Ultrasonic Doppler Flow Velocity and Direction Meter (with Depth Measurement)

Widely applicable for portable measurement of flow velocity, flow direction, and water temperature in aquatic environments such as estuaries, oceans, coastal observation stations, vessels, and buoys; it can also be used for fixed, unattended, automated online measurements.

Classification:

HXH03-1S Ultrasonic Doppler Flow Velocity and Direction Meter (with Depth Measurement)

Keyword:

海流计

流速流向仪

超声波多普勒流速流向仪

多普勒海流计

声学海流计

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Product details

Instrument Overview

Widely applicable for portable measurement of flow velocity, flow direction, and water temperature in aquatic environments such as estuaries, oceans, coastal observation stations, vessels, and buoys. It can also be used for fixed, installed, unattended, automated online measurements.

Product Features

Integrates flow rate, flow direction, and water temperature parameters into one device; features automatic calibration at low flow rates and is designed for use with lead weights in high-flow conditions; accurately identifies the incoming flow’s azimuth angle from 0 to 360°; incorporates anti-corrosion nanotechnology; measures water level via pressure sensors; and supports multiple communication interfaces.

Technical Parameters

Flow rate frequency	5MHz
Flow rate range	0.02–7.00 m/s
Flow rate accuracy	1.0% ± 1 cm/s
Flow rate resolution	1mm/s
Flow range	0-360° azimuth
Flow accuracy	±3°
Flow resolution	0.1°
Water level range	50m pressure-type
Water level accuracy	±0.5%FS
Water level resolution	1mm
Water temperature range	-5℃~40℃
Water temperature accuracy	±0.5℃
Water temperature resolution	0.01℃
Depth of immersion	50-meter water area (other ranges available upon customization)
Measurement mode	Automatic and manual two types
Measurement interval	Automatic mode: Select a value from 0 to 120 minutes, with a minimum increment or decrement interval of 5 minutes. Manual mode: Measurements can be taken once or multiple times in succession, with any desired interval.
Speed measurement duration	Automatic modes: 60 seconds and 100 seconds Manual mode: 10–120 seconds, with incremental or decremental selection.
Working power	External DC 12V power supply
Output interface	RS232 by default, other customizations available
Protection level	Probe IP68; handheld or wall-mounted host IP65.
Water flow direction identification	The flow velocity probe automatically identifies the direction of water flow and can rotate freely within an azimuth range of 0–360 degrees. When the flow velocity exceeds 0.5 m/s (or 1 m/s), a lead fish device can be suspended from it.
Flow velocity probe	Probe dimensions: 450mm × 180mm × 180mm Probe material: 316 stainless steel; Cable length: 50 m
Volume and weight	Probe dimensions: 450×180×180 mm, weight: 4.5 kg Host dimensions: 235×215×90mm, weight: 1.86kg
Measurement method	Cable-suspended measurement
Measurement parameters	Flow rate, flow direction, water level, water temperature