Accurate open channel flow measurement is essential for effective wastewater management and compliance reporting. Open channel applications—such as stormwater systems, industrial discharge points, and treatment plant influent channels—require sturdy and precise instruments that can perform in challenging field conditions.
TDMA provides industry-trusted equipment designed to monitor flow continuously, deliver accurate readings under variable hydraulic conditions, and integrate with existing data systems. Our team can configure, install, and maintain these systems to ensure reliable operation and compliance.
Teledyne ISCO LaserFlow®
Ideal for: Non-contact flow monitoring in open channels and harsh environments.
The LaserFlow® is a non-contact area velocity flow meter that measures both surface and subsurface velocities using advanced laser Doppler technology. Designed for open channel applications, it provides highly accurate flow data without coming into contact with the water, reducing maintenance and fouling. The LaserFlow is ideal for industrial discharge points, stormwater channels, and sanitary sewer systems. It can also be paired with the Signature® Flow Meter for seamless data collection and analysis.
Signature® Flow Meter
Ideal for: Centralized data logging and compliance reporting.
The Signature® Flow Meter provides comprehensive flow measurement, data logging, and reporting capabilities. It supports multiple flow sensors, including ultrasonic, bubbler, and LaserFlow technologies, and can integrate with pH and temperature modules for complete monitoring solutions. Its advanced logging and telemetry features make it ideal for compliance reporting and long-term monitoring.
DuraTracker® Flow Meter
Ideal for: Long-term field deployment and remote data collection.
The DuraTracker® is a versatile and rugged flow and data logging device, engineered for long-term field deployment. It continuously monitors flow, rainfall, and other critical environmental data points while providing remote access via telemetry. With modular connectivity to ISCO sensors and samplers, it delivers a cost-effective and dependable solution for open channel flow applications.
TIENet® 350 Ex Area Velocity Sensor
Ideal for: Hazardous locations requiring safe and reliable velocity data.
The TIENet® 350 Ex sensor provides accurate velocity and level data in hazardous or explosive environments. Designed for compatibility with the DuraTracker® and Signature® flow meters, it ensures dependable measurements under harsh conditions where safety and reliability are critical.
OpenChannelFlow Flumes
Ideal for: Permanent open channel installations requiring accurate, low-maintenance flow measurement.
OpenChannelFlow flumes provide dependable, no-moving-parts flow measurement for wastewater, stormwater, and industrial discharge systems. By shaping and accelerating flow through a precisely engineered throat, each flume converts water level into an accurate flow rate without the need for continuous recalibration.
Available in a variety of styles—including Parshall, Trapezoidal, H/HS/HL, Cutthroat, and RBC (long-throated) flumes—these units can handle a broad range of flow conditions and debris loads while maintaining excellent hydraulic accuracy. Flumes can be constructed from fiberglass (FRP), aluminum, or stainless steel, depending on the site environment.
TDMA integrates these flumes with ISCO monitoring systems such as the LaserFlow, Signature, and DuraTracker for complete open channel flow solutions. Optional accessories like stilling wells, wing walls, and transducer mounts ensure stable, accurate readings even in variable hydraulic conditions.
From product selection to field setup and calibration, TDMA ensures your open channel flow monitoring systems operate at peak performance. Our technicians provide full installation, maintenance, and verification services to help you stay in compliance and eliminate downtime. With continuous support and detailed recordkeeping, we make it easy to maintain reliable flow data and focus on the rest of your operation.
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