³/h)
0.005
0.005
0.008
0.01
0.015
Max flow
999999.99
Measuring range
Q3/Q1, R200/（R250 customizable）
Accuracy class
Class B
Pressure loss class
≤0.063 MPa
Working pressure
1.6 MPa
Temperature class
T50
Temperature range
(5~55)℃
Environment class
Indoor,Class B
Electromagnetic class
E1(Residential, Commercial, Industrial)
Power supply
Built-in lithium battery DC 3.6V
Battery life
＞ 10years
Installation position
Any angle
Display
LCD, 8 digits + additional characters
Flow profile sensitivity class
U10/D5
Communication interface
RS485 modbus/ LoRa
Protection class
IP67/IP68
Features
Low initial flow rate, wide range ratio, high measurement accuracy and stable operation
There are no moving parts and flow-blocking elements inside, and it is not affected by impurities in the water and has a long service life
The ultrasonic water meter output communication function is complete, meeting various communication and wireless networking requirements
The ultrasonic water meter has excellent small flow detection ability, can solve many problems of traditional water meters, is more suitable for water fee gradient charging, and is more suitable for saving and rational use of water resources
IP68 protection level, can adapt to various harsh installation environments. Not affected by impurity, chemicals and magnetic materials in medium.
Installations
Flush pipes before installation to avoid gravels and other foreign objects;
Install a valve and filter before the water meter;
Do not touch the electrical part or pull wires to avoid damage during installation;
When the water meter is installed in a horizontal or inclined way, the ultrasonic flow probe on pipes shall be placed horizontally, and when installed in a vertical way, make sure the water flows from down to up.
Please note that the arrow direction on the pipe shall be consistent with the water flow direction during installation;
The joint washer shall be installed correctly to avoid misaligned washer blocking water and affecting accuracy of the water meter;
The water meter shall not be installed at the place that may be affected by strong mechanical vibrations;
Special Notices: Be sure to install an on-off valve and filter before the water meter and another on-off valve is recommended after it for maintenance.In order to prevent back flow, a check valve should be installed in front of or behind the water meter.
When installing the water meter, should be reserved length of DN*10 in front of the water meter. Or should be reserved the length of DN*5 behind the water meter;
The water meter shall refresh the display at every 4s, and read the water meter (including the starting value and end value) 4s at least after the valve is closed when test the water meter, otherwise the testing results may be affected;
Please make sure the medium flow is within the flow range of the water meter during test and use, otherwise it may result in damage to the water meter;
In case of any malfunction (e.g. metering failed, etc.) during use, please contact the related management department immediately and do not repair it by yourself;
The product is designed with a disposable anti-disassembly seal which shall be removed only by appointed personnel, or otherwise it shall be excluded from the free after-sales service.
