Specifications

PN SJ-IM-8AC
1-5
Description
Controls and Indicators
1
Figure 1.2 The Control Panel
Digital Displays
The displays provide run information, user messages, and diagnostics.
• During a run, they show the actual (real-time) operating conditions.
• When the run parameters are being entered, they show the set values selected. Set values can
be recalled during operation by pressing
SHOW SET. After 5 seconds, the displays return to
actual conditions.
SPEED Indicates rotor speed in revolutions per minute (RPM), or in relative centrifugal field, a
term describing the ratio of the centrifugal acceleration at a specified radius and speed
to the standard acceleration of gravity (RCF ´ g).
TIME • In a timed run, indicates the remaining run time in hours and minutes. The time
display begins counting down when START is pressed and continues counting
down to 0, when deceleration begins. The run automatically ends when the set
time reaches zero (a tone sounds when the rotor stops spinning). If a malfunction
shuts down the centrifuge during a run, the time counting stops and the time
remaining when the run stopped remains in the display. By comparing this time
with the original set time, you can determine when the run ended.
• In a hold run, indicates the time elapsed since START was pressed. After 99 hours
and 59 minutes the timer resets to 0 and continues counting elapsed time.
TEMPERATURE Indicates rotor temperature in degrees C at thermoequilibrium. The displayed
temperature is within ± 2 degrees of the set temperature (after equilibration).
ROTOR Displays the name of the installed rotor.
ACCEL When the ACCEL key is pressed, an acceleration rate (1 = MAX, 2 = SLOW) can be
entered. If no number is entered, the instrument accelerates at the rate set for the
previous run.