Incorrect measurements
Measurements can be distorted if the transducers are positioned close to upstream pipe
components and fittings such as pipe bends, T-branches, valves, pumps and similar
obstacles.
To ensure that the U1000 V2 is positioned at a place that has an undistorted flow profile, the
transducers must be mounted sufficiently far from possible sources of distortion to prevent
these from having any effect on the measurement.
Install a straight section of pipe with length 20 times the diameter on the upstream side
of the transducer.
In exceptional cases, a pipe with length 10 times the diameter may be sufficient.
Install a pipe section with length 10 times the diameter on the downstream side of the
transducer.
In exceptional cases, a pipe with length 5 times the diameter may be sufficient.
8.2 Preparation
Before attaching the transducers, make sure that desired position meets the distance
requirements.
See Section 8.1 Positioning the transducers, Page 9.
Clean the pipe to remove any grease residues.
Remove any dirt and flaking paint in order to ensure an even surface.
Maximum accuracy
A smooth and even contact between pipe surface and transducer is an important factor for
obtaining a sufficiently strong ultrasound signal.
Connect the U1000 V2 to power supply
See section 8.7 Electrical connection of the
U1000 V2 for further details.
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