Jenn-Air JMD2124WS Technical Education - page 18

3-2

SENSOR COOKING CONDITION

Using the SENSOR function, food is cooked 

without figuring time, power level or quantity. 

When the oven senses enough steam from 

the food, it relays the information to its micro-

processor which will calculate the remaining 

cooking time and power level needed for 

best results. When the food is cooked, water 

vapor is developed. the sensor "senses" the 

vapor and its resistance increase gradually. 

When the resistance reaches the value set 

according to the menu, supplementary cook-

ing 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: (Potatoes)

1. Potatoes at room temperature. Vapor is  

  emitted very slowly.

switch, relay(RY1) and secondary inter-   

lock relay (RY2), causing the fuse to blow.

POWER LEVEL P-0 TO P-90 COOKING

When Variable Cooking Power is pro-

grammed, the 120 volts A.C. is supplied to 

the power transformer intermittently

through the contacts of relay (RY-2) which is 

operated by the control unit within a 32 sec-

ond time base. Microwave power operation 

is as follows:

VARI-MODE  

ON TIME  

  OFF TIME

Power 10(P-HI)    32 sec.   

  0 sec.

(100% power)

Power 9(P-90)   30 sec.    

2 sec.

(approx. 90% power)

Power 8(P-80)   26 sec.    

6 sec.

(approx. 80% power)

Power 7(P-70)   24 sec.    

8 sec.

(approx. 70% power)

Power 6(P-60)   22 sec.    

10 sec.

(approx. 60% power)

Power 5(P-50)   18 sec.    

14 sec.

(approx. 50% power)

Power 4(P-40)   16 sec.    

16 sec.

(approx. 40% power)

Power 3(P-30)   12 sec.    

20 sec.

(approx. 30% power)

Power 2(P-20)   8 sec.    

24 sec.

(approx. 20% power)

Power 1(P-10)   6 sec.    

26 sec.

(approx. 10% power)

Power 0(P-0)  

0 sec.    

32 sec.

(0% power)

2. Heat Potatoes. Moisture and humidity is  

  emitted very rapidly. You can smell the  

  aroma as it cooks.

3.Sensor detects moisture and humidity and 

calculates cooking time and variable power.

Note: The ON/OFF time ratio does not   

correspond with the percentage of  

microwave power, because approxi- 

mately . 2 seconds are needed for  

heating of the magnetron filament.