Heathrow Scientific Gusto Manuel D'instructions page 5

Quick Spin Operation:
1. Prepare the unit for centrifugation as in the General Operation
(section above Steps 1-8).
2. Press Quick Spin button (rotor should spin up to the set speed).
3. The timer will begin counting.
4. Once enough time has elapsed for your needs, release the Quick
Spin button. The rotor will spin down, stop and the unit will emit a
beep when the cycle is complete.
5. To open lid, press the OPEN button.
Other:
Change Between RPM and RCF
- Prior to a spin cycle, press both the Speed Up & Down buttons
simultaneously.
- The speed setting will then convert to the other.
Quick Stop
- If for any reason you need to stop the cycle quickly, press and hold
the Start/Stop button. The cycle will stop more rapidly than normal.
Caution: The tube contents may be disturbed during the quick
stop process.
Error:
• If an error happens, the unit will beep and the display will indicate
the error.
• Press Start/Stop to clear the error from the display.
STATUS ERROR
Rotor Lock
Error Status
Motor — Something is interfering with the rotor. Clear the rotor and
reset.
Overload
User Stop
— The operator has held down the Start/Stop and
implemented a quick stop.
Balance — Inspect the tubes for equal tube fill or improper placement.
Once corrected, rerun.
— If the balance error continues to happen, remove the tubes
and determine if the balance error still persists with an
empty rotor.
— Inspect the rotor for improper installation.
Temperature — The unit has exceeded the normal operating temperature.
— Turn off the unit and allow to cool.
Excessive Tilt — The unit has experienced a non-normal tilt event.
— Make sure the unit is placed on a level surface.
Once corrected, rerun
Lid Fail — The lid has opened during the cycle. Check for proper
operation of the lid lock mechanism. The lid should stay
locked during the entire cycle.
Rotor Lock
— The unit has experienced a problem with the rotor.
— Correct the rotor interference. Once corrected, rerun.
8
Status of Unit
Error Type
Resolution
Trouble Shooting
Trouble
No power — Verify that the AC adapter is fully plugged into
present the wall and rear of unit
— Verify that the power switch is turned on
Unit or display — Turn off the unit, wait 2 minutes, and turn power
is not operating on
normally
Excessive — Inspect the tubes for equal fill or improper
vibration placement
Excessive noise — Inspect the rotor for improper installation
— Remove the tubes and determine if the noise
persists with an empty rotor
Lid will not — Verify that nothing is blocking the lid from fully
close closing
— Verify that nothing has fallen into the lock
mechanism opening
Lid will not — If for any reason you need to manually open the
open lid to access tubes due to an error or power loss,
please perform the below
— Turn off the unit, remove power cord
— Make sure the rotor has stopped completely
— Use a thin rod and insert it into the opening
on the bottom
— Press gently but firmly. You will feel a
— mechanical movement within the unit and
the lid will release.
— Remove the rod, set the unit on the feet
— Remove your tubes and reclose the lid
Warning!
Spin balanced loads only!
Do not place the tubes asymmetrically nor load unequal volume
tubes. Improper placement of tubes will lead to insufficient
centrifugation and may cause serious injury or an accident.
Balancing the Rotor
Tubes of equal weight and size should be placed opposite each other.
Use additional sample or water in other tubes to provide a balanced
rotor. Examples of proper sample balancing are illustrated next.
Resolution
9