8 S
EGMENT
P
ROGRAMMABLE
M
ODEL W
/OTP
20
Buttons and Indicators
OP1 (Output 1):
illuminates when the heating output of
the temperature controller is on.
AUTO/MAN: (Auto/Manual Mode):
when the controller is
in the automatic mode the output automatically adjusts to
keep the temperature or process value at the setpoint.
The “AUTO” light will illuminate. The manual mode has
been disabled through factory configuration. Call
Customer Service for further information.
RUN/HOLD (Run/Hold button):
• Starts a program when pressed once—RUN light
illuminates.
• Holds a program when pressed again—HOLD light
illuminates.
• Cancels hold and continues running when pressed
again
—HOLD light is off and RUN light illuminates.
• Exits a program when the button is held down for two
seconds
—RUN and HOLD lights are off.
• At the end of a program the RUN light will flash.
• During holdback the HOLD light will flash.
PAGE button:
allows you to choose a parameter from a
list of parameters.
SCROLL button:
allows you to choose a parameter with-
in a list of parameters.
UP button:
allows you to increase the value in the lower
display.
DOWN button:
allows you to decrease the value in the
lower display.
