Thermo Scientific 420 Series, Руководство по эксплуатации и техническому обслуживанию

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The following screen appears and the present temperature tracking alarm
limit setting flashes.
Change the temperature tracking limit by pressing the up or down arrow.
When set, press the Temperature button to save the setting and return to
the previous screen. If no buttons are pressed for about fifteen seconds, the
display changes to the Operating Screen, saving the new setting to
memory.
When the chamber temperature rises above or falls below the temperature
tracking limit, the appropriate message is displayed, 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 continues to be
displayed until the high or low temperature condition is corrected. The
audible warning also sounds again in about fifteen minutes if the over or
under temperature tracking condition persists.
When the fault is corrected, press the Silence button to clear the alarm
message from the display.
From the Operating screen, press the down arrow, up
arrow and Silence button in that sequence (shown at
the right) to open the Configuration menu.
From the screen below, press the down arrow twice to bring up the
following screen.
Orbital Shaker 2-13 Thermo Scientific
Section 2
Operation
Set Temperature Alarm Tracking
Limit (continued)
Calibrate Speed and
Temperature