Beckman Coulter Allegra X-30 Series, Инструкция по эксплуатации

Страница: 23 / 64

PN B05529AE
1-5
Description
Controls and Indicators
1
System Keys
The centrifuge operation is controlled through the system keys (see Figure 1.4 ). Each key (except
the
PULSE
key) has an LED in the upper left corner that lights to indicate that the key can be
activated.
Figure 1.4 System Keys
Program Keys
The program keys (see Figure 1.5 ) are used to set run parameters (a program consists of all of the
parameters for a run). Except for the cursor and
ENTER
keys, program keys are located beneath the
applicable digital displays, which show the parameters as they are input. Each key (except for the
cursor keys) has an LED in the upper left corner that lights to indicate operational readiness. The
LEDs also blink if an incorrect parameter is entered.
START Pressing the START key causes the centrifuge run to begin. This key can also be used
to abort a deceleration process and restart the centrifuge.
STOP The STOP key can be pressed to end a run. It operates in two modes, depending on
how you press it:
• Normal stop (press and release):
The centrifuge decelerates to a complete stop according to the preselected
deceleration curve. Deceleration can be terminated and the centrifuge restarted by
pressing START again. The centrifuge emits a series of audible tones when the
rotor reaches 0 rpm. (Instructions for disabling the tones are in CHAPTER 2,
Operation .)
• Fast stop (press and hold for at least two seconds):
The centrifuge decelerates to a complete stop at the maximum rate. The
deceleration cannot be interrupted; the centrifuge can only be restarted after the
rotor stops and the door is opened and closed.
OPEN DOOR Pressing the OPEN DOOR key unlatches the centrifuge door locks and allows the door
to be opened. The centrifuge accepts this command only when the rotor is completely
stopped and the OPEN DOOR key LED is lit.
PULSE Pressing the PULSE key causes the installed rotor to accelerate at the maximum rate
up to the set speed for short-duration runs (as long as the key is pressed).
Deceleration, at the maximum rate, begins when the key is released.