1-5
Description
Figure 1-2. The Rotor Chamber
VACUUM SYSTEM
The vacuum system is automatically activated when
and
_78%68a
are pressed, or it may be turned on directly by pressing
the
_:%'991a
key. Three vacuum LEDs, labeled 750, 200, and <20,
are located in the middle of the upper display to indicate the level of
chamber pressure in microns.
At the end of a run, the chamber vacuum must be vented (by pressing
_:%'991a
) before the door can be opened. After the door is opened,
the chamber is brought to approximate room temperature to prevent
condensation from collecting in the chamber. To help keep the
chamber dry and clean, the door should be kept closed whenever
possible.
A purge system removes significant amounts of moisture from the
vacuum pump and chamber. If it takes a long time to pull a vacuum,
however, it is likely caused by excess moisture in the system. Refer
to Section 4 for information on correcting this condition.
Photoelectric
Devices
Drive
Spindle
Safety
Plate
Radiometer
ENTER/RECALL
Содержание Optima LE-80K
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