Thermo Scientific Heracell Vios 160i CR, Руководство по эксплуатации

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6
Handling and Control
User Configuration
Thermo Scientific
Heracell Vios 160i / 250i CR
6-37
Figure 6-42. Switching the O
2
Control on and off
1. To toggle between two states of the O
2
control:
• Press the + key.

or
• Press the - key.
2. The value change appears in the display. The New message indicates that the selection has been
changed, but not saved yet.
3. To accept and save the setting:
• Press the Enter key.
• The system returns to the Options menu.
Airing the Workspace
If the unit is operated with an O
2
or N
2
supply, the workspace must be vented after de-activating O
2
control.
Note Display of O
2
value:

When O
2
control is de-activated, the actual value readout shows three dashes (- - -) in the O
2
display field.

This procedure provides protection for the O
2
sensor. If the set value is set to 21%, the O
2
control
loop is not monitored. This is true for both O
2
control ranges:
• Control range I: 1 % to 21 %
• Control range II: 5 % to 90 %
In this case, the O
2
display shows the actual value.