Key Switch Positions; Revolutions Counter; Figure 1-2. Key Switch Positions - Beckman Coulter Optima XL Series Instruction Manual

Description
STANDBY MODE

KEY SWITCH POSITIONS

REVOLUTIONS COUNTER

1-2
When the instrument is at rest, it goes into a "Standby Mode"—a condition
that requires only minimal power to keep the instrument in a ready state. In
standby mode a screen-saver allows the screen to go blank until the instru-
ment is returned to its full operational condition, or "Operating Mode," when
any key on the control panel is pressed.
A key interlock switch is used to select normal, locked, or zonal operation
(see Figure 1-2). Use the normal position for routine closed-door centrifuga-
tion, the locked position to ensure that the settings do not get changed during
the run, and the zonal position for runs in which a zonal rotor is loaded and
unloaded while spinning. (The key cannot be removed while in the zonal
position.)
A seven-digit revolutions counter, located to the left of the key switch,
displays the accumulated number of rotor revolutions in tens of thousands
of revolutions.
Normal

Figure 1-2. Key Switch Positions

Locked
Zonal