neoprobe
TM
GDS Operation Manual
AW-000639
Page
9 of 38
Count Range
Default Background Count
1,000
20
10,000
200
50,000
1000
Operational Notes
Events that may occur during product use:
If……
Then this occurs……
Background Count is greater than or equal to 80% of
maximum value of selected Count Range
Example: 800 is displayed for 1,000 Count Range
Background Count is less than or equal to 2% of
maximum value of selected Count Range
Example: 20 is displayed for 1,000 Count Range
Background Count button [14] is pressed during
background count
Ratio is not calculated during Target Count. A Start
Beep sounds and Background Count restarts
Background Count button 14] is pressed while
Background Count value is displayed
A new Background Count starts
Scanning to Locate Concentrated Areas of Radioactivity
Physician scans target areas to locate radioactivity after setting Background Count and Dynamic Pitch Ranges.
System status
Target Count Readout [7] displays Count Rate value; Count Bar [6] is on and displays Count Rate activity. Audible
signal may be heard, depending on Count Rate, Dynamic Pitch Range selection, and Volume settings.
Scanning procedure
Physician slowly scans by moving probe over target tissue at a rate of 1-2 centimeters per second (cm/s). Sound rises
in pitch as Count Rate increases from Background Count Value to Dynamic Pitch maximum value.
SCAN OVER TARGET AREA
NOTE
: Count is too high to be displayed when Count Bar [6] fills to top and flashes with varying audio. To correct,
press and release Dynamic Pitch Range Button [18] for next higher Dynamic Count Range, and perform a new
Background Count if necessary. Optionally, press, hold and then release any Dynamic Range button (18) to activate
“Autorange Function”, see autorange instructions below.
Acquiring Target Count in Dynamic Pitch Mode
Acquire Target Count to identify intensity of gamma radiation in surrounding area.
Artwork No: AW-000639 Revision: A Artwork Status: Released Lifecycle Name: Artwork
PCO No: N/A ECN No: ECN-000214 Release Date: 10/09/2012 Effective Date: 10/09/2012
