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Domestic Ultrasonic Water Meter

 
Model:  DUWM
Size:  1/2”(DN15) to 1 1/2”(DN40)
 
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Quantity:

YOUWIN Domestic Ultrasonic Water Meter is specially designed for domestic water metering applications where conventional water meters fail due to harsh environment, solids in water, performance degradation, magnetic vandalization or incapable of leakage detection.


The meter offers the most advanced water flow measurement by using state-of-the-art ultrasonic technology. Its flow sensor does not have any moving parts that can wear or tear, which provides a robust and accurate meter with no maintenance.


The technical specifications of the meter meet the standards for residential utility metering with its Class 2 performance, operational temperature from 0.1°C to 50°C and safety temperature up to 90°C, as well as nominal pressure of 1.6MPa. The wide dynamic range allows for a load up to double the rating, thereby ensuring high operation security. The large LCD can display the flow total, leakage alarm,reverse flow, and more. The meter also has a remote readout which could be configured as infrared,pulse,M-Bus.


The Residential Ultrasonic Water Meter stands out among its competition due to its robust performance, patented sensor design, tamper-proof feature, multiple AMR / AMI options and capability to detect very low flowrate. It works reliably even when the water has particles and the environment is harsh.Residential installations can profit from the advantage of the wear-free water flow measurement, namely, precision,operation security and long service life.


Operating Principle:

The water meter consists of a flow sensor and an integrator. The flow sensor is a flow-cell made from brass (figure below.) Two ultrasonic transducers, A and B, are firmly mounted on the flow-cell at optimal

positions, with two reflectors inside of the flow tube. The ultrasonic signal generated by one transducer is directed toward the flow direction by the reflector below it. When the ultrasonic signal reaches to the other reflector,it is redirected to the transducer above it. Therefore, each transducer can receive the signal sent from another transducer.


An integrator (or calculator) controls the two ultrasonic transducers to transmit and receive ultrasound in an orderly fashion so as to conduct precise flow measurement.Specifically, the integrator operates the two transducers to simultaneously transmit a pulse of ultrasonic energy into the water flow. The pulse signal travels along the flow and reaches to the other transducer under the guidance of the two reflectors. Obviously, the downstream pulse (from A to B) travels faster than the upstream pulse (from B to A). The travel time (or transit-time) difference of the two pulses is directly proportional to flow velocity.Therefore, the flowrate can be derived from the transit-time difference accordingly


The meter has used advanced digital signal processing technology to precisely measure the transit-time of each ultrasonic pulse. A statistic algorithm is also used to counter interference which could come from solids or air bubbles in the water. The flow-cell is optimally designed according to our patented technology, so that the multimode reflection in the flow tube is significantly attenuated. It allows significant increase in signal strength and quality, thus, the robustness of the system. The flowrate calculation is based not only on transit-time difference and the geometry of the flow-cell,but also on fluid dynamics theory.


Only ultrasonic pulses are used to interrogate the flow which enables the meter to have no moving parts. Therefore, there is nothing to wear out or cause a reduction in accuracy In addition, the principle is based on the transit-time difference instead of transit-time, all the interfering factors, such as the temperature, pressure, solids concentration and water quality, are cancelled out. The end result is that the system is inherently robust!



图片1


Automatic Meter Reading

The Domestic Ultrasonic Water Meter offers a variety of interface options, such as M-Bus, RS485 with Modbus, Pulse. It is flexible to be integrated into an AMR/AMI system or a drive-by system.


We also offers a complete range of AMR/AMI solutions as well as an integrated billing system. Our Capture system is a cutting edge fixed automatic meter reading system which integrates wired AMR/AMI technologies. The system provides a unified platform for meter reading and data management through M-Bus networks, GSM networks, GPRS networks, as well as TCP/IP networks. In addition, it works seamlessly with our billing software to make data exchange easy, fast and reliable.


Features & Benefits:

18WT Domestic Ultrasonic Water Meter, Single, Double or Four Channels for optional

18WT Residential potable water consumption metering

18WT Temperature compensated for cold water as well as hot water up to 90°C (194°F)

18WT No moving parts. Wear-free ultrasonic technology

18WT Durable, proven brass sensor body. Solves the challenges in harsh environments

18WT Patented sensor design. provides precise signal, robust performance, and is not impacted by water impurity

18WT Excellent long-term stability with consistent performance.Accuracy does not degrade over time

18WT Maintenance-free

18WT Leakage detection

18WT Tamper-proof design. Records when tampering is detected

18WT Not affected by magnetic interference

18WT Does not measure entrained air in pipe

18WT Bi-directional flow

18WT Low pressure drop

18WT Free positioning for installation

18WT Large LCD, 8 digits display

18WT More than 6 years battery life

18WT IP 68 water-proof

18WT Available AMR/AMI and Billing solutions



Technical Characteristics

Item

Unit

Detailed data

Nominal fiameter

mm

15

20

25

32

40

Overlaod fLow Q4

m³/h

3.125

5

7.875

12.5

20

Permanent flow Q3

m³/h

2.5

4.0

6.3

10

16

Turndown Ratio Q3/Q1

160

200

160

200

160

200

160

200

160

200

Tansitional flow Q2

m³/h

0.025

0.02

0.04

0.032

0.063

0.05

0.1

0.08

0.16

0.128

Minimum flow Q1

m³/h

0.016

0.013

0.025

0.02

0.039

0.032

0.063

0.05

0.1

0.08

Accuracy class

Class 2

Temperature class

T30、T50、T70、T90

Working pressure

MPa

1.6

Pressure class

MAP10

Pressure loss class

△p63

Flow profile sensitivity class

U10/D5

Climate & Mechanical environment class

Class B;

Installation Position

Horizontal or vertical(Down water supply)


Installation Specs & Dimension:

Nominal diameter

Length L

Length L1

Width B

Height H

Connection Thread

mm

Thread connector d

Thread meter D

DN15

258

165

95

95

R

GB

DN20

299

195

95

100

R

G1B

DN25

345

225

95

108

R1

G1B

DN32

305

180

95

120

R1

G1B

DN40

330

200

95

125

R1

G2B


Dimensional Diagram


图片2




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Add : Fengcheng Village, Jishigang Town, Haishu District,Ningbo City, Zhejiang Province, China
Phone : 0086-574-88086291
E-mail : sales@youwinmeter.com
Whatsapp : 0086-13306629606

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   Add : Fengcheng Village, Jishigang Town, Haishu District,Ningbo City, Zhejiang Province, China
    Phone : 0086-574-88086291
      Mobile: 0086-13306629606
      Mobile: 0086-18067419161
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