Situation Indication Buzzer Safety operation
Automatic set
temperature
Alarm
If the internal temperature
deviates from the set temp.
by +/-2.5
o
C or more.
Alarm lamp lights.
All digits on the temp.
indicator flash.
Intermittent tone -----
Key lock
switch
When the key lock switch is
turned ON.
----- -----
Key input is
disabled.
Temperature
sensor
abnormality
If the temperature sensor goes
open circuit.
Alarm lamp lights.
E01 is displayed on
the temp. indicator.
Intermittent tone Heater OFF
Triac
abnormality
If the triac goes open circuit.
Alarm lamp lights.
E02 is displayed on
the temp. indicator.
Intermittent tone Heater OFF
If the triac goes short circuit.
Alarm lamp lights.
E03 is displayed on
the temp. indicator.
Intermittent tone Heater OFF
Relay
abnormality
If the relay goes short circuit.
Alarm lamp lights.
E04 is displayed on
the temp. indicator.
Intermittent tone Heater OFF
If the relay goes open circuit or
heater goes short circuit.
Alarm lamp lights.
E05 is displayed on
the temp. indicator.
Intermittent tone Heater OFF
Independent
over-heat
protection
(when unit is not running)
The security circuit is activated
by independent temp. sensor if
the chamber is abnormal over-
heating.
Without display
change.
Continuous tone
Heater OFF
forcedly by
external circuit.
(When unit is running)
The security circuit is activated
by independent temp. sensor if
the chamber is abnormal over-
heating.
Alarm lamp lights.
E05 is displayed on
the temp. indicator.
Continuous tone
(When the temp.
is decreased,
intermittent tone)
Heater OFF
forcedly by
external circuit.
* The buzzer tone resulting from the independent over-heat protection cannot be stopped with the alarm
buzzer stop key (BZ). Turn off the main switch.
Operation after power failure
The set value is memorized by nonvolatile memory. Accordingly, the incubator resumes the operation
with setting before power failure.
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