Setting The Temperature - Thermo Scientific HP88854100 Instrucciones De Operación

O
PERATION
Note
The solution temperature is approximately
25% cooler than the hot plate surface
temperature.
Note
If you allow the top plate to reach the
maximum temperature of 540°C while
preheating and then turn the control
down to a setpoint less than 200°C, the
temperature of the top will drop rapidly
to 200°C. Because of the natural cooling
characteristics of ceramic, the temperature
of the top will drop much more gradually
after the top plate temperature reaches
200°C.
Note
Boiling times are dependent on solution
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.
26

Setting the Temperature

Your Cimarec stirring hot plate has an electronic
+
closed-loop feedback control which will accurately
maintain temperature setpoints in 1° increments from
30°C through 300°C, 400°C or 540°C, depending on
the model. An unloaded hot plate will heat to maximum
temperature in just 8 minutes. The temperature is
controlled at the top plate by the internal sensor. A
"CAUTION - HOT TOP" light on the front panel will
illuminate whenever the top surface temperature
exceeds 50°C.
Your Cimarec + stirring hot plate will display the tempera-
ture in °C. When choosing a setpoint, the display will
indicate the setpoint for 2 seconds, after which the dis-
play will flash until the desired setpoint is reached.
When pluging in the remote probe , turn the temperature
knob to "OFF", then adjust new temperature setpoint
Value. The probe light will illuminate when the remote
probe is plugged in. "CAUTION - HOT TOP" light will
flash until the top surface has cooled to below 50°C.