Power Failure; Rpm Tracking; Check Belt - Thermo Scientific MaxQ SHKE416HP Operating And Maintenance Manual

Power Failure

RPM Tracking

Check Belt

Thermo Scientific
Power Failure alerts the operator that
electrical power to the shaker has been
interrupted, then restored while it was
shaking.While the system will return to normal operation when power is
restored, the alarm message will remain and the audible tone will continue
to sound to alert the operator. Both the display message and the audible
tone are cleared by pressing the Silence button.
Note The alarm will not occur if the power failure is less than 15 seconds
in duration.
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If power is interrupted for two hours or more while the Shaker is turned
on but not shaking, a Power Fail alarm will occur. The purpose of the
alarm in this case is to alert the user that an extended duration power
failure occurred during the Hold interval after a timed shaking operation,
or during a period of incubation only. This alarm will also occur any time
the Shaker is turned on after an extended off period greater than 2 hours
(such as when the unit is shipped from the factory, or when it is returned
to use after a period of storage).
RPM Tracking alerts the operator by
either alarm message shown at the right
that the platform speed has varied ±5
RPM.
Note A two-minute alarm delay is built into software.
In the alarm state, the audible alarm is silenced by pressing the Silence
button, but will ring back in about 15 minutes. The screen message and
warning lights, however, will continue until the fault is corrected. Then,
the alarm message is cleared by pressing the Silence button.
Check Belt alerts the operator that the
drive belt may have broken or something
is slowing or preventing platform
movement. In the alarm state, the audible alarm is silenced by pressing the
Silence button, but will ring back in about 30 minutes. The screen
message and warning lights, however, will continue until the fault is
corrected. Then, the alarm message is cleared by cycling power to the unit
OFF, then ON.
Section 2
Operation
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Orbital Shakers 2-7