5-4
Care and Maintenance
• Examine the gasket to make sure that it is free of glass particles.
Carefully remove any glass particles that may remain. If glass is
under the gasket, call Beckman Coulter Field Service to replace
the gasket.
• Carefully wipe away any glass particles that remain in the bowl.
SPEED CALIBRATION
SPEED VERIFICATION
To compare the actual rotor speed with the set speed, proceed as
follows, using a digital strobe.
Action
Result
1. Install a rotor.
Reflective
Tape
2. Secure the rotor tie-down nut
onto the drive shaft.
3. Place a strip of reflective tape
on half of the tie-down nut.
4. Shut the centrifuge door.
Move the secondary latch
lever to LOCK.
5. Set the SPEED knob to the
selected speed.
6. Turn the TIME
knob to
HOLD.
The centrifuge will start.
7. When the rotor reaches set
speed, use a calibrated strobe
at the strobe port to verify the
actual rotor speed is within
±30 rpm of the display.
If there is a discrepancy, check the calibration of your strobe. If you
cannot determine the problem, call Beckman Coulter Field Service.
