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R-995J
sensor "senses" the vapour and its resistance 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:
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 SENSOR
3. Sensor detects moisture and humidity and calculates
cooking time and variable power.
AH SENSOR COOKING SEQUENCE
1. In case 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 five 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/CLEAR pad.
3. When the sensor detects the vapour emitted from the
food, the display 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 Opening the door or touching the STOP/CLEAR pad,
the time of day will reappear on the display and the
oven will revert to an OFF condition.
WEIGHT SENSOR COOKING CONDITION
In case where the weight sensor is used, the foods are
cooked without figuring cooking mode, time, power level-
ler weight. When the oven sense the weight of food, it
relays the information to its microprocessor which will set
the cooking mode and will calculate the cooking time and
power level needed for best results.
ACTIVATED SENSOR FOR SENSOR COOKING
The weight sensor and AH. sensor should be worked as
following table.
Sensor
Cooking
Menu
Roast beef, Roast beef dinner
Roast lamb, Roast lamb dinner
S E N S O R
I N S T A N T
Roast chicken
ACTION
Roast chicken dinner
Fresh vegetable, Jacket Potato
Beverage, Soup
Dinner plate, Casserole
S E N S O R
Canned food
REHEAT
Pie
Pizza
Seasoned roast, Grilled fish
Roast turkey, Roast pork
Grilled steak/Chops, Biscuits
Grilled Kebabs, Roast vegetable
Frozen vegetables, Casseroles
Fish fillets, Corned meat
Rice/Pasta, Desserts
I N T E L L I -
Soup, Preserves
GENT SEN-
SOR
Cake
Fresh vegetables Hard
White Rice
Fresh Pasta, Dry Pasta
Instant Noodles
Frozen Pasta
Porridge
Stewed Fruit
D E F R O S T
All menus
SENSOR
The menu "Cake" of Intelligent sensor does not use
neither the weight sensor nor the AH sensor.
FIRE SENSING FEATURE (MICROWAVE MODE)
This model incorporates a sensing feature which will stop
the oven's operation if there is a fire in the oven cavity
during microwave cooking.
This accomplished by the LSI repeatedly measures the
voltage across the temperature measurement circuit (ther-
mistor) during it's 32-seconds time base comparing the
obtained voltage measurements. If the most recent volt-
age measured is 300mV grater than the previous voltage
measured, the LSI judges it as a fire in the oven cavity and
switches off the relays to the power transformer, fan motor
and convection motor. The LSI also stops counting down
and closes the damper door so that no fresh air will enter
the oven cavity. Please refer to the following section for a
more detailed description.
6
Weight
AH.
Sensor
Sensor
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