Ponton Industries

Open-Channel flow measurement

The ultrasonic way to monitor open channels

Measuring liquid flow in channels with free surfaces is a unique challenge requiring specialized technology – and Siemens delivers. SITRANS L non-contacting ultrasonic level products provide continuous monitoring of wet wells, flumes and weirs by way of level-to-flow calculations. Our highly accurate devices for open-channel flow range from the SITRANS Probe LU240 compact transmitter to the MultiRanger, HydroRanger and SITRANS LUT400 controller series. For added confidence, the HydroRanger and LUT400 series are MCERTS-certified.

Level Measurement Guide

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SITRANS LUT440

For open flow applications that require the highest accuracy available in addition to data logging and advanced pump, alarm and flow control features.


SITRANS LUT430

For open flow applications that require data logging and advanced pump, alarm and flow control features.


HydroRanger 200 HMI

For open flow applications that require level montioring with advance display options and a wide range of communications protocols including ethernet.


MultiRanger 200 HMI

For versatile short to medium range level monitoring of flow. With six relays, and multiple communications options, one controller can monitor multiple points in open flow applications.


SITRANS Probe LU240

All-in-one transmitter when you want level control in a compact device with HART 7 communications.