Thermo Scientific Heracell Vios 160i CR, Operating Instructions Manual

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6
Handling and Control
Factory Presettings of the iCan™ Touchscreen Controls
Thermo Scientific
Heracell Vios 160i / 250i CR
6-7
Factory Presettings of the iCan™ Touchscreen Controls
Upon delivery of the device, the following set values have been preset:
• Temperature: 37 °C
• CO
2
content: 5.0 %
• O
2
content (optional): 21.0 %
Heat-up Phase of the Control Loop Sensors
When the device has been switched on, the control loop sensors pass through a heat-up phase of
varying duration during the start process:
1. Temperature control loop: 10 s
2. CO
2
sensor heat-up period: 5 min
3. O
2
control loop: 5 min
Figure 6-6. Heat-up Phase Display
The start process is indicated by an audible signal. During the heat-up phase, the displays show dots
(...) instead of values:
• Temperature display,
• CO
2
display and
• O
2
display field
After the heat-up phase has been completed, the control loop actual values are indicated.
Note
CO
2
/O
2
control:

Since the CO
2
concentration of the air is nearly 0%, the CO
2
control and the control loop error
monitoring system are disabled at a set value of 0%.

Since the O
2
concentration of the air is 21%, the O
2
control and the control loop error monitoring
system are disabled at a set value of 21%.
Note CO
2
gas supply:

During the 5-minute heat-up phase of the O
2
control loop, the work space is not exposed to CO
2
gas and the CO
2
control and is disabled.