Portable Doppler Partically Filled Flow Meter

Portable Ultrasonic Doppler Partically filled Flow Meter

The portable ultrasonic Doppler flowmeter(RBDOF-P) is a convenient metering device developed based on on-site application experience. It follows the principle of simplicity and convenience in many aspects such as assembly, testing, and data collation, aiming to provide users with a good experience. According to various channel types in nature, the product integrates and designs corresponding cross-sectional area calculation formulas. The instantaneous flow can be calculated by the velocity-area method, and the cumulative flow is calculated according to the cumulative time selected by the user.

Description

Principle
Features
Specification
Model Selection
Applicants
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Principle

Features

RBDOF-P Portable Doppler Partically Filled Flow Meter Features:

Powered by 2 rechargeable 3.6V 18650 lithium batteries
Low-power design with 8-hour continuous operation, compatible with power banks
Local cache supports 1 million data entries with historical data export function
Standard USB to Type-C data cable included
Detachable and extendable bracket
3.5-inch backlit LCD screen
Built-in button battery for automatic RTC clock calibration
Host supports simultaneous mounting of 2 ultrasonic Doppler flow velocity meters for comparative testing
Battery level display on main interface showing power and sensor voltage
Multiple channel types available: circular, elliptical, rectangular, trapezoidal, and irregular channels

Specification

RBDOF-P Portable Doppler Partically Filled Flow Meter Specification:

Power Supply

3.6V lithium battery, input range: 3～5V DC
External sensor voltage adjustment range: 10～24V DC
Battery capacity: 3.6V/5200mAh
System power consumption: 600mAh (continuous operation for 8 hours at 25℃)

Measurement Performance

Flow velocity range: 0.03m/s～5m/s
Water depth range (pressure): 0.02～10m
Flow velocity accuracy: ±(V×1%+0.01)m/s (calibrated by hydrological verification center); ±1%～±3% (affected by field working environment)
Flow velocity resolution: 1mm/s
Water depth accuracy: ±3cm
Water depth resolution: 3mm
Temperature resolution: 0.01℃
Instantaneous flow range: 1L/s～720,000,000m³/h
Instantaneous flow resolution: 0.001m³/s
Cumulative flow range: 0.1L～345,600,000,000m³
Cumulative flow resolution: 0.001L
Data types: water level, flow velocity, temperature, instantaneous flow, cumulative flow
Channel types: circular, rectangular, trapezoidal, irregular

Physical Properties

Flow velocity meter material: POM+(ABS+PC)
Handheld unit material: ABS
Bracket material: 304 stainless steel, standard rod length 2.5m (0.5m×5 segments)
Cable material: PU
Cable length: 4-core (single core 0.21mm²) shielded cable with air duct, default 10m factory length, diameter 8mm
Weight: 8.52kg±0.1kg
Handheld unit protection class: IP65
Flow velocity meter protection class: IP68

Working Environment

Operating temperature: -5～60℃ (non-freezing)
Storage temperature: -25～80℃

Model Selection

RBDOF-P Portable Doppler Partically Filled Flow Meter Model Selction:

RBDOF Doppler Open Channel Flow Meter Model Selection
RBDOF-	Doppler Open Channel Flow Meter
F	Fixed type
P	Portable Type
	Level Measure Range
	3	3m
	10	10m
	X	xm
		Sensor Material
		A	ABS
		F	PTFE
		P	POM
		S	SS316L
		X	Other Material
			Power
			2	12VDC
			4	24VDC
				Output
				MA	4-20mA
				C2	RS232
				C4	RS485
				MC	4-20mA+RS232
					Cable Length
					1	1m
					x	Xm(2-50m)

Applicants

RBDOF-P Portable Doppler Partically Filled Flow Meter Applications:

It is mainly applied to natural rivers, irrigation open channels, municipal pipeline networks, hydrological basins and other environments.

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Portable Doppler Partically Filled Flow Meter

Description

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