Euromag EUROSONIC 2000 HH, User Manual

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EUROMAG | 19
MEASUREMENT
Steps to the installation of the transducers:
Locate an optimal position where the straight pipe
length is sufficient (see the previous section), and
where pipes are in a favourable condition, e.g., newer
pipes with no rust and ease of operation.
Clean any dust and rust on the spot where the
transducers are to be installed. For a better result,
polishing the pipe outer surface with a sander is
strongly recommended.
Apply adequate ultrasonic couplant (grease, gel or
Vaseline)* on to the transducer transmitting surface
as well as to the installation spot on the pipe surface.
Make sure there is no gap between the transducer
transmitting surface and the pipe surface.
Extra care should be taken to avoid any sand or
dust particles left between the pipe surface and the
transducer surface.
Horizontally lined pipes could have gas bubbles
inside the upper part of the pipe. Therefore, it is
recommended to install the transducers horizontally
by the side of the pipe.
There are three ways to mount the transducers on
the pipe: by magnetic force, by clamp-on fixture and
by hand. If the pipe material is metal, the magnetic
force will hold the transducer on the pipe. Otherwise,
you may either simply hold the transducer handle
and press it against the pipe (for S-type only) if you
just need a quick measurement, or, you may use or a
metal strip or the provided clamp fixture to install the
transducers (see the figure 6.)
TRANSDUCER CLAMP DOWN
2.8.1 TRANSDUCER SPACING
The spacing value shown on menu window M25
refers to the distance of inner spacing between the
two transducers (see the following figure). The actual
distance of the two transducers should be as close as
possible to this spacing value.
2.8.2 V METHOD INSTALLATION
V-method installation is the most widely used method
for daily measurement with pipe inner diameters
ranging from 20 millimetres to 300 millimetres. It is
also called reflective method.
f. 6
NOTE
IT IS RECOMMENDED TO USE
THE CONDUCTIVE GEL PRODUCT
FROM LIVINGSTONE, AS THE
ULTRASONIC COUPLANT FOR
SAFETY CONSIDERATIONS. OTHER
COUPLANT, SUCH AS GREASE,
GEL, AND VASELINE, CAN BE USED
AS ALTERNATIVES, BUT AT YOUR
OWN RISK.