Motorola LS6000B-U Betriebsanweisung Seite 69
- Seite / 180
- Inhaltsverzeichnis
- LESEZEICHEN
Bewertet. / 5. Basierend auf Kundenbewertungen
LS 6000 Scintillation System User’s Manual
PN 247971-F
4-11
Setting Up User Programs
Editing A User Program
4
Counting Precision
Counting to a preset counting precision is used so all results have the same precision,
eliminating one source of variation in the experiment. The value entered for counting
precision establishes the 95% confidence level for the count (the 2 sigma statistical value). A
value of 2.00% indicates that in 95 out of 100 cases, the counts per minute obtained are
within 2% of the mean, and in the remaining 5 cases may be outside that 2%. This results
from the randomness of the radioactive decay process, and not from any variation within the
instrument.
The relationship between counting precision/total counts is:
When sufficient counts have been accumulated to yield the counting precision specified,
counting of that sample is terminated even if the specified counting time has not been
satisfied. For dual and triple label, the counting precision must be reached for all isotopes
selected before the count is terminated. If the counting time is reached before obtaining the
specified counting precision, counting is terminated. The printout shows the value of
counting precision achieved.
To change the setting, highlight “Counting Precision” and press SELECT. The Main Editing
Window presents prompts to enter the counting precision for each isotope selected. Enter the
desired counting precision for each isotope. A counting precision of “0” results in counting to
the count time entered. Press PREVIOUS MENU to return to the Review/Edit Menu shown in
Figure 4.4.
Background/Blank Subtraction
Two methods are available for subtracting values from the unknown samples being counted;
background subtraction or counting blanks. A separate background and/or blank value may
be subtracted for each isotope.
A background is a value obtained from a count performed in advance. For correct results, the
background must be counted with the same User Program used to count the samples. Since
the background is counted separately, it can be counted for a long time to obtain an accurate
value. The background cpm and the background counting precision are then entered
manually into the User Program. These values are used to accurately correct each sample
value, including the blanks, for contributions from background.
Counting Precision,% Total Counts
20 100
15 177
10 400
51,600
2 10,000
1 40,000
0.5 160,000
0.2 1,000,000
- 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
Verwandte Produkte und Handbücher für Barcodeleser Motorola LS6000B-U
Barcodeleser Motorola SYMBOL MS320X Spezifikationen
(428 Seiten)
(428 Seiten)
Barcodeleser Motorola SB1 Betriebsanweisung
(82 Seiten)
(82 Seiten)
Barcodeleser Motorola MC17T Bedienungsanleitung
(24 Seiten)
(24 Seiten)
(32 Seiten)
Barcodeleser Motorola MP6000 Spezifikationen
(200 Seiten)
(200 Seiten)
Barcodeleser Motorola DS9208-1D Spezifikationen
(380 Seiten)
(380 Seiten)
Barcodeleser Motorola SYMBOL LS7708 Spezifikationen
(380 Seiten)
(380 Seiten)
Barcodeleser Motorola WT4090 Spezifikationen
(206 Seiten)
(206 Seiten)
(2 Seiten)
Barcodeleser Motorola LS1000B Spezifikationen
(96 Seiten)
(96 Seiten)
© 2020, manymanuals.de. Alle Rechte vorbehalten. | 0.045 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern