- 17 -
Alarm name
Alarm message
Cause
Drain tank full alarm
(when you attach
an optional drain
tank.)
- Buzzer sounds for 15 seconds.
- All operations are stopped.
- The alarm message [DTK] flashes.
The drain tank (option) is filled up.
(Approx. 10L)
- Buzzer sounds for 15 seconds.
- All operations are stopped.
- The alarm message [HU2] flashes.
- Buzzer sounds for 15 seconds.
- All operations are continued.
- The alarm message [OVR] flashes.
- Buzzer sounds for 15 seconds.
- All operations are continued.
- The alarm message [OVC] flashes.
- Buzzer sounds for 15 seconds.
- All operations are continued.
- The alarm message [OFF] flashes.
- Buzzer sounds for 15 seconds.
- All operations are continued.
- The alarm message [HU1] flashes.
- Buzzer sounds for 15 seconds.
- All operations are continued.
- The alarm message [COL] flashes.
- Buzzer sounds for 15 seconds.
- All operations are continued.
- The alarm message [PRG] flashes.
* Indications disappear, and any key
operation is not accepted.
- All operations are stopped.
Humidity upper limit
alarm
Overheat alarm
Overcool alarm
Power failure alarm
Temperature
control alarm
Cooling alarm
Temperature
gradient alarm
Watch-dog
The measured humidity is left being at 100%
or 0% over 5 minutes.
After the measured temperature reaches to
the set point, it exceeds 5
℃
or higher than
the set point.
After the measured temperature reaches to
the set point, it exceeds 5
℃
or lower than
the set point.
The unit is shut down while operating.
The measured humidity deviates form the
set value
±
20%, and it is left for more than
60 minutes.
Although the refrigeration unit works and the
heater stops, the temperature cannot be
lowered 1
℃
under the below conditions.
-5
℃
or higher measured temp. : during 30min.
Lower than -5
℃
measured temp : during 60min.
The measured humidity deviates form the
target value
±
5% during the gradient control,
and it is left for more than 10 minutes.
It detects crash of CPU due to an excess
noise and stops the microprocessor.
How to release alarm.
1) In case of
Overheat protection alarm for chamber [TH]
Overload alarm for refrigeration unit [OLR]
High pressure alarm for refrigeration unit [HP]
Turn off the power switch of the unit once,
solve the cause of alarm, and turn on the
power switch again.
2) In case of
Door alarm [DOOR]
When the door is closed, the alarm is
released automatically.
* [Clear] key cannot release the alarm.
3) In case of other alarms
When you press [Clear] key, the alarm is
released.
If the cause of the alarm is not solved, the
alarm occurs again.
4) In case of watch-dog
Turn off the power switch of the unit once,
and turn on the power switch again.