931040P / 1014
5. ADVANCED SETUP
51
Figure 44. Apply The Calibration.
Figure 45. Run A New
Background.
5.1.3.3. Perform a Background Measurement
If you accept the improved calibration, the manual calibration routine deletes the existing back-
ground file. Therefore, the final step of the calibration process is to re-measure the background,
as indicated in Fig. 45. Remove the calibration source, tap the Run a Background button, then
refer to the instructions in Section 5.1.4.
NOTE
When the previous background is no longer valid, the
Background Invalid
message is
displayed on the Survey Mode screen. The Identify and Monitor buttons become inac-
tive and the system will not post radionuclide IDs. However, the gamma and neutron
count rate meters on the Survey, Search, and SNM Mode screens continue to function
normally.
Tap Back to return to the Advanced Setup dialog.
5.1.3.4. Restore Default
If you have changed the calibration now or at any time in the past, you can restore the factory
calibration settings by tapping on the Restore Default button. The factory values are always
available. Note that this feature is typically used for troubleshooting purposes. The current back-
ground file is destroyed, so you must run a new background before the Identify and Monitor
Modes will function..
Summary of Contents for Detective-DX-100T
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