Table Of Contents - Fluke 481-DESI Operator's Manual

Introduction........................................................................................................ 1
How to Contact Fluke ........................................................................................ 1
Features.............................................................................................................. 2
Overrange Rate.............................................................................................. 2
Low Battery Indicator.................................................................................... 2
Audio Alarm.................................................................................................. 2
Integrate Mode............................................................................................... 3
Freeze Mode .................................................................................................. 3
Auto-On Backlight ........................................................................................ 3
Specifications..................................................................................................... 3
Receiving Inspection.......................................................................................... 5
Operation ........................................................................................................... 5
External Controls........................................................................................... 5
Self-Test ........................................................................................................ 6
Installation ..................................................................................................... 7
Optional Check Source Use (450 UCS) ........................................................ 7
Theory of Operation........................................................................................... 7
Maintenance....................................................................................................... 9
Preventative Maintenance ............................................................................. 9
Routine Cleaning ........................................................................................... 9
Storage........................................................................................................... 10
Battery Replacement ..................................................................................... 10
Ion Chamber Window Replacement.............................................................. 10
Outer Mylar Window Replacement............................................................... 11
Desiccant Regeneration ................................................................................. 11
Lithium Cell Replacement............................................................................. 12
Replaceable Parts Information....................................................................... 13
Recalibration and Service Information.......................................................... 13
Troubleshooting Precautions ......................................................................... 13
Troubleshooting............................................................................................. 14
Shop for Fluke products online at:
ON/OFF Button......................................................................................... 5
Mode Button ............................................................................................. 6
Integrate Mode .......................................................................................... 6
Freeze Mode.............................................................................................. 6
Self-Test Failure........................................................................................ 14
High Background Readings ...................................................................... 14
Erratic Readings ........................................................................................ 14
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