Temperature High Or Low; Platform Stalled; Check Fuse - Thermo Scientific SHKE8000 Series Maintenance Manual

Section 2
Operation

Temperature High or Low

Platform Stalled

Check Fuse

2-10 Model SHKE8000 Series Shakers
Temperature High or Temperature Low alerts the operator that the
operating temperature of the shaker has risen above, or fallen below, the
programmed temperature tracking limit
control point. Therefore, either of the
alarm messages shown at right could be
displayed.
In the alarm state, the audible alarm is silenced by pressing the Silence
button, but will ring back in about 15 minutes if the fault condition
persists. The screen message and warning lights continue until the fault is
corrected. After the temperature problem is corrected, the alarm message is
cleared by pressing the Silence button.
An alarm time delay of 3.5 hours is activated when the unit is first turned
on or when the temperature setpoint is changed to allow adequate time for
the heating or refrigeration (Model SHKE8000-7/SHKE8000-8CE)
system to recover to the setpoint. The delay is reduced to 20 minutes
if/when the temperature is within the temperature setpoint alarm band. See
Section 3 for further information on setting the tracking alarm.
Platform Stalled alerts the operator that
free platform movement is inhibited. The
motor automatically shuts off and the
audible alarm, screen message and warning lights are activated. The motor
will attempt restart after approximately 15-20 seconds. The motor will
continue to cycle on and off until the obstruction is removed, or the unit is
turned off. On motor restart, the audible alarm and warning lights are
automatically cleared. The display message remains until cleared by the
operator.
Check Fuse alerts the operator that
primary drive motor fuse has blown. The
audible alarm, screen message and warning
lights are initiated. When the unit is turned on after fuse replacement, all
alarm indicators are automatically cleared.
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