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diagnostic alarms that may occur during a firing. To silence an active buzzer, Press any
button.
Temperature display preference
All temperature displays on the controller can be viewed as
F (Fahrenheit) or
C
(Celsius). The temperature display preference is set by positioning a small circuit board
jumper on the back side of the controller that is labeled C/F. The C/F jumper has 2 pin
positions, when installed on the 2 corresponding circuit board pins the controller will
display all temperatures as
F(Fahrenheit). When no jumper is installed on the 2 circuit
board pins the controller will display all temperatures as
C (Celsius). To determine if
your controller is set for
F or
C without viewing the jumper position, the small decimal
point light in the bottom right-hand corner of the display panel indicates
F or
C. If this
decimal point light is lit, the controller is set for
C.
The C/F jumper position is shown on the wiring diagram included in this manual (page
29).
Temperature Measurement
The controller monitors and controls temperature from a single Type K thermocouple
sensor. The thermocouple probe extends into the firing chamber to measure the
temperature. Use caution to avoid damage to the system thermocouple. If the probe is
damaged, the controller may not function properly.
Temperature Control
The controller heats the firing chamber by turning relays on and off at the appropriate
rate to maintain the program schedule. It is normal to hear the clicking noises associated
with turning relays on and off throughout the firing.
Firing Program Terminology
As we begin our discussion on programming your kiln, it may be handy to first discuss
basic fusing terminology and fusing techniques.
All modern electronic kiln controllers require three pieces of information for each heating
or cooling step (commonly called a ”segment”) of a firing schedule. These variables are:
Heating or cooling rate (speed, commonly referred to as Ramp Rate)
Heating or cooling temperature (Target, or Set Point Temperature)
Time Spent at a specific heating or cooling temperature (Hold or Soak Time)
The following graphical representation of
a “typical” firing schedule may help you
visualize exactly what your kiln does. A complete firing schedule can be multiple heating
and/or cooling steps or segments. However, for many applications a single step is all
that is required. The maximum number of program segments in the EZ-Pro controller is
limited to 8.
