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LS 6000 Scintillation System User’s Manual
PN 247971-F
2-17
Getting Started
System Setup
2
Date/Time
The current date and time is set at time of installation. To change either the date or the time,
highlight “Date/Time” and press SELECT. The Main Editing Window displays two items:
Time and Date.
Time
The time is set on a 24 hour clock and entered as hour and minutes, or hour, minutes, and
seconds. To change the settings, highlight ‘Time” and enter the new time. The clock is
updated when MAIN MENU or PREVIOUS MENU is pressed.
Date
The date is set in this format: DD MMM YYYY (2 digits for the day, a 3 letter code for month,
and 4 digits for the year). To change the settings, highlight “Date” and enter the new date.
Auto DPM
Auto DPM is an operating mode that is accessed with the Command Card, AUTO DPM, or as
a Data Calculation program in a User Program. When a Command Card is used to access this
counting mode, the system parameters are fixed except for count time and counting
precision. These parameters are stored as System Parameters. For more information on Auto
DPM, refer to Section 3.4 and Section 5.4.
Auto DPM Calibration is performed at the factory. The
14
C and
3
H unquenched standards are
used for Auto DPM Calibration and the standard dpm and standardization date for both
isotopes are stored in Auto DPM. Check these parameters at the time of installation to make
sure the stored dpm and standardization date agree with those printed on the label of the
standards supplied with the instrument. For more information on Auto DPM Calibration,
refer to Section 3 Auto DPM Calibration.
To change the Auto DPM parameters, highlight “Auto DPM” and press SELECT. The Main
Editing Window displays two prompts: AUTO DPM Rack Setup and AUTO DPM Calibration
Setup. Each prompt is described below.
Auto DPM Rack Setup
This prompt is used to change the count time and counting precision for Auto DPM initiated
from the Command Card. Whichever condition is satisfied first, terminates the count.
To change these parameters, highlight “AUTO DPM Rack Setup” and press SELECT. The
Main Editing Window displays two prompts: Count Time and Counting Precision. Highlight
each prompt and enter the desired values. Press PREVIOUS MENU to change Auto DPM
Calibration.
Auto DPM Calibration Setup
This prompt is used to change the standard dpm and standardization date for both
3
H and
14
C
unquenched standards. This information is printed by the manufacturer on the label of the
standards.
- LS 6000 Series 1
- Table of Contents 3
- Introduction 11
- Principles of Operation 12
- Operating the Instrument 12
- Operating Modes 13
- 1.3 Specifications 14
- Precautions and Limitations 15
- Figure 1.1 Standard Vial 15
- Miniature Vials 16
- 1.5 Hazards 17
- Maintenance 18
- Getting Started 19
- 2.2 Power Failure 21
- 2.3 Operating Controls 21
- Operator Control Key pad 22
- Using the Operating Controls 24
- 2.4 Using the Racks 25
- Using the Racks 26
- Setting Up the Racks 27
- 2.5 Preparing the Printer 29
- 2.6 System Setup 30
- Energy Scale 31
- Printer Paging 32
- Allow Interrupt Count 32
- System Setup 33
- Figure 2.9 RS232 Setup Menu 33
- Date/Time 35
- Auto DPM 35
- 2.7 Calibration 36
- Counting Samples 39
- Starting the Automatic Count 40
- Conducting Count Single Rack 41
- 3.4 Auto DPM 46
- 3.5 Multi-Task 47
- Interrupt Count in Multi-Task 48
- Multi-Task 50
- Interrupt Data 51
- Setting Up User Programs 59
- 4.2 Editing A User Program 61
- Editing A User Program 62
- Comments 65
- Counting Time 65
- Liquid or Xtal Scintillator 65
- Isotope 1 65
- Isotope 2 and Isotope 3 66
- Edit Other Parameters 67
- Counting Precision 69
- Background/Blank Subtraction 69
- Lum-Ex Correction 71
- Phase Monitor 72
- Low Level 72
- Low Count Reject 72
- Output Formats 72
- Count Data 75
- Raw Data 75
- Collecting Spectral Data 76
- 4.3 Copy User Program 77
- Copy User Program 78
- 5.2 CPM/Xtal CPM 80
- CPM/Xtal CPM 81
- Results for CPM/Xtal CPM 83
- 5.4 Auto DPM 85
- Setting Up Auto DPM 86
- Loading Samples for Auto DPM 86
- Results for Auto DPM 86
- Setting Up DPM 87
- 5.6 Xtal DPM 89
- Xtal DPM 90
- Setting Up Xtal DPM 91
- Loading Samples for Xtal DPM 92
- 5.7 DPM % of Reference 93
- Setting Up DPM % of Reference 94
- Xtal SL DPM % of Reference 95
- 5.9 Single Photon Monitoring 98
- Data Calculation 100
- Single Photon Monitoring 100
- Isotope/DPM Libraries 103
- Accessing the Isotope Library 104
- Printing the Isotope Library 104
- The Isotope Library 105
- Setup Menu 106
- PN 247971-F 108
- 5 minutes 109
- 6.2 Setting Up A Quench Curve 110
- Setting Up A Quench Curve 112
- Counting the Standards 114
- Editing Quench Curves 120
- Deleting A Quench Curve 124
- Manual Entry of Quench Curves 125
- 7.1 Chemiluminescence 127
- Interpretation of Results 128
- Reducing Single Photon Events 128
- 7.3 Two Phase Samples 129
- Procedures 131
- Analysis of Data 131
- H Counting Efficiency 132
- C Counting Efficiency 132
- Background 133
- Contamination 133
- Instrument Specifications 135
- Temperature Control Accessory 138
- Installation Requirements 139
- Electrical Requirements 140
- 0.5 to 1.0 m in 140
- Environment Requirements 142
- . Note that the output 144
- Datum IDs 146
- CHAPTER 1, PART 31 167
- Region I 170
- Region II 170
- Region III 170
- Region IV 170
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