Trident User Guide
Chapter 4: The User Interface
Page 32 MAN-02098 Revision 008
4.8 How to Do the Gain Calibration
Do the Gain Calibration monthly and when artifacts are seen.
Note
When the system shows the Gain Calibration message, do
the procedure before you shut down the system. If you do
the Gain Calibration at a different time, access the procedure
through the Admin screen. (From the User Name menu in
the Taskbar, select Admin, then select the Gain Calibration
button.)
1. Select Yes to do the calibration now. If you select No, the system shows the Startup
screen.
2. If you select to do the calibration now, you are prompted to select the Gain
Calibration mode (Automatic, Automatic with Shutdown, or Manual).
3. Select the Gain Calibration mode.
4. When the message to insert the Specimen Stage appears, slide a Specimen Stage into
one of the Magnification slots (see Shielded Cabinet Components on page 11).
5. Make sure that there are no other items in the Cabinet, then close the Cabinet door.
6. Images are taken in the following manner:
• Automatic Gain Calibration: The system takes six images and does the Gain
Calibration automatically, then logs out the user.
• Automatic with Shutdown Gain Calibration: The system takes six images and does
the Gain Calibration automatically, then shuts down the system.
• Manual Gain Calibration:
a. Press the X-RAY button.
b. Wait for the system to return to the Ready state, then press the X-RAY button.
c. Repeat step 2 until you acquire six images.
7. When the Gain Calibration is finished, a message about successful completion
appears.
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