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R-9ZOO
OPERATING
SEQUENCE
INTELLIGENT
SENSOR
COOKING
CONDI-
TION
The
oven
cooks
foods
automatically
by using
the
weight
sensor cooking
condition
or the absolute
hu-
midity sensor (AH sensor) cooking
condition.
Weight
sensor
cooking
condition.
1. The oven detects the weight
of food automatically
when food is placed into the oven.
2. The oven sets the cooking
condition
and cooking
time
automatically
when
the
food
category
is
inputted.
3. The oven starts cooking
when
the start button
is
pressed.
AH sensor
cooking
condition
1. This is the same as Sensor cooking
condition
of the
base model (R-9HlO)
INSTANT
ACTION
SENSOR
COOKING
CONDITION
This is the same as INTELLIGENT
SENSOR
cooking
condition.
In this condition
the oven starts soon when
touching
INSTANT
ACTION
SENSOR pads.
DEFROST
SENSOR
CONDITION
The oven
heats food
automatically
by using
Weight
sensor cooking
condition.
SENSING
FIRE OPERATION
The oven will
stop its operation
when
there is fire in
the oven cavity in microwave
cooking
condition.
l
LSI measures
the voltage
across the temperature
measurement
circuit
intermittently
within
a 32 sec-
ond time base since the oven is started
in micro-
wave
cooking
condition.
The oven
will
stop
its
operation
when the difference
of the voltage
is more
than 0.3 volts in microwave
cooking
condition.
1.
2.
3.
4.
Within
a 32 second
base, first thermistor
is ener-
gized
for 3 seconds.
After
2 seconds
since the
thermistor
is energized,
the voltage
across the tem-
perature measurement
circuit
is measured.
And af-
ter 21 seconds
since the thermistor
is cut off, the
convection
motor operates for 6 seconds.
The oven carries out the procedure
above again.
If
the second
voltage
is 0.3V
higher
than
the first
voltage,
LSI judges it is a fire in the oven cavity and
stops the oven.
When sensor cooking,
the sensing
fire operation
is
not carried out until the oven senses the steam from
food.
Because food cannot
be cooked well by ro-
tating the convection
fan at that time.
After sensing
the steam, the sensing fire operation
is started.
When
LSI judges
it is fire in the oven cavity,
LSI
will
switch
off the relays to the power transformer,
fan motor
and convection
motor
and
LSI stops
counting
down.
that the fresh air
ity.
Q?
i f
CONVECTION
, ,
MOTOR
; I
ON
;I
And then the damper is closed so
does not come into the oven cav-
2P
3? ?2 (sec.)
t?Osec.
i
i
!
' !
ii
I
1 1 3 sec.
I
THERMISTOR
+
;tc-
I
I
I
I
Sensing
Voltage
Sensing the voltage across temperature
measurement circuit.
3
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