BINDER CB 60 - Manual (Page 38)

CB (E6) 09/2013 Page 38/144
5. Start up
After connecting the supply lines (chap. 4.4) turn on the chamber by the main power switch. The pilot
lamp shows the unit is ready for operation.
Observe a delay time of about 30s between turning Off and On again. Otherwise an
initialization problem may occur.
Note that the chamber is in stand-by mode when the main power switch has been turned on and yet the
controller display is dark. Turn on the unit by pressing any controller button.
Warming chambers may release odors in the first few days after commissioning. This is not a quality
defect. To reduce odors quickly we recommend heating up the chamber to its nominal temperature for
one day and in a well-ventilated location.
WARNING: If customer should use a BINDER chamber running in non-supervised
continuous operation, we strongly recommend in case of inclusion of irrecoverable specimen
or samples to split such specimen or samples and store them in at least two chambers, if this
is feasible.
5.1 Equilibration time
Temperature: Equilibration time is approx. 1 hour.
CO
2
: After approx. 5 minutes, the CO
2
concentration equilibrates automatically to the pre-set value of 5
vol.-% CO
2
.
O
2
(unit with O
2
control): After a delay of 10 minutes, the ambient oxygen concentration of approx. 20.7
vol.-% is displayed. During the first 10 minutes, O
2
control is not defined. Then O
2
is regulated to the
displayed setpoint value of 20.7 vol.-%.
5.2 Factory settings
The unit is supplied with the following basic preset parameters:
• Temperature setpoint 37 °C / 98.6°F
• CO
2
concentration 5 vol.-%
• O
2
concentration (unit with O
2
control) 20.7 vol.-%
• Safety controller class 3.1 38.5 °C / 101.3°F
• Sterilization temperature 187.5 °C / 369.5°F
• Audible alarm signal (buzzer) turned on
The set temperature determines the target working temperature in the inner chamber, i.e. set value 37 °C
/ 98.6°F = target working temperature 37 °C / 98.6°F. The same is valid for the CO
2
and O
2
concentration
(unit with O
2
control). For the hot-air sterilization, the set value is 187.5 °C / 369.5°F and cannot be
changed.
As long as there is a difference between the actual and set value shown in the display,
adequate operation of the unit is not guaranteed.