Portable open channel flowmeter

1.Portable open channel flowmeter product introduction:

Portable open channel flowmeter is a meter that uses ultrasonic level meter and measures natural fluid flow with measuring sink, which is used to continuously monitor the flow of sewage in the open channel and accumulate the flow.Portable open channel flowmeter is a high-precision measurement instrument designed for hydrological monitoring, river flow monitoring, agricultural irrigation and municipal water supply and drainage industries.It adopts ultrasonic technology and special micro-power design solutions, combined with full digital signal processing technology, to ensure the stability and reliability of measurement.The device has a wide measuring range and high measurement accuracy, and supports real-time data display, data recording, export and printing functions.It is simple to operate and has high accuracy, making it very suitable for occasions where frequent movement is required for measurement.At the same time, it compares and accepts the relevant requirements of the flow monitoring unit in accordance with JJG711-1990 verification regulations and refers to HJ353-2019, HJ354-2019, HJ355-2019 and HJ15-2019, ensuring its applicability and accuracy in water conservancy engineering, environmental monitoring, agricultural irrigation and other fields.

2.Portable open channel flowmeter application scope:

Water conservancy engineering department: monitor the water flow velocity and flow rate of rivers, channels, and reservoirs;

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

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

Emergency management department: Rapidly assess water flow conditions and provide data support for flood prevention and disaster reduction.

3.Portable open channel flowmeter execution standards:

JJG711-1990 "Open channel weir trough flowmeter";

HJ15-2019 "Technical Requirements and Test Methods of Ultrasonic Open Channel Sewage Flowmeters";

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

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

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

4.Portable open channel flowmeter product features:

1.Suitable for four types of weir troughs: triangular weir, rectangular weir, equal width weir and Bachelor trough;

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

3.7-inch color LCD display, touch-guided operation, simple operation process;

4.Adopt high-performance data processors to quickly process data;

5.With curve display, you can intuitively view the liquid level and flow change trends during measurement;

6.The instrument comes with a micro thermal printer, which can print measurement reports on site;

7.Large-capacity data storage, up to 10,000 historical measurement data can be stored;

8.The data can be exported directly to the USB flash drive to facilitate users to conduct statistical analysis of the data;

9.Built-in large-capacity lithium battery, which can be measured continuously for 48 hours on a single charge;

10.Suitcase-style design, the whole machine is lightweight, easy to carry, and the waterproof level is IP65.

11.The GPS positioning function is standard, and Beidou positioning or other positioning functions can also be customized;

12.It has WIFI connection function and supports remote OTA upgrade program;

13.Enter the power-on password to effectively protect the measurement and comparison data and results;

5.Portable open channel flowmeter technical parameters

1.Flow measurement range: 0~40m3/s;

2.Liquid level measurement range: 10cm~1m;

3.Flow measurement error: ≤±1%;

4.Liquid level measurement error: ±0.5mm;

5.Built-in battery specifications: 12.6V/4.8Ah, standby time > 48 hours;

6.External charger specifications: 12.6V/2A;

7.Data output method: USB;

8.Data printing: built-in thermal printer;

9.Positioning method: GPS positioning is standard;

10.Working ambient temperature: -20~50℃

11.Host size: 274*225*113mm;

12.Tripod size: 700*200*130mm;

13.The weight of the whole machine: 6.6kg (including tripods and sensors);

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