Shellab SHO1-2 - Manual (Page 12)

Operation
12
To calibrate the oven
Calibrate the oven:
• After first installation in a working environment.
• After each 3 months of use
To calibrate the oven:
1. Install the rotator and load it with a typical number of chambers.
2. Turn on the oven and set to a typical operating temperature.
3. Allow the oven to stabilize for at least 1 hour.
4. Place a certified reference thermometer in the chamber near the sample area.
5. Allow the temperature to stabilize again until the thermometer reads a constant
value for one hour.
6. Compare the digital display on the control panel with the reference thermometer.
7. If there is a difference of more than 0.2 °C, put the display into calibration mode
by pressing both and at the same time until the temperature display’s
two outside decimal points begin to flash.
8. While the decimal points are flashing, press the or arrow pad until the
display reads the correct value.
Allow the oven to stabilize, and then recheck the temperature. Repeat step 5
through step 8, if necessary.
Sheldon highly recommends recalibrating the oven temperature every three (3) months.
To ensure correctness of temperature calibration, the rotator needs to be installed and
loaded.
Sheldon recommends using a digital thermometer for calibration.