Durag D-FL 220T ultrasonic flow velocity monitor for tunnels
The D-FL 220T continuously measures flow velocity and flow direction in tunnels. Its ultrasonic sensors provide reliable measurement across the tunnel profile for tunnel ventilation control systems. Two identical sensors alternately transmit and receive ultrasonic pulses. The system evaluates the transition times dependent on direction and calculates flow speed. Key Benefits Extremely low maintenance Reliable […]
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