Section 2 - Incubator Settings
2.1 Incubator Start-Up
With the incubator properly installed and connected to
power, the humidity water bottle filled, and the unit connected
to gas supplies, system setpoints can be entered. The following
setpoints can be entered in Settings mode: Temperature,
Overtemp, CO
2 and RH. To enter Settings mode, press the
Mode key until the Settings indicator lights. Press the right
and/or left arrow keys until the proper parameter appears in the
message center. See Chart 2-1 for more detail.
a. Setting the Temperature Setpoint
The temperature setpoint range is 10°C to 50°C, settable to
within 0.1°C. The lowest temperature the incubator can control
is +5°C above the ambient temperature in the incubator’s loca-
tion. The incubator is shipped from the factory with a tempera-
ture setpoint of 10°C. At this setting, temperature control and
alarms are turned off. To change the temperature setpoint:
1. Press the Mode key until the Settings indicator lights.
2. Press the right arrow until “Temp XX.XC” is displayed
in the message center.
3. Press the up/down arrow key until the desired tempera-
ture setpoint is displayed.
4. Press Enter to save the setpoint.
5. Press the Mode key until the Run indicator lights for
Run mode or press the right/left arrow keys to go to
next/previous parameter.
b. Setting the Overtemp Setpoint
The independent overtemp system is designed as a
safety to protect the incubator only. It is not
intended to protect or limit the maximum tempera-
ture of the cell cultures or customer’s equipment
inside the incubator if an overtemp condition
occurs.
The Steri-Cult incubators are equipped with a secondary
temperature monitoring system to monitor the air temperature
inside the cabinet. This system is designed as a safety device to
turn off all heaters in the event of a temperature control failure.
Temperature control in the incubator will be ±1° of the
overtemp setpoint.
The overtemperature is set by the factory (default) at 40°C.
However, the overtemp can be set up to 55°C in 0.1° incre-
ments.
If the incubator’s operating temperature setpoint is set
above the overtemp setpoint, the overtemp setpoint will auto-
matically update to 1°C above the temperature setpoint.
2 - 1
It is recommended that the overtemp setpoint be main-
tained at 1°C over the operating temperature setpoint.
To change the Overtemp setpoint:
1. Press the Mode key until the Settings indicator lights
2. Press the right arrow until OVERTEMP XX.XC is dis-
played in the message center
3. Press the up or down arrow key until the desired
Overtemp setpoint is displayed
4. Press Enter to save the setting
5. Press the Mode key until the Run indicator lights or
press the right or left arrow to go to the next or previous
parameter.
c. Setting the CO
2
Setpoint
The CO
2 setpoint range is 0.0% to 20.0%, settable to within
0.1% CO
2. The incubator is shipped from the factory with a
CO2 setpoint of 0.0%. At this setting, all CO2 control and
alarms are turned off. To change the CO2 setpoint:
1. Press the Mode key until the Settings indicator lights.
2. Press the right arrow until “CO2 XX.X%” is displayed
in the message center.
3. Press the up/down arrows until the desired CO
2 setpoint
is displayed.
4. Press Enter to save the setpoint.
5. Press the Mode key until the Run indicator lights to go
to Run mode or press the right/left arrow keys to go to
next/previous parameter.
d. Setting the Relative Humidity (RH) Setpoint
The RH setpoint range is 0% to 95%, settable to within 1%
RH. (Settings above 90% may cause some condensation to
occur in the chamber.) The incubator is shipped from the facto-
ry with an RH setpoint of 0%. At this setting, all RH control,
water level control and alarms are turned off. To change the
RH setpoint:
1. Press the Mode key until the Settings indicator lights.
2. Press the right arrow until “RH XX%” is displayed in
the message center.
3. Press the up/down arrows until the desired RH setpoint
is displayed.
4. Press Enter to save the setpoint.
5. Press the Mode key until the Run indicator lights to go
to Run mode or press the right/left arrow keys to go to
next/previous parameter.
On power-up or a temperature setpoint change, RH is
delayed until the temperature is within 0.5°C of the setpoint.
RH WAITS ON TEMP is displayed until this temperature is
reached.
Steri-Cult Incubator ______________________________________________________________________Incubator Settings
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