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OPERATING INSTRUCTIONS
Temperature setting
Table 1 shows the basic operation method. Perform key operation
in
the sequence indicated
in
the table.
The example
in
the table
is
based
on
the assumption that the freezer temperature
is
-25°C.
Note: The unit
is
set at the factory at
-20
°C.
Table 1 Basic operation procedure (Example of setting: Freezer @ -25°C)
Operation Key operated Display after the key operation
1
Connect
to
the
power
source
. ----- The current freezer temperature
is
displayed. When freezer
temperatur~]
FH
f'
is
higher than
30°C,
HI
is
displayed and
LO
is
displayed when lower than
-36°C.
2 Press SET
key.
SET The first digit of the temperature
display flashes.
3
4
5
Set to 5 by using the up arrow key.
Set to 5 by using the digit shift key
and
numerical value shift key.
Press
SET
key.
Note:
SET
Pressing the up arrow key shifts
up
the flashing digit by one. Repeat until
flashing digit turns to
5.
Pressing the digit shift key leads the
flashes of the next digit.
Pressing the up arrow key shifts
up the flashing digit by one. Repeat
until flashing digit turns to
2.
The value (-25)
is
stored
in
memory
and the current freezer temperature
is
displayed.
iff
1-1215]
~,
~
[H[
I
[ ! I
If no key has been pressed for about
90
seconds
in
the temperature set mode, the display mode returns
automatically to the temperature display mode.
In
this case, the chamber temperature setting
is
not changed.
The freezer temperature can
be
set
in
the range between -15 and -25°C. Remember that the guaranteed
temperature with
no
load at
an
ambient temperature of
21°C
is
-15 and
-25°C.
13
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