Alarms, Safety, And Self-Diagnosis - Panasonic MDF-DU900V Operating Instructions Manual

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
If the chamber temperature exceeds
the set temp. + the set value of High
High Alarm
Alarm.
(Settable range: +5
If the chamber temperature falls
below the set temp. - the set value of
Low Alarm
Low Alarm.
(Settable range: -5
The battery switch for power failure
alarm is ON, and under any of the
Power failure following conditions.
alarm ・During a power failure
・Power switch is OFF
・Power supply cord is disconnected.
Door alarm When door is open.
When the excessive dust is
Filter alarm
accumulated on the condenser filter.
On screens other than the Top
screen, there is no key operation for
approx. 90 s.
Auto-return (When the sleep function is ON)
After sleep function is turned ON,
there is no alarm/error and key
operation for approx. 90 s.
Battery for power
When the cumulative operating time
failure alarm
exceeds 3 years.
replacement
Battery for backup
When 3 years passed after installing
cooling kit
backup cooling kit.
replacement
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.
Situation
Message
display field
Warning:
High Temp.
(After alarm delay
o o
C～+40 C) time has elapsed.)
Warning:
Low Temp.
(After alarm delay
o o
C～-40 C) time has elapsed.)
Warning:
Power Failure
Warning:
Exchange
a Main Battery.
Warning:
Exchange
a Backup Battery.
LCD touch panel
Other
・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.
・LCD touch panel
Turned OFF. By touching the
LCD touch panel, it lights in
the set brightness for 5
seconds.
・Door display
"Open" is displayed
―
alternately in normal
characters and reverse video
・Filter alarm indicator
―
Indicator is lit (orange).
―
(Return to the "Top screen".)
―
―
Remote
Buzzer
alarm
ON
Intermittent tone (After
(After alarm alarm
delay time has delay time
elapsed.) has
elapsed.)
Intermittent tone ON
Intermittent tone
(After door delay
―
time has
elapsed.)
―
Intermittent tone
― ―
― ―
― ―
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