931040P / 1014 7. TROUBLESHOOTING
77
the on/off button to restart the computer. When restart is completed, the
DetectiveEX
program will automatically start and the unit will be ready for use.
For further assistance, contact your ORTEC representative or our Global Service Center.
7.7. If You Forgot the Password
There is no master password. Contact your ORTEC representative or our Global Service Center
for assistance.
7.8. Calibration Issues
7.8.1. Calibration Takes Very Long to Complete or Does Not Finish at All
! Make sure your calibration source corresponds to the source selected on the Calibration
screen; see step 1 in Fig. 42.
! If the amount of time remaining (see Fig. 43) is lengthy, use a higher-activity calibration
source or position the source on the detector endcap.
! If the calibration routine does not complete (continues running beyond one minute), tap
STOP to abort it, correct the situation, and restart the calibration.
7.8.2. The Centroid, FWHM, or Calibration Adjustment Value Has Changed
Dramatically Since the Last Calibration
This is a highly unlikely occurrence. The instrument is an advanced digital design and highly
stable when operating correctly.
! If the energy calibration appears highly variable, contact our Global Service Center or
your ORTEC representative. Routine changes of the order of 0.05% are to be expected.
This might simply be due to counting statistics in the spectrum. A change much larger
than this, say 0.5%, bears investigation. Apparent changes in the reported FWHM cali-
bration are most likely to be statistical variations. If the (gain) calibration adjustment
value is stable, the unit is functioning properly.
! If large changes in the calibration continue to occur, contact our Global Service Center or
your ORTEC representative.
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