LB 134
Content
III
7.8
Activity Probe for Solid Samples LB 1238 .................................................... 99
7.9
Tritium Surface Contamination Monitor ...................................................... 101
7.9.1
Device Configuration ................................................................................... 101
7.9.2
Application ................................................................................................... 102
7.9.3
Probe Assembly .......................................................................................... 102
7.9.4
Counting Gas Supply .................................................................................. 103
7.9.5
Tritium Probe with Trolley ........................................................................... 105
7.9.6
Commissioning of Tritium Probe ................................................................. 106
7.9.7
Practical Hints for Operation and Measurement ......................................... 109
7.9.8
Performance Check .................................................................................... 109
7.9.9
Efficiency and Detection Limits ................................................................... 110
7.9.10
Working with the
β-γ-Probe ......................................................................... 112
8.
MAINTENANCE .......................................................................................... 114
8.1
Battery Replacement ................................................................................... 114
8.2
Charging Rechargeable Batteries ............................................................... 115
9.
BASIS OF CALCULATION ........................................................................ 116
9.1
Calculating the Count Rate ......................................................................... 116
9.2
Ratemeter Function ..................................................................................... 117
9.3
Search Mode ............................................................................................... 118
9.4
Counter/Timer Function .............................................................................. 119
9.5
Determination of Calibration Factors in the Event of Contamination .......... 120
10.
DECISION THRESHOLDS AND DETECTION LIMITS ............................. 123
11.
APPENDIX .................................................................................................. 124
11.1
Calibration Factors for LB 1342 Scint-Contamination Probe (170 cm²) ..... 124
11.2
Calibration Factors for LB 1231 and LB 1233 ............................................. 128
11.3
Calibration Factors for LB 1341 (Xenon detector) ...................................... 129
11.4
Calibration Factors for LB 1343, Scintillation Detector (345 cm²) ............... 131
11.5
F²C Communication Protocol and Commands ........................................... 133
11.5.1
Status Definition in LB 134 .......................................................................... 133
11.5.2
Transmission Protocol ................................................................................. 135
11.5.3
Command Overview .................................................................................... 136
11.6
Parameter Locking with Jumper J3 ............................................................. 142
11.7
Pin Assignment of the Fischer Sockets ...................................................... 142
11.8
Example of RS485 Network with Multiple LB 134 as Dose Rate Monitor .. 144
12.
TECHNICAL DATA LB 134 UMO II ........................................................... 145
13.
INDEX ......................................................................................................... 146
Summary of Contents for LB 134
Page 2: ......
Page 6: ...LB 134 Content IV...
Page 8: ...LB 134 Working with the User s Manual VI...
Page 10: ...LB 134 Safety Instructions VIII...
Page 34: ...LB 134 2 System Description 24 Figure 2 9 LB 134 with wall bracket...
