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GA--A 181
7.5.2 Visual check
Z Check the device setup, connection and connection cable for correct-
ness in accordance with section 3 of this manual.
7.5.3 Functional checks
CAUTION!
Danger of transducer or sonotrode overheating.
Thetransducer must onlybe activated if irrigation fluid ispumped off
through the sonotrode at the same time.
.
IMPORTANT!
Before you carry out a function check, make sure that the devices and
accessories are in perfect technical state and have been set up correctly.
To ensure this, carry out a visual check.
Function test of Ultrasound Generator and transducer:
Z Connect the transducer to the Ultrasound Generator and the suction
tube to the suction connector of the transducer.
Z Place the transducer together with the sonotrode in a suitable con-
tainer filled with sterile liquid or irrigation fluid.
Z Switch on the Ultrasound Generator and the suction function, and ad-
just the suction rate.
Z Select the highest power stage on the Ultrasound Generator, hold the
transducer and briefly actuate the footswitch.
'The sonotrode should start vibrating and generate noise. For this
purpose lift the transducer with the sonotrode out of the liquid to the
extent that the tip remains immersed far enough to ensure reliable
suction. Oscillation amplitudes must be visible along the sonotrode
tube.
If the noise is only low or if the sonotrode clanks audibly, check the
screw connection of the sonotrode. When assembling the sonotrode
and the transducer, make sure that the flange surfaces are clean
and the screw connection is tight. Then repeat the test.
If neither oscillations nor a noise is generated or the “transducer mal-
function” (6) warning lamp lights up, repeat the test with a spare
transducer .
Test generator fault monitoring:
Z With the footswitch actuated, switch from the highest to the next lower
power stage.
' During switch--over , the “ generator malfunction” alarm lamp (7)
should light up briefly.
Z Repeat switch--over test until the lowest stage is reached.
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