GE JK3800DH1BB Technical Service Manual page 33

The following chart shows the predicted
compensation times based on a 12 minute
Speedcook selection (such as Biscuits, Refr; Large).
Voltage Compensation Chart
Time
Voltage Change
(± 20 Sec)
108 +180
110 +150
112 +120
114 +90
116 +60
118 +30
120 0
NOTE: Voltage compensation ± 20 seconds.
Voltage compensation occurs after approximately 5
seconds of cooking operation. The display will show
display the new adjusted time, based on the amount
of voltage compensation required.
Voltage compensation only occurs during
Speedcook operation and only occurs once during
the cooking cycle (at initial start of Speedcook
operation).
Thermal Protection
Thermal protection is a safety feature built into
the Advantium's® software. In the event that the
internal oven temperature reaches 500°F, the
thermistor will communicate this information to the
main PCB and thermal protection will be initiated.
While in thermal protection mode, cooking cycles
will be maintained; however, heaters will not be
utilized until the oven reaches the proper operating
temperature.
Thermal Compensation
NOTE: Thermal compensation only occurs when
using a preselect menu item in Speedcook. These
items require compensation for accurate and
consistent cooking results.
When cooking several food items consecutively, the
temperature in the oven may become very high.
When Speedcooking, the Advantium® automatically
compensates for the increased temperature by
reducing the amount of time the upper and lower
heaters are on during each 32 second duty cycle.
Time
Voltage Change
(± 20 Sec)
122 -21
124 -42
126 -63
128 -84
130 -105
132 -126
– 33 –
At the start of each new Speedcooking operation,
the cavity thermistor reads the oven temperature
and sends this information to the main PCB board.
If the oven temperature is 150°F or higher, the
main PCB board will initiate thermal compensation.
Thermal compensation will reduce the amount of
time the heaters are on in each 32 second duty
cycle. The reduction in heater time is based on the
oven temperature at the start of Speedcook. The
higher the initial cavity temperature, the less time
the heaters will be on per duty cycle.
Thermal compensation occurs only once, at the
beginning of a Speedcook cycle. In the following
the initial cavity temperature, the second and third
columns list the number of minutes and seconds the
unit will have thermal compensation active.
Thermal Compensation Chart
Initial Comp Comp
Cavity Time Time
Temp Min Sec
150°F 2 7
175°F 2 33
200°F 3 0
225°F 3 27
250°F 3 53
275°F 4 20
300°F 4 47
Speedcook Power Level Chart
Upper
Upper Lower
Heater
Power Power
On
Level Level
Time
Hi 100%
Hi
Lo 100%
Hi 100%
Med Hi
Lo 100%
Hi 90%
Med
Lo 90%
Hi 80%
Med
Lo
Lo 70%
Hi 60%
Lo
Lo 30%
Initial Comp Comp
Cavity Time Time
Temp Min Sec
325°F 5 13
350°F 5 40
375°F 6 7
400°F 6 33
425°F 7 0
450°F 7 27
Lower
Heater Microwave
On On Time
Time
100% 0%
80% 0%
70% 0%
65% 0%
90% 10%
65% 10%
70% 20%
70% 30%
60% 40%
30% 70%