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[7] AUTOMATIC COOKING
Automatic cooking functions automatically work out the correct cook-
ing mode and cooking time and/or cooking temperature. They will cook
according to the special cooking sequence. Express Cook, Express
Defrost, Sensor Cook, POTATO, and INSTANT ACTION are automatic
cooking functions.
[8] POWER OUTPUT REDUCTION
After the same cooking mode is carried out for more than the basis
cooking time, the power output is automatically reduced by turning the
control relays on and off intermittently, as shown in the table below.
This is to protect the oven door against temperature rising.
Basis cooking
Cooking mode
time (minutes)
Microwave (100%)
20
Grill
15
Convection
40 (Micro.)
Micro. (70%)
+ Grill
15 (Grill)
D
15 (Micro.)
U
Micro. (100%)
A
+ Grill
15 (Grill)
L
40 (Micro.)
Micro. (70%)
+ Conv.
NOTE: 1) If the multiple sequence cooking is carried out in the same
mode, the basis cooking time is calculated from the first.
2) Even if the cooking is stopped by the STOP key or opening
the door, the basis cooking time is calculated from the first.
3) If the same cooking mode is repeated within 1 minute and
15 seconds, the basis cooking time is calculated from the
first.
4) If the same menu of Automatic Cooking is repeated within
1 minute and 15 seconds, the power output of the micro-
wave or the grill will be reduced to 70% after 20 minutes
when the oven is started at first.
[9] FAN MOTOR OPERATION
(in Grill, Convection and Dual mode)
When oven is stopped during cooking, or after the cooking is com-
pleted, the fan motor will operate if the oven cavity temperature is
above 120°C, and the fan motor will stop if the oven cavity tempera-
ture is below 105°C.
[10] CONVECTION MOTOR OPERATION
If the temperature of oven cavity is higher than 120 °C after and when
operated by 250°C convection cooking, 250 °C dual convection cook-
ing or 250°C preheating, the convection motor will operate for maxi-
mum 1 minute until the oven cavity temperature drops below 105°C.
[11]
ABSOLUTEHUMIDITYSENSOR
SENSOR)COOKING CONDITION
When the AH sensor is used, the foods are cooked in microwave
cooking mode without figuring time, power level or quantity. When the
oven senses enough steam from the food, it relays the information to
its microprocessor which will calculate the remaining cooking time and
power level needed for best results. When the food is cooked, water
vapour is developed. The sensor "senses" the vapour and its resis-
tance increases gradually. When the resistance reaches the value set
according to the menu, supplementary cooking is started. The time of
supplementary cooking is determined by experiment with each food
category and inputted into the LSI.
An example of how sensor works:
Reduced power
Time base
output (%)
(seconds)
70
32
70
48
No reduction
50
48
50
48
50
48
50
48
50
48
No reduction
(AH
1. Potatoes at room temperature. Vapour is emitted very slowly.
2. Heat potatoes. Moisture and humidity is emitted rapidly.You can
smell the aroma as it cooks.;
AH S E NS OR
3. Sensor detects moisture and humidity and calculates cooking time
and variable power.
[12] AH SENSOR COOKING SEQUENCE
1. When the AH sensor cooking condition is started, the coil of shut-
off relays (RY1+RY6) are energized, the oven lamp and cooling fan
motor are turned on, but the power transformer is not turned on.
NOTE: The oven should not be operated on AH SENSOR COOKING
immediately after plugging in the unit. Wait two minutes before
cooking on AH SENSOR COOKING CONDITION.
2. After about 16 seconds, the cook relay (RY2) is energized. The
power transformer is turned on, microwave energy is produced and
first stage is started. The 16 seconds is the cooling time required to
remove any vapour from the oven cavity and sensor. (Figure O-2)
NOTE: During this first stage, do not open the door or touch STOP
pad.
3. When the sensor detects the vapour emitted from the food, the dis-
play switches over to the remaining cooking time and the timer
counts down to zero. At this time, the door may be opened to stir
food, turn it or season, etc.
NOTE: In case where a small quantity of food is cooked, the oven will
stop without displaying the remaining cooking time.
4. When the timer reaches zero, an audible signal sounds. The shut-
off relay (RY1+RY6) and cook relay (RY2) are de-energized and
the power transformer, oven lamp, etc. are turned off.
5. Operating the door or touching the STOP pad, the time of day will
reappears on the display and the oven will revert to an OFF condi-
tion.
5 – 3
R969(W)
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