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ALARM FUNCTIONS
This unit has the alarm functions shown below.
When an alarm has been generated, check the cause on the basis of the type of alarm generated, and
take the necessary action to deal with it without delay.
Contact our sales representative or agent if the alarm is not released by eliminating the following cause.
Before calling for service, take some precautions for the storage items (placing of dry ice wrapped in
newspaper in the chamber or transferring the storage items to another freezer).
Alarms Cause
Indication Buzzer
Remote
alarm
High
temperature
alarm
The chamber temperature is
higher than the setting of
high temperature alarm.
The alarm indicator blinks.
The chamber temperature
blinks.
Intermittent tone
with 15 minutes
delay.
Alarm status with
15 minutes delay.
Low
temperature
alarm
The chamber temperature is
lower than the setting of low
temperature alarm.
The alarm indicator blinks.
The chamber temperature
blinks.
Intermittent tone
with 15 minutes
delay.
Alarm status with
15 minutes delay.
Power failure
alarm
A power failure is occurred.
The power switch is OFF.
The power supply cord is
disconnected.
The alarm indicator blinks. Intermittent tone
Alarm status.
Door alarm
The door is open.
The door check indicator
lights.
Intermittent tone
with 2 minutes
delay (initial setting)
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SAFETY FUNCTIONS
This unit has the safety functions shown below.
Safety
Cause
Indication, Buzzer
Safety operation
Auto-return
There is no key depressing in
setting mode for 90 seconds.
-----
Finishing of setting mode and returning
to temperature display mode.
Key lock
The key lock is ON (L1).
-----
Change of chamber temperature
setting is disable.