Ultrasonic Transit Time Open Channel Flow Meter Box Irrigation Canals

Key Features

Ultrasonic Transit Time Flow Measurement: Uses ultrasonic transit time technology to measure water velocity and calculate flow rate in open channel applications.
Integrated Measuring Box Structure: Designed as a standardized flow measurement box to improve measurement consistency in small rectangular canals.
Aluminum Alloy Body: The body adopts lightweight aluminum alloy material, making transportation and installation easier.
All in One Configuration Available: Optional integrated version can include RTU, battery and power supply, reducing the need for additional civil foundation construction.
Suitable for Small Rectangular Channels: Designed for rectangular irrigation canals and drainage channels with a typical width range of 20–160 cm or 40–160 cm, depending on configuration.
Wide Velocity Measurement Range: Supports flow velocity measurement up to ±5 m/s, suitable for irrigation water and drainage flow monitoring.
Radar Water Level Sensor: Equipped with a radar water level sensor for stable non contact level measurement.
Sedimentation Detection Support: Supports optional sedimentation depth detection module with up to ±2.5 mm detection accuracy.
RS485 Modbus Communication: Supports RS485 output with Modbus protocol for integration with RTUs, PLCs, telemetry stations and IoT monitoring platforms.
IP68 Underwater Protection: Underwater components are rated IP68, suitable for long term use in outdoor water environments.
Low Power DC Operation: Supports 7–32 VDC power supply, with low current consumption suitable for solar powered monitoring stations.
Ideal for Smart Irrigation Projects: Designed for agricultural water metering, irrigation canal automation, drainage monitoring and water conservancy modernization.

Product Description

1. Description

JW-UT-D(HJ07) Ultrasonic Transit Time Open Channel Flow Meter Box is designed for small rectangular irrigation canals, agricultural field channels and drainage outlets. It integrates a durable measuring box structure with ultrasonic transit time flow measurement, radar water level sensing, RS485 Modbus communication and optional all in one RTU power supply configuration. It is suitable for accurate flow monitoring in irrigation districts, farm canals and smart water conservancy projects.

2. Product Overview

JW-UT-D(HJ07) Ultrasonic Transit Time Open Channel Flow Meter Box is developed for accurate flow measurement in small open channels where stable hydraulic conditions and compact installation are required. It is especially suitable for irrigation districts, field canals, farm water distribution channels and drainage outlets.

The system uses an ultrasonic transit time platform to measure flow velocity, while a radar level sensor measures water level. Based on the channel structure and measured hydraulic data, the system calculates real time flow. Compared with traditional open channel measurement methods, the integrated measuring box design helps improve installation consistency and reduces the difficulty of field commissioning.

For remote agricultural and water conservancy applications, the all in one version can integrate RTU, battery and solar power supply, making it practical for sites where external infrastructure is limited.

Parameter	Specification
Product Type	Ultrasonic transit time open channel flow meter box
Product Series	D type measuring box
Model Format	HJ-UT-Dxx and HJ-UT-DxxAIO
Applicable Channel Shape	Rectangular
Channel Width Range	20–160 cm or 40–160 cm depending on model
Installation Condition	Channel reconstruction or standard measuring section
Typical Applications	Irrigation field canals, farm canals, drainage outlets
Water Sediment Content	Up to 15 kg/m³
Flow Velocity Range	±5 m/s
Water Level Range	4–160 cm
Sedimentation Detection	Standard or optional depending on model
Sedimentation Accuracy	±2.5 mm
External Facilities	Power supply or recommended sun protection facility
Number of Acoustic Paths	Up to 32 customizable
Transducer Frequency	1 MHz
Water Level Sensor	Radar water level sensor
Built in RTU	Optional or standard depending on model
Built in Power Supply	Optional battery or solar power configuration
Data Output	RS485 Modbus protocol
Working Temperature	-25°C to 80°C
Storage Temperature	-40°C to 80°C
Working Voltage	7–32 VDC
Average Current	Less than 40 mA at 12 VDC
Peak Current	Less than 200 mA
Protection Rating	IP68 for underwater parts
Technology Platform	HJ-UT Transit Time Platform 2.0 with SEA algorithm
Reference Standards	GB/T 11826.2-2012 and GB/T 15966-2017

3. Application Scenarios

Irrigation Field Canal Monitoring: Ideal for small rectangular irrigation canals where real time flow data is required for agricultural water allocation and irrigation scheduling.
Farm Water Distribution: Supports farm level water measurement, helping users monitor water usage and improve irrigation efficiency.
Agricultural Drainage Outlet Monitoring: Can be used at drainage outlets to monitor return water, discharge flow and field drainage performance.
Smart Water Conservancy Projects: Suitable for digital irrigation districts, canal automation and remote flow monitoring systems.
Small Rectangular Channel Measurement: Designed for compact rectangular channels where a standardized measuring section is needed for better measurement stability.
Solar Powered Remote Stations: The all in one version can support battery and solar powered operation, making it suitable for remote canal monitoring sites.

4. Installation and System Integration

The flow meter box is usually installed in a reconstructed rectangular channel section or a standardized measuring section. The system can be configured with a radar water level sensor, ultrasonic transducer channels, control unit, RTU, battery and solar panel. Data can be transmitted to a local control cabinet or remote IoT monitoring platform through RS485 Modbus communication.

This product is especially suitable for small canal sites where traditional installation is difficult or where a compact standardized flow measurement structure is preferred.

FAQ

Q

1. What is an ultrasonic transit time open channel flow meter box?

A

It is a flow measurement system that uses ultrasonic transit time technology to measure water velocity and calculate flow rate in open channels, especially small rectangular irrigation canals.
Q

2. What applications is this flow meter box suitable for?

A

It is suitable for irrigation field canals, farm canals, agricultural water allocation, drainage outlets and smart water conservancy projects.
Q

3. What is the main advantage of the measuring box design?

A

The measuring box creates a more standardized flow section, helping improve installation consistency and measurement stability in small channels.
Q

4. Can JW-IoT integrate this flow meter box with a cloud monitoring platform?

A

Yes. JW-IoT can integrate the flow meter box with RTUs, solar power systems, wireless gateways and cloud dashboards for remote irrigation and water conservancy monitoring.
Q

5. What channel size does this product support?

A

Depending on the selected model, it can support rectangular channels with a typical range of 20–160 cm or 40–160 cm.
Q

6. Does the system support solar power?

A

Yes. The all in one version can support integrated RTU, battery and solar power configuration for remote field applications.
Q

7. What communication protocol does the product use?

A

It supports RS485 communication with Modbus protocol, which is widely used for industrial and IoT system integration.
Q

8. Can JW-IoT provide a complete irrigation canal monitoring station?

A

Yes. JW-IoT can provide the flow meter box, radar level sensor, RTU, solar power supply, control cabinet, wireless communication and cloud monitoring software.
Q

9. What is the flow velocity range?

A

The flow velocity range is ±5 m/s, suitable for most small irrigation canal and drainage outlet applications.
Q

10. Is the underwater part waterproof?

A

Yes. The underwater components are rated IP68, making them suitable for long term submerged operation.
Q

11. Does the product support sedimentation detection?

A

Yes. The product can support sedimentation detection with up to ±2.5 mm accuracy depending on configuration.
Q

12. Why choose JW-IoT for open channel flow metering projects?

A

JW-IoT can support product selection, installation design, communication configuration, platform integration and full project deployment for smart irrigation and water conservancy monitoring.