High Temperature Cutout - Thermo Scientific VersaCool User Manual

Chapter 4
Operation |

High Temperature Cutout

To protect your application, the adjustable High Temperature Cutout (HTC) ensures the heater will
not exceed temperatures that can cause serious damage. A High Temperature fault occurs when
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+
the temperature of the sensor exceeds the set temperature limit.
In the event of a fault the bath shuts down and displays a fault message, see Chapter 6. Identify
and correct he cause of the fault must before restarting the bath. A primary reason for the HTC to
trip is a low reservoir fluid level.
The HTC is factory preset fully clockwise to the highest possible setting. To set the cutout start
the circulator and adjust the set point a few degrees higher than the highest desired fluid
temperature. Allow the circulator to stabilize at the temperature set point. Then, using a flathead
screwdriver, slowly turn the red dial counterclockwise until the circulator shuts down and the fault
message appears.
Before you can restart the bath it has to cool down a few degrees.
To restart the bath press the black reset ring surrounding the red dial. If Auto Restart is enabled
the bath restarts, if disabled use the Daily Start Up procedure.
Note We recommend periodically rechecking operation or if the bath is moved.
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Thermo Scientific VersaCool |