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Operation
Note
If no keypad activity occurs within 3
seconds, the display will return to the
temperature display mode.
8
Power on Reset
When power is initially turned on to the furnace, the dis-
play will show "InIt" followed by the current furnace tem-
perature reading. The control display window shows furn-
cace temperature in °C.
Entering a Set Temperature
To enter a temperature setpoint, perform the following
steps:
1.
With the power switch in the ON position, press
the Mode keypad. The display shows the latest
temperature setpoint.
2.
In order to change the temperature setpoint,
press the UP arrow key to increase or the
DOWN arrow key to decrease. Once either key-
pad is pressed the decimal point will illuminate
to indicate a change in setpoint. Hold the
UP/DOWN keypad in until the desired setpoint
is reached.
3.
Press the MODE keypad again or don't press
any keypad for 3 seconds and the setpoint will
update with the setpoint indicated on the display.
Once the desired setpoint is entered, the heater indicator
LED will light and the chamber will begin to heat towards
the setpoint.
Setting the Display Offset
Isotemp Muffle Furnaces permit the user to calibrate the
temperature display and control point to a reference stan-
dard set up to read the interior furnace temperature at
any given point. With a display offset entered, the temper-
ature shown on the display will be actual furnace temper-
ature plus or minus the display offset selected.
To enter a display offset, carry out the following steps:
1.
Place power switch in the OFF position.
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