Hebei Shanghong Meters Technology Co., Ltd. is one of the leading manufacturers and suppliers of rs485 smart ultrasonic water meters in China. If you're going to wholesale high quality rs485 smart ultrasonic water meters, welcome to get pricelist and quotation from our factory.
Product Description
Our ultrasonic water meter has no moving parts, with high accuracy for years. No moving components in the flow sensor, avoid long-term abrasion of mechanical parts which may result in inaccurate measurement and failure of the meter. Such design is also resistant to impurities, therefore no inspections and maintenance are cost-free.
Product Features
- Low starting rate (5L/h), able to accurately measure;
- Flow rate as low as 12.5L/h;
- Dynamic range (Q3/Q1) achieved 200:1;
- No mechanical moving parts, no abrades, and has a long serving lifetime;
- Small pressure loss;
- Can measure the flow rate;
- High measurement frequency;
- Infrared photoelectric reading interface;
- Capacitive sensing touch;
- Battery ER26500 8500mAh;
- Material: 58 copper, ABS plastic;
- Mounting in any installation position;
- Alarm when there is air;
- Support RS485 modbus/ LoRa/LoRaWAN/NB-IOT; suitable for outdoor installation;
- IP68 protection level;
- Data is not lost in the event of power failure. Data can be saved for more than 10 years and 23 months of historical data can be automatically saved;
- Technical data conform to international standard ISO 4064;
- ISO9001 certification;
- Warranty:2 years.
Outline Dimension Drawing
|
Nominal Diameter |
Length L |
Length L1 |
Width B |
High H |
Connecting Thread |
|
| mm | d | D | ||||
| 15 | 165 | 260 | 95 | 86 | R | G/B |
| 20 | 195 | 300 | 95 | 86 | R | G/B |
| 25 | 225 | 346 | 95 | 89 | R | G/B |
| 32 | 180 | 305 | 95 | 100 | R1 | G1/B |
| 40 | 200 | 330 | 95 | 120 | R1 | G1/B |
Technical Parameter
|
Nominal diameter (mm) |
15 |
20 | 25 | 32 | 40 | ||||
|
Overload flow Q4 (m/h) |
3.125 |
5 | 7.875 | 12.5 | 20 | ||||
|
Permanent 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 | ||||
|
Minimum flow Q1 (m3/h) |
0.0125 | 0.02 | 0.0315 | 0.05 | 0.08 | ||||
|
Start-up flow (m3/h) |
0.005 | 0.005 | 0.008 | 0.01 | 0.015 | ||||
|
Max flow |
999999.999 |
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|
Measuring range |
Q3/Q1, R200/(R250 customizable) |
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|
Accuracy class |
Class 2 |
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|
Pressure loss class |
≤0.04 MPa |
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|
Working pressure |
1.6 MPa |
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|
Temperature class |
T30/T50 |
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|
Temperature range |
(5~55)℃ |
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|
Storage temperature |
-20~60℃ |
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|
Environment class |
Class B |
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|
Electromagnetic class |
E1 |
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|
Power supply |
Built-in lithium battery DC 3.6V |
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|
Battery life |
8-10 years |
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|
Battery capacity |
8500mAh |
||||||||
|
Power consumption |
10μA |
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|
Installation position |
Any angle |
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|
Display |
LCD, 8 digits additional characters |
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|
Installation pitch |
U10/D5 |
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|
Communication Interface |
RS485 modbus/ LoRa/LoRaWAN/NB-IOT |
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|
Protection class |
IP68 |
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Working Principle
Ultrasonic water meter is a new type of water meter that can detect the time difference caused by the change of speed when the ultrasonic beam propagates in the water upstream and downstream, analyze and deal with the flow rate of water, and then calculate the flow rate of water further.
Notices for Installation
- Flush pipes before installation to avoid gravel 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 vertically, 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 the accuracy of the water meter;
- The water meter shall not be installed at a place that may be affected by strong mechanical vibrations; Special Notices:
1. 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. To prevent backflow, a check valve should be installed in front of or behind the water meter.
- Before using this water meter, the pipe must be filled with water, otherwise, it will lead to inaccurate or even non-measurement;
- 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 every 4s, and read the water meter (including the starting value and end value) 4s at least after the valve is closed when testing 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.
Factory
Packaging and Inventory
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FAQ
Q: Can ultrasonic water meters measure accurately?
Q: How do ultrasonic water meters communicate?
Q: What are the special requirements for installing an ultrasonic water meter?
Q: What certifications have our ultrasonic water meters received?
Q: Can the accuracy of ultrasonic water meters reach R400?
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