Beckman Coulter Optima LE-80K, Инструкция по эксплуатации

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2-8
Run Preparation
To select a program for use:
1. Press
_463+a
.
2. Press the appropriate program number.
3. Press and
_78%68a
.
To modify a parameter during the run without affecting the program,
change the setting in the normal manner, then press
.
Do NOT press
_7%:)a
. The instrument will run using the modified
settings, but the program itself will remain unchanged. The number
above the
_463+a
key will go out to indicate that the instrument is
no longer running from program memory.
ACTIVATION KEYS
Use the activation keys to control the following ultracentrifuge
functions.
____::::%%%%''''999999991 1
1 1aaaa
The vacuum system is activated automatically when you press
and
_78%68a
to begin a run. To evacuate the chamber
at another time, make sure the chamber door is closed, then press
_:%'991a
.
As the vacuum system begins to evacuate the chamber, a series of
three LEDs (labeled 750, 200, and <20 microns) blink, remain
lighted, or go off to allow you to monitor the change in pressure (see
Table 2-1). When the pressure drops below 20 microns, the < 20 LED
will remain lit until
_:%'991a
is pressed to vent the chamber at the
end of the run.
Table 2-1. Vacuum LEDs
ENTER/RECALL
ENTER/RECALL
ENTER/RECALL
Pressure 750 LED 200 LED <20 LED
750 or above
220 to 750
20 to 200
<20
blinking
lit
off
off
off
blinking
lit
off
off
off
blinking
lit