8 S
EGMENT
P
ROGRAMMABLE
M
ODEL W
/OTP
24
Note
The following alarm messages are
factory default settings and may vary if
you have changed the configuration of
your controller:
IDHi = 50°C
2FSH = 1025°C
Over-Temperature Protection
(OTP)
The OTP will be in effect during any alarm condition when
the temperature of the furnace has deviated beyond the
limit.
The “Deviation High” alarm is the only alarm value
which can be changed. To change it, press the SCROLL
button
until “idHi” appears on the display. Press the UP or
DOWN button to select the OTP value you desire. We
recommend a value of 20° above your working temperature
to provide protection for your workload.
To Operate the Controller as a
Single Setpoint Controller
1. Switch the circuit breaker to
the “ON” position.
The setpoint temperature presently set in the
controller will appear in the lower display. (The
upper display indicates the actual chamber
temperature.)
2.
To change the setpoint, press the UP or DOWN
button until the desired setpoint value is
displayed; then release the button.
3. The furnace will begin to heat if the new setpoint
temperature is higher than the present chamber
temperature.
Programming the Controller
The controller is capable of varying temperature
or process value with time through programming.
A program is stored as a series of segments and
can be run once, repeated a set number of times
or run continuously. To create a customized
program using the controller parameters listed
under “Controller Parameters” at the beginning of
this section, follow the procedures outlined in the
proceeding sections of this manual.
