Thermo Scientific 420 Series, Руководство по эксплуатации и техническому обслуживанию

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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 overtemperature setpoint is exceeded by a few tenths of a
degree, the control system will shut the shaker down by turning off the
heaters.
The Overtemp Shutdown warning shown above will be displayed, the
warning lights will flash and the audible warning (if not turned off ) will
sound.
Pressing the Silence button turns off the audible alarm. However, the
warning lights continues to flash and the alarm message continues to be
displayed until the overtemperature condition is corrected. The audible
warning also sounds again in about 15 minutes if the overtemperature
condition persists.
When the fault is corrected, press the Silence button to clear the alarm
message from the display.
The Temperature Tracking alarm activates whenever the operating
temperature goes above or below the setpoint temperature by a
predetermined value. This adjustable limit is set at the factory as 10° above
and below the temperature setpoint.
Note The above and below limits will always be the same value.
s
To change this limit, open the configuration menu as in the previous
Overtemperature Alarm procedure. From the screen above, press the
temperature button beneath Tracking.
2-12 Orbital Shaker Thermo Scientific
Section 2
Operation
Set Overtemperature Alarm
(continued)
Set Temperature Alarm Tracking
Limit