Siemens EH675TK11E Repair Instruction page 31

3.7.2 Operating principle
Food
Enamel
Glass-Ceramic
Radiant Heater
There is a turret which constantly measures the temperature in the
recipient through a system of infrared rays. This turret supplies this
information to the control unit, which regulates the power depending
on this information and then the recipient heats to a specific
temperature.
The cooking-sensor system works with infrared sensors, for which a
recipient with good emission is needed.
In some cases the material of the recipient is not a good transmitter of
heat; thus, it is necessary to stick some stickers which are transparent
206_58300000141095_ara_en_k.doc – 04.10.a
User interface
IR-Sensor
(Thermopile)
Controller
Electronic
Relay
Power
(although they are "black" bodies for the infrared light) to change the
properties of the material.
Black-coloured recipients and recipients with enamel have good
emission. But other materials, such as stainless steel, need the sticker
oriented toward the turret for the system to function.
3.7.2.1 Temperature levels
There are 5 temperature levels for cooking all dishes with the cooking-
sensor:
 70 º C
 90 º C
 100 º C
 120 º C
 170 º C
Moreover, there are 9 automatic programmes, where we choose what
we wish to make and begin to cook.
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