Specifications
point either above or below the process value indicated
on the upper display.
(If you will be using the controller as
a single Set point Controller, set the furnace’s set point to
the temperature you intend to use for your application. If
you will be running a multi-step program, set the furnace’s
set point to the value of PL1 (Program Level #1).)
At the
end of the minute, the “SP” indicator will stop flashing,
indicating that the set point can no longer be changed.
The A-T indicator will start flashing and continue to flash
until the self tune has completed. Once the self tune is
completed, adaptive tune takes over and the A-T indicator
will remain illuminated.
To stop tuning, function scroll until SAT is displayed and
simultaneously push up and down buttons.
Operating the Controller
Single Set Point Operation
This programmable control can be used as a single set
point control or as a programmable control. To use as a
single set point control, simply push up or down buttons
to choose a specific temperature. Temperature set point
or output power is indicated on lower display; single de-
pression of scroll button will alternate between these two
parameters. The control will cause the furnace chamber
to heat to the chosen temperature and hold it at this tem-
perature until you turn off the power switch or select
another temperature.
1. The set point temperature presently set in the control
will be read out on the lower display.
2. To change this set point, depress the “UP” or
“DOWN” push button until the desired set point value
is displayed then release the button.
3. At this point the furnace will begin to heat if the new
set point temperature you have chosen is higher than
the present chamber temperature.
4. The upper display indicates the actual furnace tem-
perature.
28
MULTI-PROGRAMMABLE MODELS
Caution
Do not exceed limitations for continu-
ous or intermittent operating tempera-
ture shown in the General
Specifications section. Exceeding
these limits will result in severely
reduced heating element life.