Parameter Keys - Beckman Coulter Optima XL Series Instruction Manual

Run Preparation

PARAMETER KEYS

    ✼ ✼ ✼ ✼ ✹ ✹ ✹ ✹ ✮ ✮ ✮ ✮ ✮ ✮ ✮ ✮ ✭ ✭ ✭ ✭ ❛ ❛ ❛ ❛ HARDKEY
2-8
✮✷✽✮✻❛ ✼✽✸✹❛
• Press and
existed when the rotor began deceleration).
✻✸✽✸✻❛
The hardkey is discussed briefly in this section as one of the
parameter keys. See Section 4 for a full description of rotor functions.
Run speed can be set between 1000 rpm and the instrument model's
maximum speed, in increments of 100 rpm, and will be displayed in the
SETTINGS window. Zero can be selected as the run speed in order to delay
starting the run while maintaining the rotor at a specific temperature.
Actual rotor speed is displayed in the CURRENT VALUES window. Speeds
between 0 and 1000 rpm are shown in increments of 10, speeds above
1000 rpm are shown in increments of 100.
To enter or modify the SPEED setting:
✼✹✮✮✭❛
1. Press . The SPEED field blinks.
2. Use the keypad to enter or modify the speed. (The last two digits are fixed
as zeros and cannot be changed by keypad entries.)
3. Check the SPEED setting. If the entry is incorrect, press
enter the correct value.
4. Press another parameter key or
is valid, the SPEED field stops blinking.
You may change the speed setting at any time (except when the instrument is
using ESP program settings or is in a locked operation). The rotor will
accelerate or decelerate to the new speed accordingly.
At 1000 rpm the set speed is checked against the rotor's overspeed disk. If the
speed setting is greater than that allowed by the overspeed disk, the run will
continue uninterrupted, but the rotor speed will be lowered to the maximum
speed permitted by the disk. A SPEED cautionary message will appear, indi-
cating that this change was made.
The rotor will not accelerate beyond 3000 rpm until the chamber pressure
drops below 750 microns. At that point the rotor accelerates to set speed.
to display the STOP VALUES— (the values that
✮✷✽✮✻❛
to save the run speed. If the value
once, and
ce