Thermo Scientific SUPER-NUOVA+ HP88850190, Руководство по эксплуатации

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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
+
is capable of precisely
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
+
can be set to shut 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.
When the time setpoint display shows “HOLD” it means there is 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).
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.
O
PERATION