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Alarms and Alarm
Conditions
Table 4-1. Alarms
Alarm Message
Overtemp Shutdown
Undertemp Shutdown (SHKE8000-7JPN only) System shut down due to under temperature condition
Main Temp Sensor
Over Temp Sensor
Temperature is High
Temperature is Low
RPM is High
RPM is Low
Power Failure
Cycle Complete
Check Belt
Audible is Disabled!
Platform Stalled
Check Fuse
Thermo Scientific
Service
Section 4
Caution 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. To
avoid damage to solid state electrical components, proper grounding
techniques must be observed whenever working on this shaker.
With the exception of the chamber air filter, Model SHKE8000 Series
Orbital Shakers contain no user-serviceable components.
If the microprocessor control system senses a fault, malfunction or
abnormal operating condition, alarm messages appear on the liquid crystal
display. These messages are helpful if service or repair assistance should
become necessary. Refer to Table 4-1 below and the alarm matrix at the
end of this section.
Fault Condition
System shutdown due to over temperature condition
Temperature sensor failed
Temperature sensor failed
Temperature tracking sensed higher temperature than setting
Temperature tracking sensed lower temperature than setting
RPM tracking has sensed shaker speed is higher than setpoint
RPM tracking has sensed shaker speed is lower than setpoint
Power failed during shaker operation, or shaker power is off for more than 1.5 hours
Blank screen, end of countdown cycle reached
Motor V-belt is broken or slipping
Continuously notifies operator that audible alarm is disabled
Free movement of platform is obstructed
Power loss to motor drive circuit board, most likely the primary drive motor fuse is blown
s
MaxQ SHKE8000 Series Shakers
4-1
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