deltawave - Ultrasonic flowmeter for pipes, open channels and rivers. Our new measuring system deltawave is not only a precise flowmeter for open channels,filles and partially filled pipes but also a temperatur meter and a flow profile analysis tool. Due to the unique patent pending signal analysis deltawave works under extreme conditions, maintenance-free, calibration-free and reliably. The measurement system monitors itself continously and the multi-channel property ensures redundant safety. With only one deltawave, you can realize up to four independent measurement sites, significantly reducing the equipment cost. This feature, combined with the high accuracy up to 0.5% makes deltawave to one of the most powerful measuring systems. Suitable for field acceptance tests of hydraulic turbines: Because of the high accuracy, field acceptance tests of hydraulic turbines, storage pumps and pump-turbines are possible due to ISO60041 and ASME PTC 18. Accuracies up to 1% could be achieved in open channels without calibration. In filled pipes or channels you will get an accuracy of 0.5% of reading. But measuring with deltawave do not means only accuracy. The optimized transducers ensures long-term stable measuring without maintenance. This has been proven successfully by public authorities... more