
LS 6000 Scintillation System User’s Manual
PN 247971-F
3-7
Counting Samples
Conducting Count Single Rack
3
1. With the Main Menu displayed, highlight “Count Single Rack” and press SELECT. The
Count Single Rack Menu shown in Figure 3.3 is displayed.
2. Highlight “Select User Program” and press SELECT. The User Program Selection Menu
shown in Figure 3.5 is displayed.
3. Select the desired User Program. A summary of the counting time and isotope settings is
displayed. A typical example is illustrated in Figure 3.6.
To change the counting time, highlight “Counting Time”, and enter the desired counting time
(0.01 to 999.99 minutes).
NOTE The counting time is not permanently stored; following the count of the one rack, the counting time is
reset to the previously stored value.
4. Highlight “Count With Program of User”, and press SELECT. The Main Editing Window
prompts you to load your Sample Rack containing the vials you wish to count. Load the
rack into the right side of the sample changer so it is the first rack counted, and press
START.
If the User Program selected is setup for single photon monitoring, the Main Editing Window
displays instructions to start elapsed time before starting the sample count. Press START
when you initiate the sample reaction to obtain elapsed time from the start of the reaction.
Figure 3.6 Summary Of User Program in Count Single Rack
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