Thermo Scientific SHKE8000 Series Maintenance Manual page 36

Section 2
Operation
Set the Undertemperature Alarm The Undertemperature alarm (Model SHKE8000-7/SHKE8000-8CE
only) activates whenever the operating temperature drops below the
undertemp setpoint temperature by a few tenths of a °C. This adjustable
limit is set at the factory at approximately -1°C. To change this value, open
the Configuration menu by pressing the down arrow, up arrow, and the
Silence button in that order.
When the screen at right opens,
press the down arrow once.
Then press the temperature
button beneath Alarms.
To change the
Undertemperature alarm setting,
press the Speed button beneath
Under.
The following screen appears
and the current
Undertemperature alarm setting
flashes.
Change the Temperature setting by pressing the up or down arrow. When
set, press the Temperature button to return to the previous screen or press
nothing for about fifteen seconds. The display will change to the
Operating Screen, saving the new settings into memory.
When the undertemperature setpoint is exceeded by a few tenths of a
degree, the control system turns off the refrigeration system. The
Undertemp Shutdown warning
displays, the warning lights flash and
the audible warning (if not turned
off ) sounds.
Pressing the Silence button turns off the audible alarm. However, the
warning lights continue to flash and the alarm message displays until the
undertemperature condition is corrected. The audible warning will also
sound again in about 15 minutes if the undertemperature condition
persists. After the fault is corrected, press the Silence button to clear the
alarm message from the display.
Thermo Scientific Model SHKE8000 Series Shakers 2-13