Description Of Operating Modes; Thermal Process For Reducing Bacterial Count; Irrigation Mode; Stimulation Mode - Atmos Variotherm plus Operating Instructions Manual

4.0 Operation

4.5 Description of operating modes

4.5.1 Thermal process for reducing bacterial
count
Purpose:
Reduction of bacteria count in the warm water circuit to
prevent or clear a contaminated system.
Activation:
Occurs each time the unit is switched on.
• Condition for starting the correct thermal process for
reducing bacterial count:
- The irrigation handle must be inserted in the holder
on the side (jet pointing to reverse side of the unit).
ª If not, a warning signal is given (warning also sounds
when the handle is removed during the thermal
cleaning procedure).
ª Additionally, the error code "F0" is shown (disappears
when handle is returned).
) In the thermal process for reducing bacterial count hot
water is being ducted through the irrigation handle.
Please do not take the handle from its holder or spray
water!
) Metal parts of the irrigation handle and of the double-
barrelled hose will be hot! Please do not touch metal
parts during the thermal cleaning procedure!
• During the thermal process for reducing bacterial count,
the temperature display shows a 'd' on the first segment
and the remaining time (in minutes) on the second
segment.
• After cooling down to 37°C the unit will automatically
switch into irrigation mode.

4.5.2 Irrigation mode

Purpose:
Rinsing of the auditory canal.
Properties:
• Temperature: 37°C, permanently set.
• Position of the adjusting lever: High (see fig. 6, page 13).
Activation:
• Automatically after completion of thermal cleaning
procedure and taking out the handle or by key (, fig. 1).
• When the irrigation mode is not used (handle remains
in holder) the Variotherm plus changes into the energy
saving mode after 5 min.
• Reactivation of the irrigation mode by taking the handle
out of the holder or activating a key on the temperature
control unit.
• If the 37°C push button is repeatedly pressed, the heating
is switched off.
ª Water with feed temperature is available.
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4.5.3 Stimulation mode

Purpose:
Stimulation of the vestibular organ.
Properties:
• Temperature: corresponds to the preselected cold or
warm stimulation level
• Position of the adjusting lever: Low (see fig. 6, page 13).
• Duration: as pre-set by the timer.
Activation:
• Initially select the type of stimulation by actuating either
warm-stimulation or cold-stimulation key (, , fig. 1)
(see section 4.1 for pre-setting of temperature)
ª Water with pre-set temperature value flows to handle.
• Wait for 20 seconds.
• Operate the "timer-start-key".
• Preparation for stimulation:
- Operate unit 15 seconds in holding position, so that
the jet can be positioned correctly in the auditory
canal.
) During this period, the water is directed, via the handle,
into the drain in order to guarantee an optimum
temperature stability; with an optical indication by the
flashing figure in temperature display.
Do not start stimulation by operating the release lever at
the handle until you hear the audible signal!
• Carrying out the thermo-stimulation by actuating release
lever at handle (, fig. 4).
• At the end of the stimulation period a control signal for a
recording unit is issued at the nystagmograph output.
• After completion of the stimulation the unit remains in a
holding position for 15 seconds so that the handle may
be removed from the auditory canal.
ª During this time, water flows into the drain; again an
optical indication is made by flashing temperature
value.
• Repeated actuation of the "timer-start-key" leads to
stopping timer operation.
• Second actuation of the currently active key effects
deactivation of the pertaining stage.
ª Heating is switched off completely.
ª Stimulation with cold water (feed temperature).

4.5.4 Energy saving mode

Purpose:
Reduction of energy consumption.
Activation:
• Actuation of key "heating on/off" (, fig. 1).
ª Heating is switched off.
• After fi ve minutes of non-use of the unit.