Elcometer UG20DL Operating Instructions Manual page 7

Underwater thickness gauge
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Fitting a single element transducer: Connect the
plug of a single element transducer to the socket on
the top end cap of the gauge as shown in the
illustration. A special dongle must be fitted to the
other socket as shown. Failure to fit the transducer
plug and dongle as shown will result in the gauge
not identifying the transducer correctly.
The transducer must be used correctly in order for
the
gauge
to
produce
measurements.
The illustration shows the two semicircles of the
wearface and the barrier separating them on a
typical transducer.
One of the semicircles transmits ultrasonic sound
into the material being measured, and the other
semicircle receives the sound echoes back into the
transducer. When the transducer is placed against the material being measured, it is the area
directly beneath the centre of the wearface that is being measured.
3.4 SWITCHING ON/OFF
To switch on, press the control button on the top end cap.
To switch off, press and hold the control button. After
approximately 10 seconds,
gauge will then switch off. Once the gauge has switched off,
release the button.
The gauge will switch off automatically after 4 minutes of
inactivity. It should be noted that if the transducer face is not
wiped clean, there is a chance an echo can continuously be
detected. If that happens, the gauge will remain on until the
battery life is exhausted. In this instance, switch off the gauge manually as described above.
accurate,
reliable
POWER OFF
is displayed and the
Single element transducer
socket
Dongle socket
Top End Cap
Wearface
Control button
Top End Cap
6

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