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34 ATOMLAB 500 DOSE CALIBRATOR
Large Transition During Initialization
If a large transition is detected during background initialization or during a Zero Background
procedure, the following prompt will appear:
“An Unusually Large Change In Activity Of nn.n pA
Has Been Detected During Background Initialization.
It Is Recommended To Redo The Background Initialization
(takes 100 readings)”
From this screen, the user can choose to <Ignore and Continue> the Zero Background procedure,
or <Redo Background Initialization>. Choosing to continue will return to the screen from which
<Zero Background> was selected (either System Test or Zero Background).
If <Redo Background Initialization> is selected, the unchanged Zero Background count down
Screen will be displayed. Touch <Abort> to abort the Zero Background procedure and return to
the original screen. If the user allows the countdown to complete, the <Abort> button label
changes to <Back>, and the system automatically returns to the original screen.
Select Detector
The <Select Detector> icon allows the user to choose a different detector when more than one
detector is connected to the system. The Atomlab 500 can accommodate up to seven dose
calibrator detectors (or six dose calibrator detectors and one wipe detector).
To Select A New Detector:
Note: If only one detector is connected, the system will not allow the following procedure.
1. Touch <Select Detector> to scroll through detectors 1, 2 and 3. Each time you touch <Select
Detector> the system selects the next detector. Press <Cancel> to return to the Home screen.
2. If you have four or more detectors, touch <Select Detector> again. A list of all the present
detectors with detector number, type of detector and location is displayed. The last detector
used is highlighted.
3. Touch to highlight any detector displayed, or touch <More Detectors> to view additional
detectors on the list. Use <More Detectors> to continue scrolling through the detectors list if
necessary. Touch <Previous Detectors> to return to the previous detector list.
4. Touch <Enter> to select the new detector and return to the Home screen, or press <Cancel> to
return to the Home screen without selecting a new detector.
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