Setting The Temperature - Barnstead SUPER-NUOVA HP133420-33 Operation Manual And Parts List

O
PERATION
Note
The temperature display will indicate
the actual temperature of the top
plate (1°-300°C). This plate does not
cool. The minimum temperature is
1°C if used in a cold room at 1°C.
Note
Boiling times are dependent on solu-
tion volume and the surface area of the
flask that is exposed to the hot plate.
For example, when heating the same
amount of solution in a 2L flask vs. a
1L flask, the solution will heat about
20% faster.
Note
The top plate temperature will be
higher than the solution temperature.
14

Setting the Temperature

The SUPER-NUOVA hot plate and stirring hot plate has
an electronic closed-loop feedback control which will
accurately maintain temperature setpoints from 1°C
through 300°C. A "CAUTION HOT TOP" light on the front
panel will illuminate whenever the top surface tempera-
ture exceeds 50°C. The temperature may be controlled
either at the top plate by the internal Type K thermocou-
ple sensor, or in the solution using an accessory
ungrounded Type K thermocouple probe. If a probe is
used, the "External Probe" light will be illuminated on the
front panel. (A 6" or 10" stainless steel general purpose
immersion probe [part numbers TC732X1 and TC732X2],
or a chemical-resistant 7" Teflon immersion probe [part
number TC727X2] are available by contacting Barnstead
International, 800-553-0039). The SUPER-NUOVA plate
will accept any ungrounded Type K thermocouple probe,
however the accuracy of probes other than those tested
and specified may not reach the probe accuracy rating
designated.
To set the temperature, press "SET" key located under
the HEAT display. Use the knob in the center of the con-
sole to select a temperature. Turn the knob clockwise to
increase the temperature or counterclockwise to decrease
the temperature. When desired temperature has been
reached, press the "SET" key under the HEAT display or
wait a moment and the unit will beep indicating that it has
been set. The SET indicator light will be lit when in SET
mode.
Once the unit begins heating, the display will register
ACTUAL temperature until the setpoint has been reached.
To check your setpoint, press "SET" under the HEAT dis-
play and your setpoint will be displayed again for a few
seconds. The display will automatically return to indicating
actual temperature. Keep in mind, drafts and other tem-
perature fluctuations will affect temperature accuracy.