Portable Open Channel Flow Meter

Product Introduction

The Portable Open Channel Flow Meter is a high-precision measuring instrument designed for hydrological monitoring, river flow monitoring, agricultural irrigation and municipal water supply and drainage industries. It supports measurement of 10 weir/flume types. It adopts ultrasonic technology and a special micro-power design scheme, combined with all-digital signal processing technology, ensuring measurement stability and reliability. The device has a wide measurement range and high measurement accuracy, and supports real-time data display, data recording, export and printing. It is easy to operate with high accuracy, and is very suitable for occasions requiring frequent movement for measurement. At the same time, it is based on the JJG711-1990 verification regulation and references the relevant requirements for flow monitoring units in HJ353-2019, HJ354-2019, HJ355-2019 and HJ15-2019 for comparison acceptance, ensuring its applicability and accuracy in water conservancy engineering, environmental monitoring, agricultural irrigation and other fields.

Application Scope

Water conservancy engineering departments: monitoring the water flow velocity and flow of rivers, channels and reservoirs;

Environmental protection departments, water quality monitoring stations and related environmental protection enterprises: using such equipment to monitor the flow velocity and flow of urban drainage systems and industrial wastewater discharge;

Third-party testing institutions: on-site calibration and comparison of online open channel flow meter instruments and equipment;

Emergency management departments: rapid assessment of water flow conditions to provide data support for flood control and disaster reduction.

Executive Standards

1. JJG711-1990 Open Channel Weir and Flume Flowmeters

2. HJ15-2019 Technical Requirements and Testing Methods for Ultrasonic Open Channel Sewage Flowmeters

3. HJ353-2019 Technical Specification for Installation of Online Monitoring Systems for Water Pollution Sources (CODCr, NH3-N, etc.)

4. HJ354-2019 Technical Specification for Acceptance of Online Monitoring Systems for Water Pollution Sources (CODCr, NH3-N, etc.)

5. HJ355-2019 Technical Specification for Operation of Online Monitoring Systems for Water Pollution Sources (CODCr, NH3-N, etc.)

Product Features

1. Supports measurement of 10 weir/flume types (triangular weir, rectangular weir, equal-width weir, Parshall flume, no-throat flume, rectangular broad-crested weir, round-edged broad-crested weir, triangular profile weir, flat V-shaped weir, trapezoidal thin-plate weir);

2. High-precision signal acquisition module combined with a filtering algorithm for accurate measurement data;

3. Real-time display and recording of ambient atmospheric pressure and temperature values, incorporated into the data system through an algorithm for higher data credibility;

4. 7-inch color LCD screen with touch-guided operation for a simple operating process;

5. Adopts a high-performance data processor for fast data processing;

6. Features continuous measurement with customizable measurement duration;

7. With curve display, allowing intuitive viewing of liquid level and flow change trends during measurement;

8. The instrument has a built-in miniature thermal printer, allowing on-site printing of measurement reports;

9. Large-capacity data storage, capable of storing up to 10,000 historical measurement records;

10. Data can be exported directly to a USB flash drive for convenient statistical analysis by users;

11. Built-in large-capacity lithium battery; one charge allows 48 hours of continuous measurement;

12. Features GPS, BeiDou and QZSS positioning, accommodating different user needs;

13. Features WiFi connection, supporting remote OTA program upgrade;

14. Password-protected startup, effectively protecting measurement comparison data and results;

15. Suitcase design, lightweight overall, convenient to carry, waterproof rating IP65.

Technical Parameters