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five times doubling the thickness with each fold. After the fifth fold, place the thermocouple tip in the center of the
aluminum piece and fold once more. Finally, fold in the sides so that the foil clings to the thermocouple tip.
A mercury thermometer can be weighted in much the same way by wrapping several layers of aluminum foil around
the bulb end thus creating the necessary mass. This procedure is a must if you open an oven door to check
temperature.
THERMOSTAT OPERATION
It is normal for a hydraulic thermostat cycling with a temperature swing of 45° to 50°. When checking calibration first;
allow the thermostat to cycle a minimum of four (4) times, second; place your temperature sensor in the geometric
center of the empty oven. Once the oven has been allowed to preheat record the temperature at which the burners
cycle "ON and OFF". Average the two readings, that average should be +-20° of the set point temperatu re.
Example: Thermostat set point at 300°, first cycl e Off at 325°. Cycle back ON at 291°. The average of 325° and
291° is 308°. This thermostat is with the +-20° to lerance. If the thermostat is cycling beyond the 20° tolerance and the
appliance is under warranty recalibrate the thermostat or if not under warranty consult owner for proper action. If
the thermostat is out of calibration more than fifty 50°, it will not likely hold an attempt of recalibration, we suggest that
the thermostat be replaced.
"B" Dial Shaft
"A" Calibration Screw Head
1/4" Turn
Increase
Decrease
- CALIBRATION NOTES -