38
ALARMS, SAFETY AND SELF-DIAGNOSIS
Alarms and safety functions
Alarm & Safety
Situation
Indication
Buzzer
Safety operation
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 closes.
Remote alarm
O
2
sensor
abnormality
If the output voltage of the O
2
sensor
is abnormal.
E19 is displayed alternately
with the temperature on the
digital temperature indicator.
Intermittent tone
N
2
/O
2
valve closes.
Remote alarm
Main heater
abnormality
If the high limit alarm temperature
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
S.S.R 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 MCO-19UVS is installed]
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
[When MCO-19UVS is installed]
The accumulated ON time is over
about 1,000 hours.
UV indicator blinks
when UV lamp is OFF.
----- -----
• The alarm can be canceled by pressing the alarm buzzer stop key (BUZZER), but the remote alarm
cannot be silenced. And the high limit temperature alarm cannot be silenced with the alarm buzzer stop
key (BUZZER).
• E01 or E02 is cleared automatically when the gas is connected correctly and the buzzer is silenced with
the alarm buzzer stop key (BUZZER). Press the alarm buzzer stop key (BUZZER) to silence the alarm
after changeover of gas supply line.
• If one of E05 to E18 is displayed, consult with our sales representative or agent.
Summary of Contents for MCO-5M Series
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