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Open Channel Flow Meter

Model：

HD-MQ20

Introduction：

Open Channel Flow Meter (Ultrasonic Open Channel Flow Meter) measures the flow, cumulative volume and water level of liquids in open channels online. With IP65/IP68 protection, it is widely used for sewage, irrigation and industrial drainage....

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  • Technical Specifications
  • Product video

Product Introduction

The Ultrasonic Open Channel Flow Meter is suitable for long-term online measurement of various liquid flows. The main unit has a protection rating of IP65 and the sensor has IP68. The main unit and sensor are installed separately; the main unit can be installed indoors, in an instrument cabinet or on an instrument panel, and the sensor is installed on a measuring bracket. The main unit and sensor are connected by a dedicated ultrasonic cable. It can achieve precise measurement of instantaneous flow, cumulative flow and liquid level height.

It is widely used in sewage treatment, agricultural irrigation, domestic wastewater discharge, water conservancy, metallurgy, chemical engineering, aquaculture, rivers, energy and other industries. It can also be used for production monitoring, water balance commissioning and energy-saving monitoring, and is an important flow measurement instrument in the production process.

Product Features

1. Equipped with a high-resolution color LCD and a nearly 7-hour data-to-graph function, making data more intuitive and clearer;

2. Wide compatibility; suitable for all standard channel and flume types;

3. Reliable stability, capable of long-term online measurement with maintenance-free operation;

4. Internal parameters such as the blind zone support manual modification, allowing shielding of nearby interference sources;

5. The sensor has a built-in temperature sensor, achieving real-time temperature compensation of measured values for more accurate measurement;

6. Supports 485 communication / 4-20 mA analog output / HART protocol / NB, GPRS, LORA communication (optional functions);

Main Unit Technical Parameters

ItemSpecification
Liquid Level Range≤5 m
Instantaneous FlowDetermined by the specification of the weir/flume used
Cumulative Flow0-999999 m³
Resolution0.1 m³ or 0.1 L/s
Accuracy1-3% channel/flume accuracy
Blind Zone0.3-0.5 m
Scattering Angle6-12°
Temperature CompensationAutomatic temperature compensation
Output4-20 mA / relay / RS-485
Power Supply VoltageAC220V or DC24V (choose one)
Working Temperature-20 - 70 ℃
Protection RatingIP65 (transmitter), IP68 (sensor)
Ambient Humidity<85%
Installation MethodBracket installation, flange installation
Cable Length10 m standard; dedicated ultrasonic cable used, signal transmission distance can be extended by more than 200 m
The video is currently in production, please stay tuned......
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