8 • Maintenance and servicing
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10.16
Operation suction
Test setup
• As for the previous test.
Test procedure
Operation suction without
run-on time
1. Set IES 2 to:
–Operation suction: 80%
– Basic suction: 2%
– Run-on time: 0 sec
2. Keep footswitch pedal pressed. The suction must remain activated as
long as the pedal is kept pressed.
3. Release the footswitch pedal. The suction must be deactivated imme-
diately.
Operation suction with
run-on time
1. Set IES 2 to:
–Operation suction: 80%
– Basic suction: 2%
– Run-on time: 5 sec
2. Keep footswitch pedal pressed. The suction must remain activated as
long as the pedal is kept pressed.
3. Release the footswitch pedal. The suction must be deactivated after
approx. 5 sec.
Blocked suction detection
Test setup
• As for the previous test.
Test procedure
1. Ascertain and note the sensitivity of blocked suction detection in the
Setting mode (P. 3), see page 26. Set the blocked suction detection to
7 for this test.
2. Exit the Setting mode. Switch unit off and back on for this purpose.
3. Keep footswitch pedal pressed. The suction must be activated.
4. Keep the main filter input covered up (to simulate blocked suction).
Blocked suction detection works if:
–the System blocked / Occlusion display lights red
– a warning signal sounds (1 sec on, 1 sec off)
– the suction is switched off immediately (without run-over time).
5. The sensitivity of blocked suction detection is reset to the old value.
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