A+KThe wireless electromagnetic water meter, as a new generation of flow measurement system, is widely used in water management scenarios such as raw water production, large user trade, and community assessment due to its high precision, wide range, low initial flow rate, and wireless remote transmission function. This article will provide systematic guidance to users from three dimensions: installation specifications, operating methods, and daily maintenance.

1、 Installation specifications: key steps to ensure measurement accuracy

1. Selection of points and requirements for straight pipe sections

The installation location must meet the requirementsUpstream straight pipe section≥5Double the diameter of the pipe（5DN）Downstream straight pipe section≥3Double the diameter of the pipe（3DN）Standardize to eliminate vortex interference in water flow. for example, inDN100In the pipeline, upstream needs to be reserved0.5Meter straight pipe section, downstream0.3Rice. If there is vibration in the pipeline, fixed supports should be added on both sides of the instrument to prevent mechanical vibration from affecting measurement stability. For pipelines equipped with regulating valves, the upstream straight pipe section needs to be extended to10DNDownstream to5DNTo ensure the stability of the flow field.

2. Installation direction and posture

Sensors can be installed horizontally, vertically, or diagonally, but the following principles must be followed:

Vertical installation: The flow direction must be from bottom to top to avoid medium sedimentation or bubble accumulation;

Horizontal installation: The electrode axis should be approximately horizontal, with a maximum tilt angle not exceeding45°To prevent signal interruption caused by electrode covering the medium;

Tilt installation: It is necessary to ensure that the measuring tube is always filled with the measured medium to avoid a semi pipe flow state.

3. Electrical Connection and Protection

Power configuration: adopts3.6VLithium battery power supply needs to be connected through waterproof joints to avoid exposed wiring;

Communication configuration: SupportsGPRS/NB-IoTWireless transmission, the antenna needs to be installed vertically upwards, away from metal obstacles;

Protection level:IP68The design allows for short-term immersion, but it is necessary to avoid long-term immersion in corrosive liquids.

4. Special working condition handling

High temperature medium: temperature gradeT30/T50Corresponding to the highest working temperature30℃/50℃If the temperature exceeds the limit, a cooling device needs to be installed;

High pressure environment: working pressure levelPN10/PN16Corresponding maximum pressure1.0MPa/1.6MPaOverpressure requires the installation of a pressure reducing valve;

Dirty medium: If measuring liquids containing solid particles, a filter should be installed in front of the instrument to prevent scaling on the inner wall of the sensor.

2、 Operation method: The entire process from startup to data reading

1. Power supply and initialization

Power on: After connecting the power supply, long press“power button”3Seconds, displayed on the LCD screen“Measurement Mode”(The battery icon appears on the right);

Sleep wake-up: To enter sleep mode, use the infrared remote control to“Instrument sleep password”set to23130When awakened, change to00000Restore measurement mode.

2. Parameter setting and calibration

Verification mode: automatically enters verification mode after power on (no battery icon),3Automatically switch to measurement mode without any operation for minutes;

Flow rate correction: enter through the menu key“Flow rate correction point”Set, enter correction factor (range)0.0000～1.9999）Compensate for installation errors;

Zero point calibration: In the air traffic control state, enter“Pressure zero point correction”Menu, enter the current pressure value to complete calibration.

3. Data reading and transmission

Local display: The LCD screen displays real-time forward flow, reverse flow, and net flow, with units available for selectionm³/horL/s；

Remote transmission: throughGPRS/NB-IoTeach10Upload data to the cloud platform every minute, supporting historical data queries and abnormal alerts.

3、 Daily Maintenance: Practical Tips for Extending Service Life

1. regular cleaning

External cleaning: Wipe the watch body with a damp cloth and avoid using corrosive cleaning agents;

Internal cleaning: Disassemble the sensor every six months and clean the inner wall scale with a soft bristled brush to prevent signal attenuation.

2. Electrical inspection

Battery status: When displayed on the LCD screen“Low Battery”When, it is necessary to48Replace lithium batteries within hours;

Line connection: Check the power and signal lines for looseness every quarter to prevent data interruption caused by poor contact.

3. troubleshooting

No traffic display: Check if the power supply is normal or enter through the remote control“Diagnostic Mode”Check the sensor status;

Abnormal data: calibrate the flow rate correction coefficient or check if the straight pipe section meets the specifications.

Conclusion

A+KThe scientific installation and standardized operation of wireless electromagnetic water meters are the core to ensure measurement accuracy. By strictly following the requirements of the straight pipe section, optimizing the installation posture, and regularly maintaining and calibrating, users can achieve efficient water resource management. Its wireless remote transmission function supports remote monitoring and provides reliable data support for the construction of smart water management.