Wide Range Ultrasonic Water Meter Smart Wireless Digital Water Meter
A wide-range ultrasonic water meter is a type of smart meter that uses ultrasonic waves to measure water flow without any mechanical moving parts. It can achieve high accuracy and a large range ratio.
What are the ways to measure the flow of ultrasonic water meters?
Doppler shift: This method uses the frequency change of ultrasonic waves reflected by particles or bubbles in the fluid to measure the flow velocity.
Transit-time: This method measures the time difference between ultrasonic signals sent upstream and downstream along a path across the pipe. The time difference is proportional to the flow velocity.
Velocity difference: This method measures the radial transit time difference between two pairs of transducers located at different positions along a pipe. The radial transit time difference is related to both axial and radial flow velocities.
Technical Parameter
|
Nominal diameter |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
Max flow Q4 |
31.25 |
50 |
78.75 |
125 |
200 |
312.5 |
500 |
787.5 |
1250 |
|
(m³/h) |
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|
Nominal flow Q3(m³/h) |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
1000 |
|
Transitional flow Q2(m³/h) |
0.25 |
0.4 |
0.625 |
1 |
1.6 |
2.5 |
4 |
6.25 |
10 |
|
Min flowQ1 |
0.156 |
0.25 |
0.39 |
0.625 |
1 |
1.56 |
2.5 |
3.9 |
6.25 |
|
(m³/h) |
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|
Start-up flow |
0.1 |
0.16 |
0.252 |
0.4 |
0.64 |
1 |
1.6 |
2.25 |
4 |
|
(m³/h) |
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|
Max flow |
9999999.9 |
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|
Reverse flow |
9999999.9 |
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|
Measuring range |
Q3/Q1, R160 |
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|
Accuracy class |
Class B |
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|
Pressure loss |
≤0.063 MPa |
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|
Working pressure |
MAX 1.6 MPa |
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|
Temp class |
T50 |
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|
Temp range |
(5~55)℃ |
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|
Installation ENV |
Indoor, Class B |
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|
Elec ENV |
E1(Residential, Commercial, Industrial) |
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|
Power supply |
Built-in lithium battery DC 3.6V |
||||||||
|
Battery life |
＞ 10years |
||||||||
|
Installation position |
Horizontal or Vertical |
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|
Display |
LCD, 8 digits + additional characters |
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|
Installation pitch |
U10/D5 |
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|
Interface |
RS485 Modbus/ Pulse output |
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|
Protection class |
IP68 |
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Common Faults and Treatment Measures
|
Common malfunctions |
Problem |
Handling method |
|
LOW BATT |
Low battery |
Contact supplier |
|
TEMPER |
The temperature sensor is damaged |
Contact supplier |
|
Common malfunctions |
Problem |
Handling method |
|
BACKFLOW |
Reverse flow |
Install the check valve |
|
LEAK |
Drip/small flow at night |
Check the pipeline |
|
DRY |
Partially full tube/damaged sensor |
Exhaust the air in the pipe/contact the manufacturer |
|
Nominal Diameter |
Length L |
Width B |
Hight H |
Flange Connection |
||
|
Flange Diameter |
Bolt Circle Diameter |
Bolt Size—M |
||||
|
DN50 |
200 |
170 |
215 |
170 |
125 |
4—M16 |
|
DN65 |
200 |
185 |
220 |
185 |
145 |
4—M16 |
|
DN80 |
225 |
200 |
235 |
200 |
160 |
8—M16 |
|
DN100 |
250 |
220 |
255 |
220 |
180 |
8—M16 |
|
DN125 |
250 |
250 |
285 |
250 |
210 |
8—M16 |
|
DN150 |
300 |
285 |
335 |
285 |
240 |
8—M20 |
|
DN200 |
350 |
340 |
405 |
340 |
295 |
12—M20 |
|
DN250 |
450 |
405 |
470 |
405 |
355 |
12-M24 |
|
DN300 |
500 |
460 |
525 |
460 |
410 |
12-M24 |
Application
1. Residential water metering: Wide-range ultrasonic water meters are commonly used in residential buildings to measure water usage accurately and bill customers accordingly.
2. Commercial water metering: Wide-range ultrasonic water meters are used in commercial buildings, such as office buildings, hotels, and shopping centers, to measure water usage and ensure accurate billing.
3. Industrial water metering: Wide-range ultrasonic water meters are used in a variety of industrial applications to measure water usage, monitor process flows, and ensure efficient use of water resources.
4. Irrigation water metering: Wide-range ultrasonic water meters are used in irrigation systems to accurately measure water usage and optimize irrigation schedules, resulting in improved crop yield and reduced water waste.
5. Water distribution network monitoring: Wide-range ultrasonic water meters are used in water distribution networks to monitor water flow rates, detect leaks, and identify areas of high water consumption.
Daily Maintenance
1. Regular patrol inspection should be conducted to check the operating status and to see if the voltage of the battery is normal or not after the flow meter is installed.
2. Specialized person should be resorted to having the battery changed when the flow meter operates for more than 10 years or less than 10 years but the monitor shows unclear data or the voltage indicates “V”, in a case affecting the normal performance of the meter.
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