Operating Instructions DFO/DFI Series Mechanical Convection Ovens/Incubator
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Regular check of the air tightness of the door seal and the ventilator is necessary for
efficient and safe operation of the oven. Intervals of 3 months for normal use, or the
first time powering up after repairing or standstill for long period, are recommended.
Refer to 4.1 for detailed procedures.
3.4 Absolute temperature calibration (ATC)
1)
If the temperature display is away from the actual temperature as measured by standard
thermometer, the display temperature needs to be calibrated by this function.
2)
Set the oven at temperature of 100.0
°
C(DFO) or 50
°
C(DFI) for calibration. Wait until temperature
is stabilized. Read the temperature of the standard thermometer.
3)
Press
for more than 2 seconds until screen displays
Ht
. Scroll the menu by
until
screen displays
Atc
. Press
to enter. Original value will show up, then press
to
modify the value as available from the standard thermometer. Press
to confirm and exit the
set up screen or exit automatically in 4 seconds.
The temperature in the oven must be kept in constant and the standard thermometer
be kept in the oven center for at least 30 minutes, before performing calibration.
During heating up or cooling down, the temperature distribution is not even and the
readings both from thermometer and the controller are not typical thus not
appropriate for calibration.
3.5
Auto
setting for
Aon
and
AoFF
Press
for more than 2 seconds until screen displays
Ht
. Scroll the menu by
until
Auto
is
displayed, then press
to enter. Use
to select between
Aon
and
AoFF
. For
automatic power-on function, use
Aon
, and press
to confirm and exit the setting. In this
case, the equipment will automatically resumes to the status before power being interrupted. If
the mode is set to
AoFF
, press the
for more than 2 seconds to start the equipment in any
situation.
Auto
mode setting is designed to protect the equipment from power failure and
make it efficient, uninterrupted operation. You are recommended to set
Aon
mode if
operating for more than 24 hours is desired.
3.6 Timer for automatic starting (optional)
1)
This function is valid in standstill mode.
2)
Press
for more than 2 seconds to display
Ht
, scroll the menu by
until
AS
is displayed,
then press
to enter. Press
to get the desired value, press
to confirm and
exit the set up screen or exit automatically in 4 seconds.
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