47
ALARMS, SAFETY, AND SELF-DIAGNOSIS
This unit has the alarms, safety functions, and self-diagnostic functions of the table 3.
Table 3 Alarms and safety function list
Alarm & safety
Situation
LCD touch panel
Buzzer
Remote
alarm
Message
display field
Other
High Alarm
If the chamber temperature exceeds
the set temp. + the set value of High
Alarm.
(Settable range: +5
o
C
～
+40
o
C)
Warning:
High Temp.
(After alarm delay
time has elapsed.)
・
Alarm display
(During alarm delay)
“Alarm” is displayed
alternately in normal
characters and reverse video
(After alarm delay)
“Warning” is displayed
alternately in normal
characters and reverse video
・
Present temperature
display field
Present temperature blinks.
Intermittent tone
(After alarm
delay time has
elapsed.)
ON
(After
alarm
delay time
has
elapsed.)
Low Alarm
If the chamber temperature falls
below the set temp. - the set value of
Low Alarm.
(Settable range: -5
o
C
～
-40
o
C)
Warning:
Low Temp.
(After alarm delay
time has elapsed.)
Power failure
alarm
The battery switch for power failure
alarm is ON, and under any of the
following conditions.
・
During a power failure
・
Power switch is OFF
・
Power supply cord is disconnected.
Warning:
Power Failure
・
LCD touch panel
Turned OFF. By touching the
LCD touch panel, it lights in
the set brightness for 5
seconds.
Intermittent tone
ON
Door alarm
When door is open.
―
・
Door display
“Open” is displayed
alternately in normal
characters and reverse video
Intermittent tone
(After door delay
time has
elapsed.)
―
Filter alarm
When the excessive dust is
accumulated on the condenser filter.
―
・
Filter alarm indicator
Indicator is lit (orange).
Intermittent tone
―
Auto-return
On screens other than the Top
screen, there is no key operation for
approx. 90 s.
(When the sleep function is ON)
After sleep function is turned ON,
there is no alarm/error and key
operation for approx. 90 s.
―
(Return to the “Top screen”.)
―
―
Battery for power
failure alarm
replacement
When the cumulative operating time
exceeds 3 years.
Warning:
Exchange
a Main Battery.
―
―
―
Battery for backup
cooling kit
replacement
When 3 years passed after installing
backup cooling kit.
Warning:
Exchange
a Backup Battery.
―
―
―
Note:
・
Settable range of the alarm delay time: 0 minute
～
15 minutes (refer to page 29).
・
After turning ON the unit to start operation, only the first time, alarm delay is activated until the chamber
temperature is cooled to the High Alarm set temperature or less (Namely, the alarm display does not
change to “Warning”, buzzer does not sound and remote alarm is not activated).
・
Settable range of the door delay time: 0 minute
～
15 minutes (refer to page 29).
・
The battery for power failure alarm and for backup cooling kit are articles for consumption. It is
recommended that both batteries will be replaced about every 3 years. Contact our sales representative
or agent at the time of replacement of the battery.
