Heating Metal Vessels And Sand Baths; Setting The Time; Hardware Over-Temperature Protection - Thermo Scientific SUPER-NUOVA+ Operating Manual

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The SUPER-NUOVA unit has a Preset Continue function.
It means different presets can run continuously when Preset
Continue is being utilized. The default setting is to turn off the
function. By pressing 1 and then pressing the knob the unit
will run by continuous presets by order 1, 2, 3. By selecting 2
and then pressing the knob the unit will run by continuous
presets by order 2, 3.
See "System Configuration" section of the manual to
activate the Preset Continue function.
Heating Metal Vessels and
Sand Baths
Metal vessels and sand baths cannot be heated on most solid
ceramic tops because of the tendency for the metal and the
sand to reflect heat back into the top, eventually exceeding
the maximum temperature rating for a ceramic top, which
causes it to break. Because of its advanced electronic
control, the SUPER-NUOVA
regulating the top plate temperature. Metal vessels and sand
baths may be heated safely without the danger of the ceramic
top breaking.

Setting the Time

The time function on the SUPER-NUOVA
off heating. To set the time, press "TIME" key located under
display. Hold will begin to flash. Turn the knob until time
shows then press "TIME" key again. Use the knob on the front
panel to select a time. Turn the knob clockwise to increase
the time or counterclockwise to decrease the time. When
desired setpoint has been reached, press the "TIME" key or
wait 10 seconds, the time setpoint will no longer flash
indicating that it has been set. In the temperature rising mode,
when the temperature is more than 2 degree below the
temperature setpoint, the timer will start to count. In the
temperature declining mode, when the temperature is less
than 2 degree above the temperature setpoint, the timer will
start to count.
Figure 9. Setting Time Function
24 | Operation
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is capable of precisely
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can be set to shut
When the time setpoint display shows "HOLD" it means there
is no setting for time function.
Figure 10. No Setting for Time Function
Hardware Over-
Temperature Protection
A hardware Over-Temperature-Protection (OTP) analog
circuit is designed separately to protect unexpected heating.
A small straight blade screwdriver can be used to adjust the
scale at right side of the unit. The protection value can be set
from 60°C to 500°C (or 300°C/450°C depending on models).
Figure 11. Setting protection value
Please notice that this function is only purposed to avoid
abnormal heating if unit is out of control. Users should not use
this function to limit the temperature in normal applications.
Refer to the section 'Over-temperature Set Point – OTP' for
accurate temperature protection.
Default set is at maximum scale.
Hot Plates, Stirrers and Stirring Hotplates