Labnet Prism Air-Cooled Microcentrifuge (C2500) - Manual (Page 14)

Centrifuge cannot be started, although power is on
Possible reason: Lid not closed correctly
Solution Close lid correctly
Possible reason: No speed or time has been selected
Solution: Set speed and/or time
bAL: Error Message Indicates imbalance
Possible reason: Tubes not inserted symmetrically in rotor
holes
Solution: Load tubes symmetrically
(see Section 3.4 on Loading the rotor)
Possible reason: Sample liquid in tubes not balanced
Solution: Make sure the same volume of liquid is
in each tube
Possible reason: Defective or improperly adjusted
balance sensor
Solution: Call service
Lid: (Error message) Lid not closed
Possible reason: Lid not closed completely
Solution: Close lid
Possible reason: Lid lock or sensor defective
Solution: Call service
Other Error Messages Er on Display
Solution: Press time or speed knob to clear error
Call service