
The portable open channel flow meter is a high-precision measuring instrument specifically designed for hydrological monitoring, river flow measurement, agricultural irrigation, and municipal water supply and drainage industries. It supports measurement across 10 types of weirs and flumes, utilizing ultrasonic technology and a specialized ultra-low power consumption design combined with fully digital signal processing to ensure measurement stability and reliability.
This device offers a wide measurement range and high accuracy, supporting real-time data display, recording, export, and printing functions. Its user-friendly operation and high precision make it ideal for applications requiring frequent relocation during measurements.
Additionally, it complies with the JJG711-1990 verification regulations and references HJ353-2019, HJ354-2019, HJ355-2019, and HJ15-2019 to ensure its applicability and accuracy in water conservancy projects, environmental monitoring, agricultural irrigation, and other fields.
Applications include:
① Water conservancy departments: Monitoring flow velocity and volume in rivers, canals, and reservoirs.
② Environmental protection departments, water quality monitoring stations, and related environmental enterprises: Utilizing such equipment to monitor flow velocity and discharge in urban drainage systems and industrial wastewater discharges.
③ Third-party testing institutions: Performing field calibration and comparison of online open-channel flowmeter instruments.
④ Emergency management departments: Rapidly assessing water flow conditions to provide data support for flood control and disaster mitigation.
Supports 10 types of weir and flume measurements (triangular weir, rectangular weir, constant-width weir, Parshall flume, throatless weir, rectangular flat-top weir, rounded-top weir, triangular profile weir, flat V-weir, trapezoidal thin-wall weir).
High-precision signal acquisition module with filtering algorithms ensures accurate measurement data.
Real-time display and recording of ambient atmospheric pressure and temperature values, integrated into the data system via algorithms for enhanced data reliability.
7-inch color LCD display with touch-guided operation for simplified workflow.
High-performance data processor for rapid data processing.
Continuous measurement capability with customizable measurement duration.
Curve display allows intuitive visualization of liquid level and flow rate trends during measurement.
Integrated micro thermal printer for on-site printing of measurement reports.
Large-capacity data storage holding up to 10,000 historical measurements.
Direct data export to USB drives for convenient statistical analysis.
Built-in high-capacity lithium battery enables continuous measurement for 48 hours on a single charge.
WIFI connectivity enables remote OTA firmware upgrades.
Password-protected startup safeguards measurement comparison data and results.
Luggage-style design with lightweight construction for easy portability, IP65 waterproof rating.
| Model | MQ50 | MQ60 |
| Weir and Flume Comparison | Standard 4 Types: Triangular Weir, Rectangular Weir, Equal-Width Weir, Parshall Flume | 10 types: triangular weir, rectangular weir, constant-width weir, Parshall flume, throatless weir, rectangular wide-crest weir, rounded-crest wide-crest weir, triangular-profile weir, flat V-weir, trapezoidal thin-wall weir |
| Continuous measurement | No | Yes |
| Custom measurement duration | None | Available |
| Atmospheric Pressure | None | Range: 30~110KPa |
| Resolution: 0.1 kPa | ||
| Accuracy: ±0.12 kPa | ||
| Ambient Temperature | None | Range: -40~85℃ |
| Resolution: 0.1°C | ||
| Accuracy: ±1°C | ||
| Positioning Method | GPS Positioning | Triple Positioning: GPS, BeiDou, QZSS |
| Screen Size | 7 inches | |
| Measurement Curve | Real-time display of liquid level and flow rate trends | |
| Flow Measurement Range | 0~40m³/s | |
| Level Measurement Range | 10cm~1m | |
| Flow Measurement Error | ≤±1% | |
| Level Measurement Error | ±0.5mm | |
| Data Storage | 10,000 times | |
| Wi-Fi Connectivity | Yes | |
| Remote OTA Upgrade | Yes | |
| Password Protection | Yes | |
| Comparison Report | Supports comparison data storage and manual printing | |
| Battery Specifications | 12.6V/4.8Ah, Standby Time >48 hours | |
| Charger Specifications | 12.6V/2A | |
| Data Output Method | USB | |
| Data Printing | Built-in thermal printer | |
| Operating Temperature | -20~50°C | |
| Main Unit Dimensions | 274*225*113mm | |
| Tripod Dimensions | 700*200*130mm | |
| Total Weight | 6.6kg (including tripod and sensors) | |
| Packaging Dimensions and Weight | (Parent-Child Components) Bracket Package: 830*170*250mm, 4.5kg; Machine: 320*170*275mm, 3kg | |