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SETTING OF DELAY OF DOOR ALARM
The door check indicator is light when the door is opened, and the alarm buzzer sounds with some delay
to notice the door opening.
The delay time (between lighting of the door check indicator and activation of the alarm buzzer) can be
changed. Set an appropriate delay time according to the condition of use to prevent the rise of chamber
temperature resulting from inadequate door close.
(The available set range of delay time is between 1 and 15 minutes. Initial setting (factory setting) is 2
minutes.)
Table 4 Procedure for setting of delay of door alarm (Change the delay time to 3 min. from 2
min.)
Description of operation Key operated Indication after operation
1-----
The current chamber temperature is
displayed.
2
Press numerical value shift key for
5 seconds.
F00 is displayed and the first digit
blinks.
3 Press up arrow key 4 times.
The display is changed to F04 from
F00.
4 Press set key. SET
The current setting (002) is displayed
and the first digit blinks.
5
Press numerical value shift key and
scroll the figure to 003.
The display is changed to 003 from
002.
6 Press set key. SET
Delay time is memorized and the
current chamber temperature is
displayed.
Note:
• The set mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation. In this case, any setting before pressing set key (SET) is not memorized.