Chapter 3 – Operation
Page 3-2 TestEquity FS Series Ovens
Operating the Oven
Assure that the electrical power source is properly configured and rated for the oven and plug the
unit cord into the receptacle.
Turning the Oven On
Push the POWER switch to the I (ON) position. Push the timer switch to the O (OFF) position.
The digital temperature display will indicate a temperature value. Turn the OVERTEMP
PROTECTION Thermostat to its maximum clockwise position using a coin or flat head
screwdriver.
Setting the Temperature Controller
To enter the desired set point temperature, press either the UP or DOWN arrow pad once on the
TEMPERATURE digital display. The display will start to blink from bright to dim. While
blinking, the display is showing the temperature set point. You can change the set point by
pushing the UP or DOWN arrow pads to raise or lower the value. If the arrow pads are not
pushed within five (5) seconds, the display will stop blinking and return to read the chamber
temperature. Allow several hours for the temperature to stabilize.
Setting the Overtemp Protection Thermostat
The OVERTEMP PROTECTION should be initially set to its maximum position when
stabilizing the set point temperature. Once the oven is stable at the desired set point, turn the
OVERTEMP PROTECTION counterclockwise (using a coin or flat-head screwdriver) until the
OVERTEMPERATURE light comes on. Next, turn the OVERTEMP PROTECTION clockwise
just until the OVERTEMPERATURE light goes off. Next, turn the OVERTEMP PROTECTION
two (2) minor increments on its scale past the point where the light went out. This sets the
OVERTEMP PROTECTION at approximately 10°C above the current temperature set point.
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