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Contact a Customer Care Representative

We’ll get back to you within 24 hours or the following business day.

Prefer to call?
Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837

Open Channel Flow Meters

Open Channel flow meters measure level, flow rate and total volume of water flowing through weirs, flumes, channels and partially filled pipes. These meters perform best where the sediment does not build up.

Open Channel Flow Meters

Streamlined Open Design. Impressively Accurate Measurements.

Open Channel flow meters are an economical and reliable solution that can retain a historical log of all measurements. 

  • Economical Solution. This single metering solution is simple to set up and can measure level, flow rate and total volume in your application.
  • Reliable Performance. Designed to measure level, flow rate and total volume of water utilizing a non-contact ultrasonic level sensor that delivers impressive accuracy.
  • Monitor Data. Ensures all the measurements are available over Modbus RTU or logged in a historical database for convenience.

How It Works

  • Measuring Principle
  • Key Applications
Measuring Principle
Measuring Principle

Open Channel flow meters measure level, flow rate and total volume of water flowing through weirs, flumes, channels and partially filled pipes. The flow meters use a non-contact level sensor to detect the water level and then calculate the flow rate and volume using the Manning equation and characteristics of the channel.

Key Applications
Key Applications
  • Wastewater Effluent
  • Storm Water
  • Agriculture Irrigation
  • Industrial Discharge

Featured Product Lines

Dynasonics

Dynasonics®

Dynasonics® Ultrasonic meters measure flow rate by propagating ultrasound waves into liquid-filled pipes and measuring the reflections. With either transit time or Doppler technology, these clamp-on ultrasonic meters reside outside the pipe, providing flexibility across a wide range of pipe sizes, no pressure head loss, no contact with internal liquid and no moving parts to maintain.

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Beluga Submersible Area Velocity Flow Meter
Application
Open channel flow measurement
Open channel flow measurement
Measurement
Bi-directional
Bi-directional
Accuracy
±1% zero stability
±1% zero stability
Operating Temperature
-20... 50° C 
-4... 122° F
Raven-Eye 2 Non-Contact Radar Flow Meter
Measurement
Non-contact radar doppler
Non-contact radar doppler
Application
Open Channel Flow Measurement
Open Channel Flow Measurement
Accuracy
±0.5%
±0.5%
Operating Temperature
-20...50° C
-4...122° F
IS-4000 Open Channel Flow Meter
Size Range
25...1500 mm
1...60 in.
Temperature Range
-7...60° C
20...140° F
Flow Range
60...110,840 l/min
13.2...24,381 gpm
Pressure Range
Up to 2 Bar
Up to 30 PSI
IS-6000 Doppler Area Velocity Flow Meter
Size Range
0.04...10 m
0.13...32 ft
Temperature Range
-15...50° C
5...122° F
Pressure Range
Up to 2 Bar
Up to 30 PSI
Power
100…240V AC or 10…36V DC
100…240V AC or 10…36V DC
Interface
Modbus RTU, Modbus TCP Ethernet; WiFi remote programming
Modbus RTU, Modbus TCP Ethernet; WiFi remote programming

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We’ll get back to you within 24 hours or the following business day.

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Customer Care representatives are available by phone Monday–Friday, from 9am–5pm CST.

(800) 616–3837