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Operation
Heated Operation
For faster performance, preheat the unit by turning the “HEAT POWER ON” switch to the right and
setting the temperature controller to the desired operating temperature. In some conditions, it may
be necessary to set the operating temperature approximately 15-20 degrees above the desired
sample temperature (maximum 160⁰F). Dry block or water bath heaters may be purchased
separately to preheat samples.
The temperature probe is located underneath the lid, above the centrifuge bowl. The temperature
display indicates the temperature inside the bowl, NOT the samples. To determine sample
temperature, a thermometer must be placed inside each sample tube once a test is complete.
Thermometers may be purchased separately.
Motor Operation
• Press the “PUSH TO RUN” button. Verify the motor RPMs in the display, which shows actual RPMs
(not theoretical).
• Turn the “SPEED ADJUST” control knob to the desired speed (see Appendix A for various RCF
values). To prolong centrifuge life, use the lowest feasible speed setting. The maximum allowable
speed is 2000 rpm. DO NOT attempt to run the motor with the door open, as the unit is designed to
shut off when the door is opened.
• When the RPM INDICATOR reads “0”, wait a few seconds to open the door. DO NOT force the door
open. A locking mechanism automatically engages the when the motor is turned on and stays
engaged until the motor stops spinning.
• Verify that th
e trunnion arm has come to a complete stop. Remove samples and close the door.
Keep the door closed at all times, as this minimizes heat loss.
• Contact the L-K
Industries Tech Helpline for instructions for manually bypassing the locking
mechanism. The manual bypass should ONLY be done to verify centrifuge speed.
Timer Operation
The Countdown Timer Display indicates the amount of remaining time on a test. If the countdown
time must be changed, the controller must be reprogrammed. The controller will prompt for a code
to change the program. Enter code “055”. See Appendix C for the Timer Quick Programming Guide.
Otherwise, contact the L-K Industries Tech Helpline for timer programming instructions
NOTE:
On initial startup or after any programming changes, reset the unit before beginning operation.
