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Troxler 3440 Plus User Manual

Troxler 3440 Plus
218 pages
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NOTE
The Model 3440 Plus Surface Moisture Density Gauge can
be equipped with an optional global positioning system (GPS)
receiver. If such a gauge is moved a long distance between uses,
the GPS system must be allowed to initialize. In some instances,
initialization may take as long as 30 to 45 minutes from the time
the gauge is powered on with the GPS enabled. Note also that
the gauge must be positioned such that the GPS receiver can
receive signals from the GPS satellites (see Appendix I for more
information). If the GPS does not initialize within 45 minutes,
contact your Troxler representative.
Manual of Operation and Instruction
Model 3430 Plus & 3440 Plus
Surface Moisture-Density Gauge
Troxler Electronic Laboratories, Inc.
3008 Cornwallis Rd. P.O. Box 12057
Research Triangle Park, NC 27709
Phone: 1.877.TROXLER
Outside the USA: +1.919.549.8661
Fax: +1.919.549.0761
www.troxlerlabs.com

Table of Contents

Questions and Answers:

Troxler 3440 Plus Specifications

General IconGeneral
BrandTroxler
Model3440 Plus
CategoryMeasuring Instruments
LanguageEnglish

Summary

CHAPTER 2. THEORY OF OPERATION

Density

Explains the principles of density measurement using direct transmission and backscatter modes.

Moisture

Describes how the gauge measures moisture content using neutron thermalization and helium-3 detectors.

CHAPTER 3. GETTING STARTED

Source Rod Positions

Describes the SAFE, backscatter, and direct transmission positions for the source rod and their safe usage.

SETUP

Explains how to set up software parameters like count time, units, and depth mode for initial operation.

CHAPTER 4. USING THE GAUGE

TAKING A STANDARD COUNT

Explains the importance and procedure for taking a daily standard count to ensure measurement accuracy.

PREPARING A TEST SITE

Provides step-by-step instructions for preparing test sites for both soil and asphalt measurements.

TAKING MEASUREMENTS

Covers the general procedure for taking measurements, including checking status and storing results.

SOIL MODE

Details the procedure for measuring moisture and density of soil and soil-stone aggregate materials.

ASPHALT MODE

Outlines the steps for measuring the density of asphalt and hardened concrete layers.

CHAPTER 5. SETUP MENU

Setup Menu

Groups most setup features, allowing selection of count time, units, depth mode, stat test, and more.

STAT TEST

Guides on performing a statistical stability test to validate normal operation when readings are suspect.

DRIFT TEST

Explains how to perform a drift test to check for long-term drift between measurements after a stat test.

PRECISION

Describes how to use the Precision function to determine count time for desired measurement precision.

CHAPTER 6. TARGET MENU

TARGET VALUES

Explains how to manage Gmb (Marshall), Proctor, and Gmm (Voidless density) values for compaction analysis.

CHAPTER 7. CALIBRATION OFFSETS

Offset Menu

Provides access to density, moisture, and trench offset adjustments for accurate readings.

DENSITY OFFSET

Details how to enter or adjust density offsets when testing materials outside factory calibration ranges.

MOISTURE OFFSET

Explains manual entry or gauge derivation of moisture offsets to correct for hydrogen-rich or neutron-absorbing materials.

TRENCH OFFSET

Guides on performing a trench offset for accurate readings in trenches or near vertical structures.

CHAPTER 8. PROJECT DATA

AUTO-STORE

Covers enabling or disabling the automatic storage of sample data upon measurement completion.

APPENDIX A. RADIATION THEORY AND SAFETY

Radiation Safety

Discusses radiation dose, limiting exposure through time, distance, and shielding, and personnel monitoring.

Gauge Use Precautions

Lists essential safety precautions for transporting, storing, maintaining, and operating the gauge.

APPENDIX B. TRANSPORTATION AND SHIPPING

U.S. SHIPPING REQUIREMENTS

Details major requirements for transporting nuclear gauges within the United States according to DOT regulations.

APPENDIX C. TROUBLESHOOTING AND SERVICE

TROUBLESHOOTING

Provides solutions for common issues like gauge failing standard counts or not displaying density readings.

GAUGE READINGS APPEAR ERRATIC

Addresses issues with erratic readings, including source rod position, moisture, and stat test failures.

ERROR MESSAGES

Provides a table listing various error messages, their possible causes, and recommended solutions.

APPENDIX F. GAUGE SPECIFICATIONS

MEASUREMENT SPECIFICATIONS

Presents detailed precision, composition error, and surface error specifications in SI and U.S. customary units.

APPENDIX G. SPECIAL EUROPEAN CONSIDERATIONS

SAFETY WARNINGS

Lists specific safety warnings applicable to gauges used in European countries, including user-serviceable parts.

APPENDIX H. PRINTING (UPLOADING) PROJECT DATA

PRINTING (UPLOADING) PROJECT DATA

Guides on using HyperTerminal to print or upload project data from the gauge to a computer.

APPENDIX I. GLOBAL POSITIONING SYSTEM (GPS)

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