Introductions
This is an intelligent mechanical water meter that can read water meter data remotely.WESDUN is a manufacturer specializing in the production of Remote read water meter;DN15 water meter;Intelligent water meter.
Main Technical Parameters
Nominal Caliber（mm） | Q3/Q1 | Overload FlowQ4 | Nominal FlowQ3 | Transitional FlowQ2 | Minimum FlowQ1 |
| m³/h | |||||
| 15 | R100 | 3.125 | 2.5 | 0.04 | 0.025 |
| 20 | R100 | 5 | 4 | 0.064 | 0.04 |
| 25 | R100 | 7.875 | 6.3 | 0.1 | 0.063 |
| Working Temperature | T30 | ||||
| Working Pressure | ≤1.0MPa | ||||
| Pressure Loss | ≤0.063MPa | ||||
| Installation environment | Class B | ||||
| Electromagnetic environment | E1 | ||||
| Flow profile sensitivity class | U10 / D5 | ||||
| Working Voltage | DC（9-24）V | ||||
| Static working current | ≤1.5 mA | ||||
| Meter reading working current | ≤10mA | ||||
| Valve on/off working current | ≤25mA | ||||
| Communication interface, protocol | RS485 modbus | ||||
| Nominal caliber | Length L | Length L1 | Width B | Height H1 | HeightH | Connection | |
| d | D | ||||||
| 15 | 258 | 165 | 85 | 110.5 | 193 | R1/2 | G3/4 |
| 20 | 299 | 195 | 85 | 110.5 | 193 | R3/4 | G1 |
| 25 | 345 | 225 | 85 | 110.5 | 193 | R1 | G1 1/4 |
Features
- Mechanical readout and electronic readout are accordant due to direct reading from the dial register.
- Power supply is not needed during ordinary operations, no power consumption , instant power source required only while meter reading.
- Use of advanced data coding and verification technology that assures high
- communication reliability.
- Large flow capacity, small pressure loss, detachable construction for easy
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;
- Install the water meter horizontally or at an angle, and mount the ultrasonic flow probe horizontally. When installing vertically, ensure water flows from the bottom upward.
- Please note that the arrow direction on the pipe shall be consistent with the water flow direction during installation;
- Install the joint washer correctly to prevent misalignment from blocking water flow and affecting the meter’s accuracy.
- Do not install the water meter in places exposed to strong mechanical vibrations.
- Install an on-off valve and filter upstream of the water meter, and fit a second on-off valve downstream for convenient maintenance. To prevent backflow, install a check valve either before or after the water meter.
- Before using this water meter, fill the pipeline with water. Otherwise, the meter will measure inaccurately or even stop measuring entirely.
- When installing the water meter, reserve a length of DN*10 upstream and DN*5 downstream of the meter.
- The water meter refreshes its display every 4 seconds. When testing the water meter, wait at least 4 seconds after closing the valve before reading the values (including the start and end values), otherwise the test 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.
