Sharp R-961 (W) - Page 11

OPERATION SEQUENCE
ROTISSERIE COOKING
When the ROTISSERIE COOKING key is touched before
touching the START key, the following operations also
occur:
1. Relay RY8 is energized and main supply voltage is
supplied to the rotisserie motor.
2. In dual cooking (Microwave and Grill) condition with the
rotisserie in operation, the microwave power level can be
programmed 10% or 30% and the grill heating element
operates intermitently (on for 26 seconds and off for 22
seconds).
ABSOLUTE HUMIDITY SENSOR (AH SENSOR) COOK-
ING 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 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.
1. Potatoes at room
temperature. Vapour
is emitted very slowly.
2. Heatpotatoes. Moisture
and humidity is emitted
rapidly. You can smell
the aroma as it cooks.
3. Sensor detects moisture
and humidity and
calculates cooking time
and variable power.
R-961 - 9
AH SENSOR COOKING SEQUENCE
1. Whenthe AH sensor cooking condition is started, the coil
of shut-off relays (RY1+RY5) are energized, the oven
lamp and cooling fan motor are turned on, but the high
voltage 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. Afterabout 16seconds, the cook relay (RY2) is energized.
The high voltage 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: Incase 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+RY5) and cook relay (RY2) are
de-energized and the high voltage 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.