Thermo Scientific Heracell Vios 160i CR, Operating Instructions Manual

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3
Description of the Device
Door Switch
3-10
Heracell Vios 160i / 250i CR
Thermo Scientific
Door Switch
Figure 3-5. Door Switch
A door switch is installed at the upper edge of the workspace opening. When the door switch is
activated by opening the glass door, the gas supply and workspace heating are suspended. The display
shows a corresponding message.

An alarm sounds if the door is open longer than 30 seconds. If the door remains open for more than 10
minutes, an audible alarm sounds and the alarm relay responds.

The outer door can only be closed after the glass door has been latched properly.
.
Sensor System
Mounted in the rear wall of the workspace are the fan wheel and the sensor modules:
• Sensor for the acquisition of the workspace temperature and the overtemperature protection
(1/ Figure 3-6 ).
Note Versions with gas-tight screen:

For devices with the optional gas-tight screen, the door switch function described above is activated
when the outer door is opened.