18
SETTING OF DELAY OF DOOR ALARM
The door check indicator is lit 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 5 Procedure for setting of delay of door alarm
(Change the delay time to 3 minutes from 2
minutes)
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
flashed.
3
Press numerical value shift 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 flashed.
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 door alarm delay time set mode returns to the temperature display mode automatically when 90
seconds has passed without any key operation.
