Beckman Coulter Avanti J-25, Инструкция по эксплуатации

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2-9
Description
Function Keys
Pressing [
ENTER
] or another function key saves parameter entries.
[
ROTOR
]
Pressed to select the rotor in use. When [
ROTOR
] is pressed, the rotor
type soft keys are displayed (JA: fixed angle rotors; JS: swinging
bucket rotors; JLA: lightweight fixed angle rotors; JV: vertical tube
rotors; JE: elutriation rotors; JCF-Z: continuous flow/zonal rotors).
Pressing a rotor soft key displays a list of the rotors of that type that
can be used. (Abbreviated rotor names are displayed.)
[
SPEED
]
Pressed to enter a run speed, in rpm or rcf
×
g . Use the RPM and RCF
soft keys to toggle between rpm and rcf setting modes, then enter the
speed setting using the keypad. If you enter a speed setting above the
maximum rpm permitted for the installed rotor, a message will
prompt you to select a speed within the rotor’s valid range, and will
display the range (in rpm or rcf).
If you start a run without selecting a rotor, and the speed setting is
above the maximum for the installed rotor, during acceleration the
centrifuge will identify the rotor and reduce the speed setting to the
maximum for that rotor. A message will alert you to the change.
[
TIME
]
Pressed to enter run time (using the keypad). When [
TIME
] is pressed,
the last digit on the TIME display flashes, the three time modes
appear in the soft key display area: HH:MM (hour:minute),
ω
2
t
, and
HOLD.
• Timed run (HH:MM) — Run time up to 99 hours and 59 minutes
can be set. If more than 59 minutes are entered in the minutes field,
the system automatically converts the entry to hours and minutes.
Deceleration begins when the set time counts down to zero. The
corresponding
ω
2
t
value can be displayed by pressing the W2T
soft key.
•
ω
2
t
run — An
ω
2
t
value can be entered and the system will calcu-
late the run time required to reach that value. Valid
ω
2
t
settings are
different for each rotor; a message will appear if an invalid entry is
made. Deceleration begins when the calculated run time counts
down to zero, but
ω
2
t
continues accumulating until the rotor stops
spinning.
• Continuous run (Hold) — For runs of unspecified lengths, hold
mode is used. The display will show the accumulated run time.
When 99 hours, 59 minutes is reached, the system resets to 0 and
continues counting. The run will continue until the [
STOP
] key is
pressed.