CORNING PC-400D Manuel d'instruction - Page 7
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6. Secure the position of the External Temperature Controller by using a ring stand/support
rod and clamp.
Ensure the cable of the External Temperature Controller does not come into contact with
the heating surface.
7. Turn the Heat Control Knob until the Heating Temperature Display shows the desired
heating temperature.
Flashing Display: The number shown on the Heating Temperature Display will FLASH
when the actual heating temperature is not at the set temperature.
Constant Display: The number shown on the Heating Temperature Display will remain
constantly ON when the actual heating temperature is at the set temperature.
Hot Top Indicator: The Hot Top Indicator will be ON at all times when the temperature
of the top surface is too hot to touch (greater than approx. 60°C).
The Hot Top Indicator will FLASH when the Heat Control Knob is turned OFF but the top
surface is still too hot to touch.
The Hot Top Indicator will be OFF when the temperature of the top is less than approx. 60°C.
CAUTION: The Hot Top Indicator will turn OFF when the power cord is
disconnected from the product even if the temperature of the top surface is still
too hot to touch.
7.0 Heating Operation
7.1 Principles
The heating element and a temperature sensor are located just beneath the ceramic top
surface of the product. The microprocessor-controlled heat, generated by the heating
element, is based upon the sensor temperature and the value set on the Heating
Temperature Display. When the sensor temperature is not within range of the value set on
the display, the display will FLASH. When the sensor temperature is within range, the value
displayed will remain constantly ON.
The Heating Temperature Display does not indicate the actual temperature of materials
placed on top of the product or the actual temperature of the ceramic top surface.
The following table shows a typical difference between the temperature set on the Heating
Temperature Display and the actual temperature measurement of the ceramic top surface.
Temp. Set on
Display (°C)
50
100
150
200
250
300
(This information was taken using a 6795-420D with no top load in 20°C ambient
conditions).
Actual
Top Surface
Temp. (°C)
45
85
125
165
205
245
Temp. Set on
Top Surface
Display (°C)
Temp. (°C)
350
400
450
500
550
Instruction Manual
Actual
285
325
365
405
440
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