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MAINTENANCE AND USE MANUAL
furnace D
EN
C.
If the thermocouple breaks the following occurs:
• the flashing legend “
tEmP
” appears on the display (
4
).
• an overheating warning buzzer sounds.
• the elements are switched off.
In this condition the thermocouple is inserted improperly or should be replaced.
D.
Once fusion is over remember to press
CYCLE
(
9
) before switching off the oven via the
main switch (
7
) so as to switch the control panel off.
T
EMPERATURE
RANGE
Should even just one of the control and safety devices fail to operate properly
proceed – as far as is possible – as described in section 9.2 and contact you
nearest Authorised Servicing Centre.
O
VEN
SERIES
:
FROM
0°C
TO
300°C
FROM
301°C
TO
600°C
FROM
601°C
TO
900°C
D 30 with heating tubes
30 °C/min
25 °C/min
10 °C/min
D 40 with heating tubes
30 °C/min
25 °C/min
8 °C/min
D 50 with heating tubes
30 °C/min
25 °C/min
8 °C/min
7.2.1
Maximum temperature increase rate
For temperature increase rate settings please observe the following table:
Note that maximum temperature increase rate is 30°C/min. However,
Series D ovens
never
actually attain that increase rate: setting the rate to 30°C/min will, though, ensures that the oven
operates at its maximum power.
7.3
DATA PROGRAMMING
A.
Press the main switch (
7
).
B.
The
word
OFF
appears on the display (
4
).
C.
Press
PROG.
(
11
). The on-key LED will flash and continue to do so throughout the Data
Programming
phase.
The legend “
Pro
” appears on the display (
4
) to indicate access to programming has been
granted.
