Portable open channel flow meter

Product Introduction:

The portable open channel flowmeter is based on the JJG711-1990 calibration regulation, and also refers to the comparison and acceptance of flow monitoring units in HJ353-2019, HJ354-2019, HJ355-2019, and HJ15-2019. It can automatically collect data every 2 minutes, continuously record 6 times of data for liquid level error comparison with online flowmeter data, and also automatically measure flow data within 10 minutes for flow error comparison with online flowmeter data. Finally, the results can be automatically generated into a comparison report for printing or querying.

Execution standards:

JJG 711-1990 “Open Channel Weir Flow Meter”

ZJJ-LR-01-2022 “Trial Verification Regulations for Ultrasonic Open Channel Flowmeters”

HJ 15-2019 “Technical requirements and testing methods for ultrasonic open channel sewage flow meters”

HJ 353-2019 Technical Specification for Installation of Online Monitoring Systems for Water Pollution Sources (CODCr, NH3-N, etc.)

HJ 354-2019 “Technical Specification for Acceptance of Online Monitoring Systems for Water Pollution Sources (CODCr, NH3-N, etc.)”

HJ 355-2019 Technical Specification for Operation of Water Pollution Source Online Monitoring System (CODCr, NH3-N, etc.)

Functional features:

Suitable for four basic weir types: triangular weir, rectangular weir, equal width weir, and Basher groove

High precision signal acquisition module with 24 bit acquisition accuracy, ensuring accurate and effective measurement data

Large screen color LCD touch screen, touch guided operation, simple operation process

The curve displays the trend of flow rate and liquid level changes

Friendly human-computer interaction interface, combined with graphics and text, allows for instrument operation

The instrument is equipped with a micro printer, which can directly print measurement data on site

Can be connected to a computer to output measurement data to the computer, making it convenient for users to perform statistical analysis on the data

Can store 50000 measurement history records

Equipped with a large capacity lithium battery, it can measure continuously for 72 hours on a single charge

The flowmeter is equipped with an intelligent power management system, which extends the battery life

Power on password entry, effectively protecting measurement comparison data and results

Handheld box design, lightweight, convenient for users to carry

Equipped with USB data export and printer data printing functions

Optional GRS or North Head Positioning Function

Technical indicators:

Flow measurement range 0-40m ³/ S

Flow measurement frequency 3 times/second

Liquid level measurement error ≤ 0.5mm

Flow measurement error ≤ ± 1%

Liquid level resolution 0.1mm

The detection distance is standard at 1 meter and optional at 2 meters

Signal output method USB

Working environment humidity ≤ 85%

Working environment temperature -20 ℃~+50 ℃ v

Working power supply AC220V ± 15%

Built in battery 16.8V/2.6Ah

Battery powered continuous working time>72 hours

External dimensions: 270mm x 215mm x 105mm

Whole machine weight 2.4Kg

Standard configuration:

Host, sensor probe, tripod, protective bag, charger, embedded printer