Chapter 4 – Maintenance
TestEquity FS Series Ovens Page 4-1
Chapter 4 – Maintenance
2 WARNING: Disconnect the power cord from the power source before performing any
service or maintenance on this unit.
No maintenance is required on the electrical components. If the unit fails to operate as specified,
please see the Troubleshooting Guide, before calling for service.
Cleaning
Cleaning and decontamination are recommended on a regular basis. To prepare the unit for
cleaning, remove all interior parts if assembled, such as shelves and shelf clips.
First, clean the oven interior with soap and water, rinse and let dry. To decontaminate use a
solution that is appropriate for your application. DO NOT USE chlorine-based bleaches or
abrasives as this can damage the stainless steel components. DO NOT USE spray cleaners that
might leak through openings and cracks and get on electrical parts or that may contain solvents
that will harm the coatings. Use care when cleaning the door gasket to prevent damage which
could impair the positive door seal.
! WARNING: Never clean the unit with alcohol or flammable cleaners with the unit
connected to the electrical supply. Always disconnect the unit form the
electrical service when cleaning and assure all volatile or flammable cleaners
are evaporated and dry before reattaching the unit to the power supply.
Storage
To prepare the unit for storage, remove all shelves and shelf clips and disconnect the power
supply. Be certain that the chamber is completely dry and door is positively secured in the closed
position. See Lifting / Handling for proper transport procedures.
Calibration
Controller Accuracy is ±1°C at the calibrated single set point using the procedure below.
It is recommended that calibration is verified with the unit is installed in its working
environment, and has been stable at set point for several hours. Place a reference temperature
measurement device in the oven. Be certain the sensor does not touch any shelving. Allow again
for the temperature to stabilize until five (5) consecutive readings at one minute intervals show
no temperature change. Compare the reading on the reference thermometer with the front panel
digital display. If there is an unacceptable difference, put the display in calibrate mode by
pressing the UP and DOWN arrow pads at the same time until the decimal points blink on and
off. While blinking, the display can be changed to match the reference thermometer by pushing
the UP or DOWN arrow pads to raise or lower the temperature until the display reads the correct
value. If no arrow pads are pressed within five (5) seconds the display will revert to displaying
the temperature within the chamber.
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