N2 Supply; Door Switch; Figure 3-6. Door Switch - Thermo Scientific STERI-CYCLE i160 User Manual

3
Description of the device

Door switch

N supply:
2
If the oxygen content during operation is to be lowered to less than 21% (air oxygen content), the
workspace is supplied with nitrogen. The O
controlled depending on sensor technology.
Door switch

Figure 3-6. 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.
.
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.
i160 / i250
S
3-10 TERI-CYCLE
concentration in the workspace atmosphere can be
2
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