32
ALARMS, SAFETY, AND SELF-DIAGNOSIS
The incubator supports the following alarms, safety functions, and self-diagnostic functions.
Alarms, safety and self-diagnosis for culture operations
Alarm or safety
function
Conditions Indication
Buzzer
Safety
operation
High limit
temperature alarm
If the chamber temperature exceeds
the high limit temperature alarm set
value.
Over heat lamp lights.
E12 or E16 and chamber
temperature are displayed
alternately.
Continuous tone
Heater OFF
Remote alarm
Automatic set
temperature alarm
If the chamber temperature deviates
from the set temperature by ±1
o
C or
more.
All digits on the digital
temperature indicator blink.
Intermittent tone with
15 minutes delay.
Remote alarm with 15
minutes delay
Automatic set CO
2
density alarm
If the chamber CO
2
density deviates
from the set value by ±1 % or more.
All digits on the digital CO
2
density indicator blink.
Intermittent tone with
15 minutes delay.
Remote alarm with 15
minutes delay
Door check
The outer door is open.
Door lamp lights
-----
Fan motor OFF
CO
2
valve is closed
UV lamp OFF*
(60 seconds after)
Heater OFF
Auto-return
When there is no key pressing in
each setting mode for 90 seconds.
Normal display mode.
-----
The setting mode is
canceled.
Key lock
When the key lock is “ON”.
-----
-----
The setting is disabled.
CO
2
gas cylinder
empty
If the CO
2
density does not increase
when the gas valve is opened.
E01 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
Gas line changeover When the gas supply line is switched.
(only when MCO-21GC is installed)
E01 is displayed alternately
with the temperature on the
digital temperature
indicator.
CO
2
gas supply line
indicator of empty blinks.
Intermittent tone
Gas supply line is
altered.
Remote alarm
Chamber
temperature sensor
abnormality
If the temperature sensor is
disconnected.
E05 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Heater OFF
Remote alarm
If the temperature sensor is short
circuited.
E06 is displayed alternately
with the temperature on the
digital temperature
indicator.
Ambient temperature
sensor abnormality
If the ambient temperature sensor is
disconnected.
E09 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
If the ambient temperature sensor is
short circuited.
E10 is displayed alternately
with the temperature on the
digital temperature
indicator.
CO
2
sensor
abnormality
If the output voltage of the CO
2
sensor
is abnormal.
E11 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
CO
2
valve is closed
Remote alarm
Main heater
abnormality
If the high limit temperature alarm
alarm operates, or if the main heater is
open circuit, or the main heater relay
is short circuited.
E12 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
Bottom heater
abnormality
If the bottom heater goes open circuit,
or the bottom heater relay is short
circuited.
E13 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
Door heater
abnormality
If the door heater goes open circuit,
or the door heater relay is short
circuited.
E14 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
Disconnection of
sensor for each
heater
If the relay of main heater, bottom
heater or sensor box heater goes open
circuit.
E16 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
Low humidifying
water*
If the water in the humidifying pan is
about 0.8 L.
Water level alarm lamp
(RH PAN) blinks.
----- -----
UV lamp failure*
When the UV lamp is burned out.
E18 is displayed alternately
with the temperature on the
digital temperature
indicator.
Intermittent tone
Remote alarm
Recommendation of
new UV lamp*
The accumulated ON time is over about
1,000 hours.
UV indicator blinks
when the UV lamp is OFF.
----- -----
*When an optional UV system set MCO-18UVS3 is installed.
• The alarm can be canceled by pressing the alarm buzzer stop key (BUZZER), but the remote alarm cannot be
stopped. And the high limit temperature alarm cannot be silenced with the alarm buzzer stop key (BUZZER).
• E01 is cleared automatically when the gas is connected correctly and the buzzer is silenced with the alarm buzzer
stop key (BUZZER). When MCO-21GC is installed, press the alarm buzzer stop key (BUZZER) to silence the alarm
after changeover of gas supply line.
• If one of E05 to E18 (except for E12, E13, and E14) is displayed, contact our sales representative or agent.
