OHAUS MB120 Service Manual page 71

APPENDIX A STANDARD CALIBRATION
Press Exit to return to Home screen.
Press Temperature calibration button.
You are now prompted to remove the pan support. Place a temperature calibration unit and close the
upper housing.
Press the Start to initiate the temperature calibration process. Follow the screen prompts throughout
the process.
The dryer unit is heated to a temperature of 100°C. You can observe the progress on the
display as the dryer temperature and count down period are displayed. After 15 minutes, read
the thermometer through the inspection window on the cover and enter this temperature. Adjust
the display reading to agree with the thermometer, and then press the Enter button. You have
15 minutes to make this adjustment, otherwise the calibration is terminated.
MB90 MB120 Series Service Manual 65 Ohaus Corporation www.ohaus.com