Vacuum Steps; Vacuum Extraction - Atmos S 351 NATAL Operating Instructions Manual

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4.7.7 Vacuum steps

4.8 Vacuum extraction

• For vacuum extraction, we recommend that you use a small secretion canister (1.5 l)
so that the required vacuum can be generated with the least possible delay.
• During automatic vacuum build-up, the ATMOS S 351 NATAL generates vacuum evenly
and final vacuum is reached in the preset time.
• The device offers you the possibility of choosing between fully automatic (AUTO) and
semi-automatic (SEMI) vacuum build-up.
1. Press the ON / OFF switch.
» The start screen appears.
» The pump starts automatically in the stored vacuum extraction mode (SEMI or AUTO).
» By pressing button 2 (OFF), you stop vacuum extraction mode and are immediately
redirected to suction mode.
» The ON / OFF switch remains lit as long as the device is on.
2. Apply the extraction cup.
AUTO:
» After the base vacuum of −20 kPa has been reached, automatic vacuum build-up is
started and is indicated by an advisory tone. The remaining time (in seconds) to final
vacuum is shown on the middle right of the display.
» An advisory tone signals that the final vacuum has been reached, and the LED lights
up green.
» The final vacuum is held.
 You can now begin with vacuum extraction.
SEMI:
» An advisory tone sounds when the base vacuum of −20 kPa has been reached. Check
the positioning of the extraction cup.
Operation
1. Press the + (6) or – (5) button to
go to the desired vacuum steps.
2. Select the vacuum steps by press-
ing the MAX button (7).
» The vacuum steps are set. You are
automatically redirected to the
main menu.
 To return directly to the main
menu, press the OFF button (2).
Options
For vacuum unit
in mbar:
• 10
• 20
• 50
For vacuum unit
in kPa:
• 1
• 2
• 5
For vacuum unit
in mmHg:
• 7
• 15
• 37
Operation 25