Portable nullah flow meter

Product Introduction:

Portable nullah flow meter is designed for hydrological monitoring, river flow monitoring, agricultural irrigation and municipal water supply and drainage and other industries designed for a high-precision measurement instrument, which uses ultrasonic technology and special micro-power consumption design scheme, combined with all-digital signal processing technology, to ensure the stability and reliability of the measurement. The device has a wide measuring range and high measuring accuracy, supports real-time data display, data recording, export and printing functions, easy to operate and high accuracy, very suitable for occasions that require frequent movement for measurement. At the same time, it is based on JJG711-1990 calibration regulations, and refers to HJ353-2019, HJ354-2019, HJ355-2019, and HJ15-2019 in the flow monitoring unit of the relevant requirements for the comparative acceptance, to ensure its applicability and accuracy in the field of water conservancy engineering, environmental monitoring, agricultural irrigation and other fields.

Application:

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

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

Third-party testing organizations: on-site calibration and comparison of online nullah flow meter instrumentation.

Emergency management departments: rapid assessment of water flow conditions, flood prevention and disaster mitigation to provide data support.

Standards:

JJG711-1990 “open channel weir flow meter”;.

HJ15-2019 “ultrasonic nullah sewage flowmeter technical requirements and testing methods”.

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

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

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

Product features:

1、Applicable to four weir types: triangular weir, rectangular weir, equal width weir and Bashir tank;.

2、High precision signal acquisition module, with filtering algorithm, accurate measurement data.

3、7 inches color LCD display, touch-guided operation, easy operation process.

4、Adopting high-performance data processor, fast data processing.

5、Curve display flow rate trend and liquid level trend.

6、With curve display, you can visualize the liquid level and flow rate trend when measuring.

7, the instrument comes with a miniature thermal printer, you can print the measurement report on the spot.

8, large-capacity data storage, the maximum storage of 10000 times the history of the measurement data.

9, the data can be directly exported to the U disk, easy for users to statistically analyze the data.

10, built-in high-capacity lithium battery, a charge can be 48 hours of continuous measurement.

11, suitcase design, light weight, easy to carry, waterproof grade IP65.

12, standard GPS positioning function, can also be customized Beidou positioning or other positioning functions.

13, with WIFI connection function, support remote OTA upgrade program;.

14, boot password access, effective protection of measurement comparison data and results.

Technical parameters:

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

2. Level measurement range: 10cm~1m.

3. Flow measurement error: ≤±1%.

4. Liquid level measurement error: ±0.5mm.

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

6. External charger specification: 12.6V/2A;; and

7. Data Output Mode: USB.

8. Data Printing: Built-in thermal printer.

9. Positioning mode: standard GPS positioning, can be customized Beidou positioning or other positioning functions.

10. Working environment temperature: -20~50℃; 11.

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

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

13. Machine weight: 6.6kg (including tripod, sensor).

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