Overview
The small water meter is an advanced residential ultrasonic water meter manufactured by Viewshine. It employs cutting-edge technology to measure water flow by utilizing non-contact ultrasonic signals. This measurement method ensures high accuracy and a wide measurement range. With the absence of mechanical transmission mechanisms, the water meter minimizes pressure loss, leading to a longer lifespan and enhanced reliability. Leveraging ultrasonic technology, it can detect the lowest flow rate of 2L/h, providing customers with an optimal solution for non-revenue water management.
Main Features
1. Expanded Dynamic Range: With R400/R250 options, the water meter covers a wider dynamic range, allowing accurate measurement across various flow rates.
2. U0/D0 Compatibility: The water meter seamlessly integrates U0/D0 functionality, ensuring precise metering without the need for additional components.
3. Lowest Flow Rate Detection: Capable of detecting flow rates as low as 2L/h, enabling accurate measurement even for minimal water usage.
4. Impurity and Magnetic Field Resistance: The water meter remains unaffected by impurities or magnetic fields, guaranteeing reliable measurements regardless of water quality or external factors.
5. Extended Lifespan: Designed for long-term use, the water meter boasts a lifespan of 12+ years, reducing the frequency of replacements and enhancing overall reliability.
6. Versatile Installation: The water meter offers both vertical and horizontal installation options, accommodating diverse plumbing configurations.
7. LCD Display: Equipped with an LCD display, the water meter presents clear and easily readable information, enabling real-time monitoring of water usage.
8. IP68 Protection: Featuring an IP68 protection rating, the water meter is highly resistant to dust and environmental factors, ensuring reliable performance in challenging conditions.
Main Functions
1. Accurate Metering: Precise and reliable measurement.
2. Comprehensive Data Recording: Capturing essential data.
3. Convenient Local Optical Port: Easy access to meter parameters and readings.
Technical Parameters
|
Type |
U-WR |
|
|
Size |
DN15 |
DN20 |
|
Range and Capacities |
||
|
Q3 |
2.5 m³/h |
4.0 m³/h |
|
Q4 |
3.125 m³/h |
5.0 m³/h |
|
Q2 |
10 L/h |
16 L/h |
|
Q1 |
6.25 L/h |
10 L/h |
|
Qstart |
2L/h |
|
|
Dynamic Range |
R250/R400 |
|
|
Standard |
ISO4064:2014/ OIML: R49-2013 |
|
|
Electrical |
||
|
Battery |
3.6V, Li-battery |
|
|
EMC |
E1 |
|
|
Mechanical |
||
|
Environmental Classification |
Outdoor |
|
|
Protection Class |
IP68 |
|
|
Medium Temperature |
0.1~50℃(T50) |
|
|
Storage Temperature |
-25~60℃ |
|
|
MAP |
1.6MPa | |
|
Metrological |
||
|
Accuracy |
±5% in range Q1≤Q<Q2 ±2% in range Q2≤Q≤Q4 |
|
|
Head Loss |
0.4bar @ Q3 |
|
|
Communication |
||
|
LoRa RF |
LoRaWAN Class A |
|
|
NB-IoT |
Standard |
|
|
Pulse Output |
Customized |
|
Dimension

|
DN |
L(mm) |
Meter Thread |
Pipe Thread |
Extension Pipe Used |
L2(mm) |
H(mm) |
H1(mm) |
|
15 |
110 |
G¾B |
R½ |
None |
82 |
19.5 |
87 |
|
115 |
G¾B |
R½ |
None |
82 |
19.5 |
87 |
|
|
130 |
G¾B |
R½ |
G¾B×20 |
82 |
19.5 |
87 |
|
|
165 |
G¾B |
R½ |
G¾B×55 |
82 |
19.5 |
87 |
|
|
190 |
G¾B |
R½ |
G¾B×80 |
82 |
19.5 |
87 |
|
|
20 |
110 |
G1B |
R¾ |
None |
82 |
22 |
90 |
|
115 |
G1B |
R¾ |
None |
82 |
22 |
90 |
|
|
165 |
G1B |
R¾ |
G1B×55 |
82 |
22 |
90 |
|
|
190 |
G1B |
R¾ |
G1B×80 |
82 |
22 |
90 |
|
|
220 |
G1B |
R¾ |
G1B×110 |
82 |
22 |
90 |
Quality Control
To ensure the highest quality standards, we have dedicated QC personnel stationed on our production line to conduct inspections. All of our products undergo thorough inspection before they are delivered to our customers. We implement a comprehensive quality control process that includes both in-line inspections and final inspections.
1. Rigorous Raw Material Inspection: As soon as the raw materials arrive at our factory, they undergo meticulous inspection to ensure their quality and suitability for production. We prioritize the use of high-quality materials to maintain the integrity of our products.
2. Comprehensive Production Inspections: Throughout the production process, we conduct inspections of all components, labels, and details to verify their accuracy and adherence to our quality standards. This meticulous attention to detail guarantees the reliability and performance of our products.
3. Packaging Detail Inspections: We also pay close attention to packaging details during the production process. Our inspections encompass every aspect of packaging, ensuring that it is secure, protective, and visually appealing.
4. Thorough Final Inspections: Before our products are released for delivery, they undergo a final inspection to assess their overall quality and packaging. This final evaluation ensures that every product leaving our facility meets our stringent quality standards and arrives at our customers' hands in perfect condition.
Our commitment to quality control at every stage of the production process reflects our dedication to delivering superior products to our customers. By conducting thorough inspections, we maintain the highest levels of quality and ensure that our customers receive products that meet their expectations.
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