4 Safety Measures 8
• Before the top and bottom are opened, the furnace must be disconnected from
the power source (turn off the furnace and pull the plug). The main switch is on
the back (see p. 6, Figure 2.)
• If a lightening stroke hazard exists, separate the furnace from the power source
(turn it off and pull the plug).
• If the furnace cannot be operated safely, pull the power plug, and make sure
that the furnace cannot be unintentionally switched on, especially when the
following error message appears: TEMPERATURE LIMIT EXCEEDED.
SWITCH FURNACE OFF IMMEDIATELY!
• If the ground conductor is interrupted either inside or outside the device, or the
ground conductor is released, the furnace is hazardous to operate. The
connection may never be intentionally severed.
• Further reasons for assuming that the equipment cannot be used safely:
Visible damage to the housing or power cable, malfunctioning, frequent need
to exchange fuses, long storage in a bad environment (moisture). Please also
follow the setup instructions in Section 4.2.
• Note that the furnace requires several hours to cool after it is turned off.
• Do not run the connection lines past hot locations of the furnace, and
especially avoid direct contact.
4.2 SETUP
• Set up the furnace in a suitable place on a dry, flat, solid surface.
• Make sure that flammable materials or objects that can be damaged by heat
are sufficiently distance from the furnace.
• Never place such materials or objects on the pot cover and the cover plate.
• The vents in the top section must not be obstructed in order to ensure
circulation of cooling air.
• The vacuum pump should be set up in dust-free, well-ventilated area. Please
also note that the length of the vacuum hose is approx. 1.5 m from the pump to
the furnace. Never block the vents of the pump. Do not store easily
combustible or flammable materials close to the pump.
4.3 OPERATION
• Never operate the ceramic furnace without supervision.
• When positioning the firing object and firing tray, ensure that no parts jut out
over the edge of the firing table. There is a danger of damaging the firing object
and thermal insulation material when closing the furnace.
DEKEMA Dental-Keramiköfen GmbH, AUSTROMAT
®
D4, Version 3, 2006
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