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Alarms and Alarm
Conditions
Thermo Scientific
Service
Section 4
Warning The procedures outlined in this section must be performed by
persons experienced in servicing and maintaining laboratory equipment.
Lockout and tagout electrical power connections whenever removing
cabinet panels or working on electrical or motor control components.
With the exception of replacing the drive v-belt and six electrical fuses, the
MaxQ Orbital Shakers contain no user-serviceable components. The
following is a list of display messages, which may help diagnose abnormal
conditions.
If the microprocessor control system senses a fault, malfunction or
abnormal operating condition, alarm messages will appear on the liquid
crystal display. These messages will be helpful should service or repair
assistance be necessary.
Alarm Message
Fault Condition
RPM High
RPM tracking has sensed shaker speed higher than setting
RPM Low
RPM tracking has sensed shaker speed lower than setting
Power Failure
Power has failed during shaker operation
Cycle Complete
Notifies operator that the end of a countdown cycle has been reached
Check Belt
Motor V-belt has broken or is slipping
Audible is Disabled! Continuous operator notification that audible alarm has been disabled
Platform Stalled
Free movement of the platform has been obstructed
Check Fuse
Primary drive motor fuse has blown
s
Orbital Shakers
4-1
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