Zhermack furnace DM Serie Manuel De L'utilisateur page 160

WARNING
7.1
The equipment must not be used with any of its parts disassembled: before using the
equipment make sure that all its components are properly in place.
To ensure that work is done in absolute safety always make sure that you
follow the described procedures with caution.
To provide greater clarity the numbers given in the diagrams in the following
paragraphs correspond exactly to the numbering in Chapter 3 in the "Equipment
Description" section.
SAFETY SYSTEMS
7.2
Operator safety is guaranteed by automatic control and safety devices.
The above-cited safety systems control oven start/stop; in particular:
A.
If, during a melting cycle, the operator opens the oven door, the latter will trip a
microswitch (F) positioned centrally beneath the aperture of the door itself.
Pressure on this pin automatically cuts electrical power to the elements, deactivating them.
• the word "Door" appears on the display (11).
• re-closure of the door results in restoration of the electricity supply powering the elements.
• real-time in-chamber temperature re-appears on the display (11).
To ensure long-lasting oven performance it is advisable to avoid using it for
prolonged periods and at maximum temperature.
B. Once the work cycle is complete remember to press START/STOP (20) so as to turn the control
panel off before switching off the oven via the main switch (16).
C.
The oven is equipped with a safety system that provides protection should the set
temperature be exceeded.
If, between 500°C and 600°C, set temperature is exceeded by more than 100°C for at least one minute
the following occurs:
• the flashing legend "tEmP" appears on the display (11).
• an overheating warning buzzer sounds.
• the cycle in progress is automatically cancelled.
The above also happens if, beyond 600°C, the set temperature is exceeded by just 50°C for at least one
minute.
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CHAPTER 7: USING THE EQUIPMENT
MAINTENANCE AND USE MANUAL
EN
FURNACE DM