The need to take into account the reverse current of small gas volumes that occur upon completion of injection is a key feature of flow measurement at automobile gas filling compressor stations. The expanded measurement range and the reverse mode allow HyperFlow-US R to measure small volumes of reverse gas current with great accuracy. That is why this flowmeter is the best solution for CNG filling station metering units. Hyperflow-US has successfully concluded testing under pilot operation conditions and is recommended for use at CNG filling stations.
In accord with its principle of operation, the HyperFlow-US R is classified as a pulse-time flowmeter, whose operation is based on measuring the difference in the transit times of ultrasonic probing pulses emitted with and against the direction of flow of the working medium passing through the measurement pipe (primary transducer).
Emission and reception of probing pulses is performed by a matched pair of piezoelectric transmitter/sensors mounted on the measurement pipe. Alternately switching between the receiving and transmitting modes of the sensor pairs is provided via the electronic unit.