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134 ATOMLAB 500 DOSE CALIBRATOR
6. If you wish to change sources touch <Select Sealed Source>. If you have one to three
sources, touching <Select Sealed Source> toggles between the sources. If more than three
sources are listed, touching <Select Sealed Source> brings up the Sealed Source List.
NOTE: You can select your default sealed source, which will be the first source displayed
when you enter the Constancy screen. Set the default in Sealed Source Set Up. Otherwise,
the first source displayed will be the first source on your Sealed Source List.
7. If the current activity is higher than desired, touch <Zero Background> and zero the
background.
8. Place the selected sealed source into a dipper and then into the detector. Allow the reading to
settle. it is shown in the current activity section of the screen.
9. Touch <Record Reading> to enter the reading. The system takes readings for each isotope
on the Expanded Constancy List. The variance from the decayed calculated standard is
shown and a reading for each Isotope Listed.
10. If you touch <Back>, the message: recorded data will be lost? is displayed. Touch <Yes> to
return to the expanded Daily Constancy Test screen without saving the data. Touch <No> to
return to the expanded Daily Constancy Test screen with the data recorded.
11. Touch <Save Data> to save the Expanded Constancy Data. The Save Expanded
Constancy Data screen is now displayed.
12. If the appropriate staff member is not displayed, touch <Staff Member>. The Staff Member
List is displayed. Touch to highlight any listed person. (If you have previously selected a staff
member, the system will default to that person on the Expanded Constancy Test data
screen.). If necessary, touch <Add Staff Member> or <Delete Staff Member> to update the
Staff Member List. Touch <Enter> to select the staff member and return to the save
Expanded Constancy Data screen.
NOTE: If you have more than eight selected isotopes, the results are shown on two screens.
Touch the arrow on the right side of the screen to see the second page. When you go to page
2, an arrow that allows you to go back one page appears on the left side of the screen.
NOTE: You must have selected a staff member name before saving the test.
13. Touch <Measure> to go to the Measure screen without saving, <View Data> to advance to
the Expanded Constancy Test data screen and view previous tests (see View Constancy Data
section for details). Touch <Save Data> to save the Expanded Constancy Test just per-
formed. The system returns to the Save Expanded Constancy Data screen.
• Touch <Measure>. If you proceed, a message that recorded data will be lost is displayed.
Touch <Yes> to abort and return to the Dose Calibrator screen without saving data, or
<No> to return to the Expanded Constancy Data screen.
• Touch <View Data> to view the data on the Expanded Constancy Test data screen.
• <Save Data> is inactive because the data has already been saved.
• Touch <Back> to return to the Daily Constancy screen just counted. Touch <Back> again
to return to the QA Dose Calibrator screen.
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