The ThermaPrep
®
Plus Obturator Oven has been specially devel-
oped for heating ThermaPrep
®
Plus endodontic obturators for use in
root canal therapy. Do not use this oven for any other purpose.
There are none known.
1. Turn the power on by plugging the oven into a 115 VAC
outlet. Both indicator lights around the buttons will light up. To
wake-up the oven from stand-by mode, push and hold either
one of the buttons until the indicator light around the button
is illuminated and two signal “beeps” are heard, and release
the button. A second, lower signal “beep” will sound. On
both sides the smallest obturator size is selected as shown by
indicator lights. The oven is now ready for use. At any time the
oven can be turned off. Push and hold either one of the bottom
buttons until the indicator light around the button turns off.
2. Put both obturator holders in the upper position by pressing the
back of the holder (marked area).
3. DISINFECT the obturator in a 5.25% sodium hypochloride
solution (bleach) for one minute. RINSE the obturator in 70%
alcohol. DRY the obturator for several seconds on a clean work
surface to allow evaporation of excess alcohol.
4. After disinfecting the obturator and setting the rubber stop,
place the ThermaPrep
®
Plus Obturator in one of the obturator
holders, lightly press on top to have it firmly seated. Regardless
of what working length you have determined, the rubber stop
must be under the holder. Make sure the obturator is hanging
straight, not at an angle. The obturator must clear all sides of
the heating chamber.
5. Push the button which corresponds to the selected obturator
holder, to select the size of the ThermaPrep
®
Plus Obturator you
wish to heat. Repeatedly push this button to select the correct size.
6. To start the heating process push the obturator holder down
until you hear it click. It will raise a little but keep in a steady
down position. The indicator light around the button will show
that the heater is on (constantly on). The obturator is now being
heated. Heating time varies – depending on obturator size –
from 20 to 49 seconds, and is regulated automatically.
The heating times for the selected obturator sizes are as follows:
Size Signal Time Tolerance
20
—
25 20 seconds ± 5 seconds
30
—
60 44 seconds ± 7 seconds
70
—
140 49 seconds ± 8 seconds
7. After the first signal “beep,” the obturator is ready for use. Push
the back of the obturator holder (marked area) to let it raise
slowly. The indicator light around the button will go off. Take the
obturator carefully out of the holder by pulling it towards you,
making sure not to scrape the obturator on any part of the holder.
8. You may leave the obturator in the ThermaPrep
®
Plus Obturator
Oven for up to 90 seconds after the first signal “beep.” It will
keep the obturator at the appropriate temperature and ready
for use. The oven will “beep” every 15 seconds to remind you
that the obturator is still in the oven. After 90 seconds, the heat-
ing element will switch off automatically.
9. If you want to heat more obturators, you may use one holder or
both to continue your work efficiently. Each holder is operated
by its own button and indicators. If you hear a signal “beep”
then look at indicator lights around the buttons which indicate
obturator heater is ready (flashing). When both heaters have
finished their cycle and no buttons are pushed, the oven will go
into a power-saving, stand-by mode after 5 minutes.
10. See below table for oven specifications:
Indications
Contraindications
Instructions
for Use
The equipment is designed to be safe for indoor use under the following
environmental conditions:
Maximum Altitude 2000 m / 6562 ft
Storage temperature -20 to +65º C
-4 to +149º F
Storage humidity 20 to 80%,
no condensation
Operating temperature +5 to +40º C
+41 to +104º F
Max. operating humidity 80% at +31° C to 50% at 40° C (lin.)
80% at +87° F to 50% at 122° F (lin.)
Mains voltage uctuations Up to ±10% of the nominal voltage
Transient overvoltages Category II
Rated pollution degree 2
Mass of the equipment .56 kg / 1.23 lbs
Overall size of the equipment (W x D x H) 155 x 178 x 81 mm / 6.1” x 7” x 3.2”
If there is any doubt about the compatibility of decontamination or
cleaning agents please contact the manufacturer or DENTSPLY.
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