Introductions
This is an intelligent mechanical water meter that can read water meter data remotely.
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;
- 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 in a vertical way, 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 accuracy of the water meter;
- The water meter shall not be installed at the place that may be affected by strong mechanical vibrations;
- 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.In order to prevent back flow, 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 at every 4s, and read the water meter (including the starting value and end valve) 4s at least after the valve is closed when test 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.
