SIGMA AM-255 User Manual

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APPENDIX .................................................................................................................................. 19

A. WARRANTY .......................................................................................................................... 19

B. GLOSSARY ............................................................................................................................ 20

C. FORMULAS ........................................................................................................................... 22

C.1. ACTIVITY FROM COUNTS .................................................................................. 22

C.2. EFFICIENCY ........................................................................................................... 22

C.3. N*SIGMA ALARM LEVEL ................................................................................... 22

C.4. RELIABLE DETECTABLE ACTIVITY (RDA) FORMULA................................ 23

C.5. SIGNAL TO BACKGROUND RATIO................................................................... 23

C.6. VARIANCE.............................................................................................................. 24

D. CONFIGURATION TRACKING SHEET.......................................................................... 25

E. PARTS ..................................................................................................................................... 26

E.1. RECOMMENDED SPARE PARTS ........................................................................ 26

E.2. SPARE PARTS ORDERING INFORMATION...................................................... 26

F. DRAWINGS ............................................................................................................................ 27