Specifications

and remove screws from bottom.
2. Open unit. Locate the logic board. (See
illustration of the interior of unit or the
exploded view.) Move the jumper posi-
tion J3 to position J5. For series 732
units, you must remove jumper J4 if it
exists.
3. Replace the bottom of the unit and turn
the unit over.
4. Calculate the necessary correction for
the probe using the following equation:
Probe Error = (displayed temperature) -
(actual temperature measured by other
source)
Correction = 350 - Probe Error (if the
error is negative, the correction is >350)
5. Turn the unit on. The display will show
“888” and then “000.” The HOT,
PROBE, SET and TOP LED’s will be on.
Push the heat knob once. The digit on
the far right side will get brighter.
6. Turn the heat knob clockwise until the
display shows the correction calculated
above. Push the heat knob again. The
SET, TOP, and PROBE LED’s will go
out. The correction will remain on the
display.
7. Unplug unit, turn unit upside down and
remove screws from bottom. Move
jumper J5 to J3. For series 732 units,
replace jumper J4 if necessary.
34
MAINTENANCE AND SERVICING
Note
The Maximum error is ±10.
Thus the correction must be
between 340 and 360.