Open Channel Ultrasonic Level & Flow Meter

Name: Open Channel Ultrasonic Level & Flow Meter
Brand: WELK Level

Ultrasonic level instrument for channels, weirs and flumes with level-to-flow conversion.

DutyOpen channel flow

StructuresWeirs / flumes

Output4-20 mA / relay / RS-485

DisplayWall mount or local

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Why choose· 01

Built for your duty.

Non-contact channel measurement

The sensor measures head level above a weir or flume without touching wastewater.

Flow conversion

Controller tables can convert head level into instantaneous and totalized flow where the primary structure is known.

Maintenance friendly

Non-contact installation avoids fouling from sewage or suspended solids.

Engineer-checked selection

WELK checks tank height, maximum level, blind-zone allowance, medium, vapor/foam condition, output signal, power and relay points so the quoted configuration matches the application.

Application-matched configuration

Selection notes focus on real tank conditions, measuring range, process connection, output signal and installation limits.

Product details· 02

How it is selected & specified.

Open-channel ultrasonic systems are used in wastewater plants, irrigation channels and industrial discharge monitoring.

WELK needs the channel structure type, throat size, head range, mounting height, power supply and desired display/output before selection.

Open Channel Ultrasonic Level & Flow Meter is presented as a configurable WELK product family. Final model limits, wetted materials, process connection, certificate and output signal are confirmed from the selected datasheet before quotation.

Ultrasonic selection depends on blind zone, tank height, vapor, foam, turbulence, temperature gradient and whether a split display, relay output or corrosion-resistant sensor face is needed.

Specifications· 03

Open Channel Ultrasonic Level & Flow Meter specification range.

Parameter	Value
Measuring principle	Ultrasonic head measurement
Flow structures	Parshall flume, V-notch weir, rectangular weir or custom table
Outputs	4-20 mA, RS-485 and relay by controller
Display	Local or wall-mounted totalizer by configuration
Mounting	Sensor bracket above channel
RFQ data	Flume/weir dimensions, maximum flow, mounting height and power supply
Connection / mounting	M95*2
Output signal	4-20mA/ RS232/ RS485
Power supply	220VAC/ 24VDC any on order
Range / measuring length	10m or more

Applications· 04

Where this product works.

Wastewater inlet channelsIndustrial dischargeIrrigation canalsTreatment plant flowOpen tanksSumpsWater and wastewaterChemical tanks

Application

Water & Wastewater Level

Water utilities and wastewater plants

Wetted materials & output options.

PPPVDFPTFECustom rangeMounting bracketLogo/Marking

Send medium, range, tank geometry, process connection and output signal for model review.

Packaging & shipping· 05b

Export packing as standard.

Packed for export with protected sensor head, probe/antenna/chamber support where needed, model label, wiring note and requested inspection or calibration documents.

Packaging and documents →

Spec siblings· 05c

Spec siblings & common open channel ultrasonic level & flow meter specs.

Measuring principle Flow structures Outputs Display Mounting RFQ data

FAQ· 06

Open Channel Ultrasonic Level & Flow Meter questions.

How do I select Open Channel Ultrasonic Level & Flow Meter?

Start from tank height, maximum level, blind-zone allowance, medium, vapor/foam condition, output signal, power and relay points. WELK then confirms the exact model, material and output before quotation.

What is the difference between Open Channel Ultrasonic Level & Flow Meter and radar?

Open Channel Ultrasonic Level & Flow Meter is selected for its specific duty and limitations. WELK compares it with radar, hydrostatic, float switch when the process data suggests another technology may be safer.

Can Open Channel Ultrasonic Level & Flow Meter be customized?

Yes. Range, process connection, wetted material, output signal, cable length, display, switch points, documents and OEM label can be reviewed by product family.

What are the common limits of Open Channel Ultrasonic Level & Flow Meter?

Heavy vapor, pressure variation, dense foam, strong turbulence or narrow nozzles can weaken the echo; radar may be safer in those conditions.

Are the listed specifications final for every project?

No. Published values are typical selection ranges. WELK confirms final limits, material, output, certificate and documents from the actual process data before quotation.

Need open channel ultrasonic level & flow meter? Send the conditions.

Attach tank drawings, old instrument photos or datasheets if available.