Flexim FLUXUS F401, Руководство по эксплуатации

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6 Installation
FLUXUS F401 6.2 Transducers
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UMFLUXUS_F401V2-1EN, 2020-06-12
• Avoid measuring points in the vicinity of distorted or defective areas of the pipe or in the
vicinity of welds.
• Avoid measuring points with deposit formation in the pipe.
• Make sure the pipe surface at the selected measuring point is even.
• Select the location of the transmitter within the transducer cable range.
• The ambient temperature at the measuring point has to be within the operating tem
-
perature range of the transmitter and the transducers, see technical specification.
6.2.1.2 Pipe preparation
Rust, paint or deposits on the pipe absorb the sound signal. A good acoustic contact be -
tween the pipe and the transducers is obtained as follows:
• Clean the pipe at the selected measuring point.
– If present, the paint layer has to be smoothed by grinding. The paint does not need to
be removed completely.
– Remove rust or loose paint.
• Use coupling foil or apply a bead of acoustic coupling compound along the center line
of the contact surface of the transducers.
• Observe that there must be no air pockets between the transducer contact surface and
the pipe wall.
Caution!
Contact with grinding dust
This may result in injuries (e.g., breathing difficulties, skin reactions, eye
irritations).
→ Wear the required personal protective equipment. Observe the applica
-
ble rules.
Important!
The pipe has to be sufficiently stable to withstand the pressure exerted by the trans -
ducers and the tension straps.
Notice!
Observe the selection criteria of pipe and measuring point.