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3-3
SECTION 3
OPERATION
IV. QUICK REFERENCE: DIGITAL TEMPERATURE CONTROLLER
III. QUICK REFERENCE: CALCULATING THE BAKE TIME
Fig. 3-2
Begin timing
Fig. 3-3
End timing
Tandem and Double Tandem ovens display the bake
time in minutes and seconds. Tri Tandem and Quad
Tandem ovens, however, show a DC voltage value that
corresponds to the speed of the conveyor drive motor. To
calculate the bake time in minutes and seconds, perform
the following procedure.
With the conveyor running, place a product at the
entrance end of the conveyor, as shown in Figure 3-
2. Begin timing with a stopwatch.
When the leading edge of the product exits the bake
chamber (as shown in Figure 3-3), end timing.
The time on the stopwatch is the bake time of the
oven. The time can be adjusted as described in Part
II of this chapter (NORMAL OPERATION - STEP-
BY-STEP).
Display
Shows the Set Point
or the Actual Temp
in degrees Fahren-
heit (F) or Celsius
(C).
SP LOCK Light
Lights when the set
point is locked out
from changes. This
setting can only be
changed by service
personnel.
OVERTEMP Light
Lights when the
oven temperature is
greater than 650°F
(343°C). Refer to
the Troubleshooting
section.
Temperature Key
Press this key once
to view the Actual
Temp in the Display.
Unlock Key
Press this key to-
gether with the Set
Point Key to allow
the Set Point to be
changed. Changes
can only be made for
60 seconds.
Up Arrow and Down Arrow
Keys
Press these keys to adjust the
Set Point up or down. If the Set
Point will not change, refer to
Set Point Key and Unlock Key
in this section.
Set Point Key
Press this key to-
gether with the Un-
lock Key to allow the
Set Point to be
changed. Changes
can only be made for
60 seconds.
Service Key
For use by service
personnel only.
ACTUAL TEMP Light
Lights when the Ac-
tual Temp is shown
in the display.
SET POINT Light
Lights when the set
point is shown in the
display.
HEAT ON Light
Lights when the
burner is in opera-
tion. Note that this
light cycles on and
off during normal
operation.