- 36 -
System calibration is accomplished by making four measure-
ments on each channel (amp zero, zero, positive and negative
full scale). Once the measurements are made and the data vali-
dated, calibration values for amplifier zero and software gain
are stored in the internal flash memory. Readings are validated
by comparing the measured values with tolerances which are
hard coded within the firmware. If the readings fall outside the
established tolerances, the system will reject the calibration.
Once this menu item is chosen, the following screen is dis-
played:
SYSTEM CALIBRATION
Install calibrator
On channel 1 now
CAL = Calibrate
MENU = Exit
Press the
key to begin the calibration process. To cancel
the calibration operation, press the
MENU
key.
NOTE: Once the calibration process is initiated, it must be
completed in full; otherwise, the system will lose its calibration
information.
SYSTEM CALIBRATION
Set calibrator to
0 microstrain
CAL = Calibrate
