Troubleshooting
62
Alarm name
Humidity
chamber off
alarm
No water alarm
Humidity sensor
alarm
Humidity
chamber alarm
Set humidity
alarm
Low humidity
alarm
Oxygen sensor
alarm (during
calibration)
Oxygen sensor
alarm (during
control)
Oxygen con-
centration alarm
(3%)
Oxygen flow
rate alarm
Cat-
egory
Humidity
Condition causing
the alarm
This alarm will occur
if the humidity cham-
ber is not attached.
This alarm will occur
if the humidity cham-
ber cover is left open.
This alarm will occur
if the humidity cham-
ber has become empty
during humidity con-
trol.
This alarm will occur
if condensation forms
on the humidity sen-
sor.
This alarm will occur
if any disruption is de-
tected with the hu-
midifying heater.
This alarm will occur
if the relative humidity
in the incubator devi-
ates from the set hu-
midity by 3% or more
for 15 minutes.
This alarm will occur if
the relative humidity in
the incubator remains
below the set humidity
by 3% or more for at least
one hour.
This alarm will occur
if the oxygen sensors
have not been cali-
brated properly.
This alarm will occur if
the oxygen concentra-
tion detected by one sen-
sor deviates from that de-
tected by the other sen-
sor by 7% or more.
This alarm will occur
if the oxygen concen-
tration in the incubator
deviates from the set
oxygen concentration
by 3% or more.
❋3
This alarm will occur if
the oxygen supply is in-
terrupted or if oxygen
has stopped flowing dur-
ing oxygen control.
The unit during the
alarm condition
The humidifying
heater will be
turned off.
Humidity control
will not start.
The humidifying
heater will be
turned off.
The humidifying
heater will be
turned off.
“– – ” will be dis-
played on the RH
display.
The humidifying
heater will be
turned off.
Humidity control
will be continued.
The humidifying
heater will be
turned off.
Oxygen control
will be continued.
Oxygen control
will be continued.
Oxygen control
will be continued.
Resetting the
alarm
The alarm will be reset
automatically when
the humidity chamber
is attached properly or
the humidity chamber
cover is closed prop-
erly.
The alarm will be
reset automatically
when water is sup-
plied to the humid-
ity chamber.
The alarm will be
reset automatically
when the conden-
sation on the hu-
midity sensor dis-
appears.
Remove the hu-
midifying unit.
The alarm will be
reset automatically
when the deviation
decreases to less
than 3%.
Turn humidifica-
tion off, check the
condition of the
incubator,
❋4
and
then turn humidifi-
cation on again.
Recalibrate the oxy-
gen sensors for a
specified value.
Replace the defec-
tive sensors with
functional ones (cali-
bration required).
Recalibrate the oxygen
sensors for a specified
value.
Replace the defective sen-
sors with functional ones
(calibration required).
The alarm will be
reset automatically
when the deviation
decreases to less
than 3%.
The alarm will be re-
set automatically
when a normal sup-
ply of oxygen is de-
tected.
Alarm
silence
15
min.
15
min.
10
min.
10
min.
10
min.
15
min.
15
min.
15
min.
10
min.
2 min.
2 min.
Message
Check that the
humidity cham-
ber is attached
properly.
Close the humid-
ity chamber
cover.
Fill humidity
chamber with
sterile distilled
water.
Humidity sensor
condensing
Humidifying
heater abnormal.
(E8)
Incubator humid-
ity deviates from
the set humidity.
Humidification
disabled to pre-
vent condensation
from forming.
O2 sensor (L)
failed calibration.
O2 sensor (R)
failed calibration.
Calibrate O2 sen-
sor.
Oxygen concen-
tration in incuba-
tor deviates from
the set value.
No oxygen deliv-
ered.
Priority
Low
Low
Medium
Medium
Medium
Low
Low
Low
Medium
Medium
Medium
Oxygen
❋3 The alarm will not occur for 40 minutes when the setting is changed.
❋4 Check that all the ports and admittance panels are securely closed and that the packings are securely
attached.
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