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ALARMS, SAFETY, AND SELF-DIAGNOSIS The Incubator supports the following alarms, safety functions, and self-diagnostic functions.
Table 1: Alarms and Safety Functions for Culture Operations
Alarm o
r
safety
function Conditions Display Buzzer Safety operation
Upper limit
temperature
alarm
The chamber temperature exceeds the
upper limit alarm temperature set value. OVERHEAT indicator lights. Continuous tone
Heater OFF
Remote alarm
operates
Automatic set
temperature
alarm
The chamber temperature is out of the
automatic set temperature alarm setting
range (±1.0 to ±5.0oC).
Warning :High Temp or
Warning :Low Temp
is displayed in the message display
field.
Intermittent tone
after set alarm delay
time (0 to 15 min)
has elapsed
Remote alarm
operates after delay
of 0 to 15 min.
Automatic set
CO2
concentration
alarm
The chamber CO2 concentration is out
of the automatic set CO2 concentration
alarm setting range (±0.5% to ±5.0%).
Warning :High CO2 Density or
Warning :Low CO2 Density is displayed
in the message display field.
Intermittent tone
after set alarm delay
time (0 to 15 min)
has elapsed
Remote alarm
operates after delay
of 0 to 15 min.
Automatic set
O2
concentration
alarm
The chamber O2 concentration is out of
the automatic set CO2 concentration
alarm setting range (±0.5% to ±5.0%).
Warning :High O2 Density or
Warning :Low O2 Density is displayed
in the message display field.
Intermittent tone
after set alarm delay
time (0 to 30 min)
has elapsed
Remote alarm
operates after delay
of 0 to 30 min.
Auto-return There are no key operations for approx.
90 s in a setting mode. Top screen is displayed. ----- The setting mode is
canceled.
Key lock The key lock is ON. Key Lock is displayed on the standby
operation setting screen. ----- Setting changes are
prohibited.
Door alarm The outer door is open. Door Open is displayed in the
message display field.
Intermittent tone
after set alarm delay
time (1 to 30 min)
has elapsed
The CO2 valve is
closed.
The N2/O2 valve is
closed.
The heater turns
OFF after 1 min.
CO2 gas
cylinder empty
The CO2 concentration does not
increase when the CO2 valve is
opened.
Err01: CO2Gas Empty is displayed in
the message display field. Intermittent tone Remote alarm
operates.
N2 (or O2) gas
cylinder empty
The O2 concentration does not increase
when the N2/O2 valve is opened.
Err02: N2/O2Gas Empty is displayed
in the message display field. Intermittent tone Remote alarm
operates.
CO2 line
changeover
The CO2 gas supply is switched
automatically to the reserve cylinder
(only when the MCO-21GC is installed).
Err01: CO2Gas Empty is displayed in
the message display field.
The text flashes for the empty CO2 gas
supply line.
The CO2 gas supply
is switched.
Remote alarm
operates.
N2 (or O2) line
changeover
The N2/O2 gas supply is switched
automatically to the reserve cylinder.
Err02: N2/O2Gas Empty is displayed
in the message display field.
The text flashes for the empty N2/O2
gas supply line.
The N2/O2 gas
supply is switched.
Remote alarm
operates.
Connection
mistake of
CO2 line and
N2
(
or O2
)
line
The CO2 concentration keeps
increasing when the CO2 valve is
closed.
Err03: CO2Gas Connect Abnormal is
displayed in the message display field.
The CO2 valve is
closed.
The N2/O2 valve is
closed.
Selection
Mistake of
N2 gas and
O2
g
as.
The O2 concentration keeps keep
changing into the opposite direction
when the N2/O2 valve is opened.
Err04: N2/O2Gas Connect Abnormal is
displayed in the message display field.
The CO2 valve is
closed.
The N2/O2 valve is
closed.
Chamber
temperature
sensor error
The chamber temperature sensor is
disconnected.
Err05 Temp Sensor Open
is displayed in the message display
field.
The heater turns
OFF.
Remote alarm
operates.
The chamber temperature sensor is
short-circuited.
Err06 Temp Sensor Short
is displayed in the message display
field.
The heater turns
OFF.
Remote alarm
operates.
Sensor box
temperature
sensor error
The sensor box temperature sensor is
disconnected.
Err07: CO2S Box Temp Sensor Open
is displayed in the message display
field.
CO2 valve is closed.
Remote alarm
operates.
The sensor box temperature sensor is
short-circuited.
Err08 CO2S Box Temp Sensor Short is
displayed in the message display field.
CO2 valve is closed.
Remote alarm
operates.
Ambient
temperature
sensor error
The ambient temperature sensor is
disconnected.
Err09: AT Sensor Open is displayed in
the message display field. Remote alarm
operates.
The ambient temperature sensor is
short-circuited.
Err10: AT Sensor Short is displayed in
the message display field. Remote alarm
operates.
CO2 sensor
error
The Vref or Vgas output voltage for the
CO2 sensor is abnormal.
Err11: CO2Sensor Vref Abnormal or
Err12: CO2Sensor Vgas Abnormal is
displayed in the message display field.
CO2 valve is closed.
Remote alarm
operates.