ProCal-Pro 100
Operating Instructions
Section B — High Fusing Adjustments
Calibration – High Fusing Adjustment
Both the Password = 250 Idle temperature AND the High
and Low Fusing Adjustments always reference back to the
stored Factory Calibration point, not the previously stored
adjustment.
What this means is that when you set the Idle Temperature
in the Password = 250 mode to an Idle temperature of
850ºC the furnace takes the muffle to the temperature
corresponding to the value it saw when it was calibrated
at 850ºC at the factory.
Lets say that the ProCal reads 855ºC when furnace
reads 850, a 5 degree overfire (relative to the last factory
calibration point).
You need to go into the
Special Functions
\ Calibration -
High Fusing Temperature Fusing adjustment and dial
in an offset which will result in User Programs firing
5 degrees lower at 850ºC.
1. You would press
Special Functions
, rotate the knob
to
Calibration–High Fusing
, and press the
Next
button.
Press
Special Functions
Button
Rotate Knob to “Cal – High Fusing”, Press
Next
The
furnace would display “
High Fusing – Overfires?
” on
the top line and
Yes
or
No
on the second line.
If we answer yes, we can input an Overfire value, if we
answer
No
, we're actually saying that the furnace was
Underfiring, not Overfiring.
2. In this example we were Overfiring by 5 degrees, so
we answer
Yes
and press
Next
button.
3. The furnace will now display the last known Overfiring
fusing adjust entry value; it might be 0, it might be 50,
IT DOES NOT MATTER WHAT IT SAYS. THE ONLY
THING THAT IS IMPORTANT IS THE AMOUNT OF
OVERFIRING YOU HAVE RIGHT NOW.
Spin the dial to the desired value of 5 degrees of
Overfire adjustment and press
Next
button. As
soon as you press the
Next
button the CURRENT
fusing offset value is stored to non-volatile memory
(after erasing all previous values, either Overfire or
Underfire).
If you are curious about what was previously stored
you can go into the Fusing Adjust mode, inspect the
stored value and back out without altering the value
by pressing the
Special Functions
button [not the
Next
button].
4. The next time you run a normal firing program with
a hold temperature above 800ºC the furnace will
automatically deduct 5 degrees from the programmed
hold temperature and the actual temperature will be
accurate.
3