30
SETTING OF BUZZER SUSPENDED PERIOD
The abnormality is noticed again by sounding of the buzzer after certain suspended period (buzzer
recovery timing) if the alarm status continues even after the buzzer is silenced by depressing the buzzer
stop key (BUZZER). Always set the buzzer suspended period to avoid the wrong recognition of alarm
status.
Setting range of buzzer suspended period:
Between 10 and 60 minutes with 10 minutes interval (display of setting; between 010
and 060) or no recovery (display of setting; 000)
Initial setting (factory setting): 30 minutes (display of setting; 030)
The buzzer does not recover when the setting is 000. The setting should be between 010 and 060 to ensure
the safety of storage items.
Example: Change the setting of buzzer suspended period to 20 minutes from 30 minutes (initial
setting)
•
Following is an example. Operate the key according to the desired buzzer suspended period.
1.
Depress the up arrow key for 5 seconds.
►
The current chamber temperature on the temperature display changes to
function code F00 and the first figure (0) blinks.
2.
Depress the up arrow key 5 times.
►
The display changes to F05 from F00.
The figure changes between 0 and 9 by depressing the up arrow key.
3.
Depress the scroll key once.
►
The second figure starts to blink.
The first figure or second figure blinks alternately by depressing the scroll key.
4.
Depress the up arrow key twice.
►
The display changes to F25 from F05.
The figure changes between 0 and 5 by depressing the up arrow key.
5.
Depress the set key once.
►
The current setting (030) is displayed and the second figure (3) blinks.
The initial setting 030 (buzzer suspended period: 30 minutes) is displayed at the
first setting after installation.
6.
Depress the up arrow key 6 times (as needed for change).
►
The display changes to 020 from 030.
The figure changes between 0 and 6 by depressing the up arrow key.
7.
Depress the set key once.
►
The buzzer suspended period is memorized and the current chamber
temperature is displayed on the temperature display.
The setting mode returns to the temperature display mode automatically when 90 seconds has passed without
any key operation (auto-return function). In this case, the setting is not accepted.
<Important> Never input any function code other than the specified one.
First figure is changeable
Second figure is changeable
Change of second figure
Change of first figure
Second figure is changeable
Change of second figure
Enter of the setting
