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NN-C897WB
NN-C897CB
NN-C877WB
NN-C877CB
6. Auto sensor (NN-C897WB NN-C897CB)
AUTO SENSOR
,
:
;
CATEGORY
POWER 1 | POWER 2|_
K FACTOR
As food cooks a certain amount of steam is produced. If the food is
:
P
REHEAT FRIDGE
covered this steam builds up and eventually escapes from the
container. In Auto sensor cooking, a carefully designed instrument
REHEAT ROOM
called the humidity sensor element detects this escape of steam.
Based upon the auto sensor program selected the microcomputer
will automatically determain the correct power level and the correct
length of time for the food to cook perfectly.
NOTE: Auto sensor cooking is successfull with the foods and recipes
found in the auto sensor cooking guide. Due to the vast differances
in food compisition items not mentioned in the cooking guide should
AUTO
SENSOR
COGKING/REHEAT
PROCESS
:
:
'
START
MAGNETRON
STEAK
STOP
DOOR
be prepared in the microwave oven using the standard power select
ON
DETLCTED
OPEN
andtime features. Please consult the variable microwave cookbook
V
V
v
V
v
for procedures.
Ir TIME]
T1 TIME
12 TIME
30 MIN
15 SEC
30 | 30
SEC
SEC.
Explanation of the autosensor cooking process
+++
—
(1) The shaded columns in the graph indicate when the humidity sensor
element is on.
BER:
Sauce
(2) During the second 30 second period there is no microwave activity,
and when calculating the T2 time by using the formula below make
Y
ieee
y
sure this time is subtracted from the TO time.
Z
Z
(3) T1 time... The total amount of time it takes the microwave oven to
REFRESHING
switch to the T2 time.
During this time one of the Auto sensor
programs will be shown in the display.
(4) Time T2... When
the steam escapes from the cooking container
placed in the oven, the humidity sensor detects it and the
at
microprocessor calculates the balance of cooking time.
This T2
NOTE:
YOU CANNOT OPERATE THE
time is shown in the display and starts to count down.
AUTOSENSOR PROGRAMS UNTIL
Balance of cooking time (T2 time)
aa:
=f heaeaies '
The balance of cooking time which is called T2 time can be
calculated using the following formula.
T2 time = T1 time x K factor
NOTE: When caculating the T2 time , the time in seconds is rounded
to the nearest facor of ten. For example:
T1 time = 76 seconds
T2 time = 70 seconds x K factor
The T1 time will start after the start pad is pressed. The coefficient
K is programmed into the microprocessor memory, the table above
shows examples of power and the K factors for certain catergories.
When the "more" or "less keys" are pressed, the K factor will vary
resulting in the T2 time also varying.
Example of T2 time calculation.
If the T1 time is measured to be 2 minutes and 45 seconds and the
auto program selected in (AUTO SENSOR COOK)
5.
Fresh fish
T2=T1xK
= 2 min 45 sec x 0.3
= 160sec x 0.3
= 48 sec
7. Cook navigation system. (NN-C897WB NN-C897CB)
The purpose of the cook navigation system is to simplify the
operation of the microwave oven, this is achieved by revealing the
key pads in the correct sequence to guide the operator in the
programming and operation of the microwave oven.
During programming of the microwave oven the DPC outputs digital
signais to a liquid crystal display. The liquid crystal display is placed
between the membrane keypad and the escutcheon sheet.
The
digital output received
by the liquid display results in certain
segments of the displayed opening. The opening of these segments
has the effect of indicating which keys can be operated next in the
sequence for correct programming of the microwave oven.
-14-
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