19
8 Segment Programmable w/OTP
Models FD1540M, FD1540MCN, FD1540M-
33, FD1545M
Note
The controller will return to the HOME
DISPLAY if left idle for more than a
few seconds.
Note
Once the desired parameter has been
selected, depressing either the UP or
DOWN button will change the
parameter value. In all cases, the
value shown on the display is the
current working value of that
parameter.
The
8 segment programmable
controller consists of a
microprocessor based three-mode PID (Proportional,
Integral, and Derivative), programmable temperature
controller with over-temperature protection and
appropriate output switching devices to control the
furnace. The dig- ital readout continuously displays
chamber (upper display) and setpoint (lower display)
temperatures unless the SCROLL or PAGE button is
depressed. The programmable controller can be used
as a single setpoint controller or as a programmable
controller. The 8 segment digital model enables eight
segments of programming.
Basic Operation
When the controller is turned ON, it will perform a short
self-test and then change to the HOME DISPLAY. The
HOME DISPLAY shows the measured temperature
(process value) in the upper display and the desired
AUTO/MAN
Button
Output 1
Display
Window
Upper
Display
Actual
Temp.
value (setpoint) in the lower display.
To Change the Setpoint
If you want to change the setpoint, press the UP or
DOWN button until the desired setpoint value is
displayed in the lower display and then release the
button.
PAGE
Button
SCROLL
Button
Lower
Display
Setpoint
Temp.
RUN/HOLD
Button
UP ARROW
Button
DOWN ARROW
Button
To View Display Units
From the HOME DISPLAY press the SCROLL button.
The display will briefly show the temperature units in
°C/F/K and then return to the HOME DISPLAY. (If you
require a different temperature unit call Customer
Service)
To View the % Output Power
From the HOME DISPLAY press the SCROLL button
twice. Press the UP or DOWN button to display the
value. This value is a read-only value and cannot be
changed.
