Troxler RoadReader 3430 Operation And Instruction Manual

Page 1
TTrrooxxlleerr RRooaaddRReeaaddeer
r
M
Mooddeell 33444400 SSuurrffaaccee
M
Mooiissttuurree--DDeennssiittyy GGaauuggee

Manual of Operation and Instruction

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
Page 2

TABLE OF CONTENTS

CHAPTER 1: INTRODUCTION ................................... 1–1
Introduction .............................................................................................. 1–2
Gauge Parts and Accessories .............................................................. 1–5
Unpacking and Inspection .................................................................... 1–7
CHAPTER 2: THEORY OF OPERATION .................. 2–1
Density........................................................................................................ 2–2
Moisture ..................................................................................................... 2–5
Calibration ................................................................................................. 2–7
CHAPTER 3: GAUGE SETUP ...................................... 3–1
Gauge Illustration .................................................................................... 3–2
Control Panel............................................................................................ 3–3
Source Rod Positions ............................................................................. 3–5
Daily Inspection ....................................................................................... 3–6
Turning the Gauge On .......................................................................... 3–6
Gauge Setup ............................................................................................. 3–8
CHAPTER 4: USING THE GAUGE ............................ 4–15
Taking the Standard Count ................................................................ 4–16
Site Preparation ..................................................................................... 4–22
Taking Measurements.......................................................................... 4–25
Recall ........................................................................................................ 4–31
CHAPTER 5: SETUP MENU ....................................... 5–1
Setup Menu .............................................................................................. 5–2
Stat Test ..................................................................................................... 5–3
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Drift Test .................................................................................................... 5–6
Nomograph .............................................................................................. 5–9
Precision .................................................................................................. 5–14
Options .................................................................................................... 5–16
Percent Air Voids (Soil Mode) ........................................................... 5–18
CHAPTER 6: TARGET MENU ..................................... 6–1
Target Menu ............................................................................................. 6–2
Target Values ........................................................................................... 6–3
CHAPTER 7: CALIBRATION OFFSETS ........................ 7–1
About Offsets ........................................................................................... 7–2
Density Offset ........................................................................................... 7–4
Moisture Offset ........................................................................................ 7–5
Trench Offset ............................................................................................ 7–9
CHAPTER 8: PROJECT DATA .................................... 8–1
Project Menu ............................................................................................ 8–2
Select a Project ........................................................................................ 8–3
View Project Data .................................................................................... 8–4
Create a Project ....................................................................................... 8–5
Erase Projects ........................................................................................... 8–6
Output Project ......................................................................................... 8–7
Set Output Destination ........................................................................ 8–11
Deactivate a Project.............................................................................. 8–11
Auto-Store .............................................................................................. 8–12
Manual Store .......................................................................................... 8–14
CHAPTER 9: EXTENDED MENU ................................ 9–1
Model 3440 ix
Page 4
Extended Menu ....................................................................................... 9–2
Clock/Calendar ........................................................................................ 9–3
User ID ........................................................................................................ 9–3
Customer Name ...................................................................................... 9–3
Language................................................................................................... 9–4
Source Decay ........................................................................................... 9–4
Erase Standard Counts .......................................................................... 9–5
Low Battery Warning .............................................................................. 9–6
Software Reset ......................................................................................... 9–7
Test Menu ................................................................................................. 9–7
APPENDIX A : MAINTENANCE & TROUBLESHOOTING .. A-1
Troubleshooting ...................................................................................... A-2
Display Contrast .................................................................................... A-10
Batteries ................................................................................................... A-11
Battery Charging ................................................................................... A-13
Mechanical Maintenance .................................................................... A-16
Replacement Parts ................................................................................ A-20
Returning the Gauge for Service ...................................................... A-22
APPENDIX B : SPECIFICATIONS ...................................... B-1
Measurement Specifications ................................................................. B-2
Radiological Specifications .................................................................... B-4
Electrical Specifications ........................................................................... B-4
Mechanical Specifications ...................................................................... B-6
APPENDIX C : TRANSPORTING & SHIPPING .................. C-1
U.S. Shipping Requirements ................................................................. C-2
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Canadian Shipping Requirements ...................................................... C-4
APPENDIX D : RADIATION THEORY & SAFETY ............... D-1
Radiation Theory ..................................................................................... D-2
Radiation Safety ....................................................................................... D-5
Regulatory Requirements ...................................................................D-13
Gauge Use Precautions .......................................................................D-16
Radiation Profile ....................................................................................D-17
APPENDIX E : UNIT CONVERSION .................................. E-1
Measurement Units ................................................................................. E-2
Radiological Units ..................................................................................... E-2
APPENDIX F : STANDARD COUNT LOG .......................... F-1
APPENDIX G : SPECIAL EUROPEAN CONSIDERATIONS . G-1
Declaration of Conformity .................................................................... G-2
Safety Warnings ....................................................................................... G-3
APPENDIX H : GLOBAL POSITIONING SYSTEM (GPS) ..... H-1
GPS Accuracy ........................................................................................... H-2
INDEX
WARRANTY
Model 3440 xi
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LIST OF FIGURES

Figure 1. Model 3440 Gauge and Accessories ............................... 1–6
Figure 2. Direct Transmission Geometry .......................................... 2–3
Figure 3. Backscatter Geometry .......................................................... 2–3
Figure 4. Backscatter Surface Density Effects .................................. 2–4
Figure 5. Effect of Moisture on Depth of Measurement .............. 2–6
Figure 6. Gauge Illustration .................................................................. 3–2
Figure 7. Model 3440 Keypad ............................................................. 3–3
Figure 8. Source Rod Positions ........................................................... 3–5
Figure 9. Standard Count Position ................................................... 4–18
Figure 10. Drill Rod Positioning ......................................................... 4–23
Figure 11. Marking the Test Area ..................................................... 4–24
Figure 12. Adjusting the Display Contrast ...................................... A-10
Figure 13. NiMH Battery Pack and AA Batteries .......................... A-12
Figure 14. Diagram of an Atom .......................................................... D-2
Figure 15. Effect of Distance on Exposure ....................................... D-6
Figure 16. Cleaning the Tungsten Sliding Block .......................... D-11
Figure 17. Model 3440 Gauge and Transport Case ................... D-17
xii
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LIST OF TABLES

Table 1. Model 3440 Keypad Functions ........................................... 3–4
Table 2. Spreadsheet Column Definitions ...................................... 8–10
Table 3. Error Messages ........................................................................ A-7
Table 4. Typical Battery Operating Life ........................................... A-12
Table 5. Radiation Profile for Model 3440 Gauge ...................... D-18
Table 6. GPS Position Accuracy .......................................................... H-4
Model 3440 xiii
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ATTENTION MODEL 3440 GAUGE OWNER

This unit contains functions that require an Access Code
to be entered. This allows some control over the access
to these functions. If you would like management to
retain this control, remove this page upon receipt of the
gauge and file it somewhere safe.

THE ACCESS CODE IS FOR THIS GAUGE IS:

4708
xiv
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CChhaapptteerr 11:: IInnttrroodduuccttiioonn

This chapter covers the following topics and tasks:

An introduction to your new Model 3440 gauge Inspecting and unpacking Included parts and accessories
Model 3440 1–1
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IInnttrroodduuccttiioonn
The Model 3440 Surface Moisture-Density Gauges have become the industry standard for measuring the moisture content and density of construction materials. With the new Model 3440 gauge, Troxler has added a number of features to the proven
technology of the company’s earlier products to provide
increased performance, flexibility, ease of use, and operator safety.
Using the Model 3440 gauge, you can quickly and precisely measure the moisture content and density of construction materials. The gauge features:
Two measurement modes (Soil and Asphalt) for precise
compaction control readings in most construction materials:
Use Soil Mode for moisture/density determinations in soil and soil-stone materials in layers of four inches or greater.
Use Asphalt Mode for density determinations in asphalt or hardened concrete layers of four inches or greater.
A Nomograph function for density determinations in
asphalt layers of fewer than four inches.
Calibration offsets (density, moisture, and trench) to
expand measurement possibilities, and to enhance gauge readings on materials that may fall outside the range of factory calibration.
Over 30 functions to facilitate all phases of testing
compaction on construction materials.
A backlit LCD screen to help you read the display during
night construction.
Easy-to-use keypad and user-friendly menus to reduce
training time to increase productivity. A backlit keypad is available as an upgrade (see page 5–17 for more information).
An internally mounted beeper, which emits a short tone in
response to a valid keystroke on the keypad. The beeper sounds a longer tone if you press an invalid key, if the gauge
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displays an error message, or to signal the conclusion of a measurement.
A USB port that can be used to output data to a USB printer
or flash drive. A list of compatible USB devices is available at: www.troxlerlabs.com/documents
A serial port used to connect the gauge to a computer or
printer for data transfer and printing.
An optional remote keypad, including a START and ESC
key, at the top of its source rod housing. See page 5–16 for more information.
In addition to the internal beeper, a louder external beeper
is available (see page 5–16). The external beeper performs the same functions as the internal one, and can be enabled or disabled as required.
The Model 3440 can also be equipped with an optional global positioning system (GPS) receiver. The GPS receiver enables the gauge to store precise GPS coordinates, along with the standard date and time stamp, for each measurement. For more information on the GPS option, refer to page 5–17.

ASTM Standards

The Model 3440 gauges meet or exceed all applicable American Society of Testing and Materials (ASTM) standards (or corresponding equivalent), including:
ASTM D-2950: Standard Test Method for Density of
Bituminous Concrete in Place by Nuclear Method.
ASTM D-6938: Standard Test Methods for In-Place Density
and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth)
Model 3440 1–3
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NOTE
As of November 2006, ASTM D-6938 replaces ASTM D-2922: Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth) and ASTM D-3017: Standard Test Method for Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth).
Any licensing issues discussed in this manual are for the United States. To purchase a Model 3440 in Canada, owners must obtain a radioisotope license from the Canadian Nuclear Safety Commission (CNSC). The owner should obtain copies of the CNSC Regulations and the Transportation of Dangerous Goods Act and Regulations (TDG). For other countries, please consult your local regulatory agency.
Owners are encouraged to require study of this manual before allowing anyone to use the gauge. A potential hazard does exist if improperly used. Appendix C and Appendix D, which cover radiological safety and transportation requirements, should be required reading for all users and potential users. If
these appendices are not completely understood, users should seek assistance from Troxler, an appointed Troxler representative, or others designated within the user's organization.
Additional radiation safety information is available by completing a Troxler Nuclear Gauge Safety Training Course. For pricing and availability of these in-person and online courses, visit the Troxler website at www.troxlerlabs.com/training or contact your Troxler representative.
Before operating the gauge, users in European countries must refer to : Special European Considerations for special considerations, additional safety warnings, and the Declaration of Conformity.
Because changes are made to local, state, and federal regulations on a continuing basis, the owner/operator must maintain awareness of current requirements. The responsibility for compliance ultimately falls on the owner. An owner in the United States may also wish to purchase and subscribe to Titles
1–4
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GGaauuggee PPaarrttss aanndd AAcccceessssoorriieess
10 and 49 of the Code of Federal Regulations (CFR) in addition to applicable local/state regulations.
Use Figure 1 and the list below to identify the gauge and parts as they are unpacked.
The gauge is the portable instrument containing all
electronic modules, the rechargeable battery pack, detectors, and the radioactive sources.
The Reference Standard Block provides a measurement
standard for standard counts and is used during stat and drift tests.
The Drill Rod is used to drill holes for direct transmission
measurements. Do not use the source rod of the gauge to drill holes.
The Scraper Plate / Drill Rod Guide is used to prepare the
test site and to guide the drill rod when preparing the site for direct transmission measurements.
The Extraction Tool provides leverage to remove the drill
rod from soil materials.
The AC charger and DC adapter are used to charge the
gauge batteries. The AC charger accepts 90 – 220 V AC, 50/60 Hz and supplies 12 V DC. The DC adapter allows recharging from an automobile accessory power outlet.
The Transport Case provided with the gauge has been
approved as a Type A package and should not be altered. Always use this transport case when transporting or shipping the gauge.
The Manual of Operation and Instruction details how to
use the gauge.
Model 3440 1–5
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Figure 1. Model 3440 Gauge and Accessories
1–6
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UUnnppaacckkiinngg aanndd IInnssppeeccttiioonn
Troxler recommends that all operators wear a dosimeter while working with the gauge. Upon receipt of the gauge from the factory, perform a complete inspection and inventory. If the shipping case and/or any other part or accessory appears damaged, notify the carrier and your Troxler Representative immediately.
Save the box and any packing material for shipping to another location or back to the factory
Check the shipping case for the following:
Gauge Reference Standard Block Drill Rod Scraper Plate/Drill Rod Guide Extraction Tool AC charger DC adapter (for a vehicle cigarette lighter) Manual of Operation and Instruction Gauge warranty Source Certificate Transportation Guide (This guide refers to U.S. standards. All
other countries please refer to local regulations. In the absence of local regulations, please use this guide as a reference only.)
NOTE
Charge the batteries for three hours prior to initial use.
Model 3440 1–7
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11..
22..
33..
44..
Complete the unpacking and inspection by following these steps:
Lift the gauge from the transport case and inspect the outside surface for damage.
Check the lock on the source rod handle and make sure the keys fit.
Remove the lock, release the trigger, and check the source rod operation. It should move up and down with minimal effort.
Replace the handle lock and return the gauge to the transport case.
NOTES
1–8
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CChhaapptteerr 22:: TThheeoorryy ooff OOppeerraattiioonn

This chapter covers the following topics and tasks:

Theory of operation Direct transmission and backscatter modes Overview of density and moisture measurements Explanation of the sources and detector geometry
Model 3440 2–1
Page 18
DDeennssiittyy
The Model 3440 gauge utilizes two modes of operation: direct transmission mode (with the source rod extended into the
material) and backscatter mode. Figure 2 and Figure 3 illustrate these two modes of operation.
WARNING!
The source rod should always be locked in the SAFE position when the gauge is not in use.
Source rod positions are described on page 3–5.
In direct transmission mode, the rod containing the Cesium-137 (8 mCi/0.3 GBq) source is lowered to the desired depth. The detectors in the gauge base measure the radiation emitted by the source rod. Gamma photons reaching the detectors must first pass through the material, colliding with electrons present in the material. Generally, the lower the number of photons that reach the detectors, the more dense the material is.
In backscatter mode, the gamma photons that enter the material must be scattered (or reflected) to reach the detectors. With the rod locked in the first notch, the source and detectors are in the same plane, referred to as the backscatter position. Photons emitted from the source penetrate the material and the detectors measure the scattered photons.
While the direct transmission geometry measures the average density of the material from the source to the surface, the backscatter geometry yields an average heavily weighted by the density close to the surface.
Figure 4 shows two normalized top layer effect curves, illustrating the percentages of photons at the detectors for various depths. The two curves can be used to compute the gauge response to layered material of different densities. For example, the density of the top inch of a surface layer accounts for about 52% of the backscatter density measurement.
2–2
Page 19
Figure 2. Direct Transmission Geometry
Figure 3. Backscatter Geometry
Model 3440 2–3
Page 20
Figure 4. Backscatter Surface Density Effects
(Top Layer Effect Curves)
2–4
Page 21
MMooiissttuurree
The Model 3440 gauge uses a 40 mCi (1.48 GBq) Americium-241:Beryllium neutron source to measure the hydrogen content (consequently the water content) of the material.
Neutrons emitted by the Am-241:Be source penetrate the material and are thermalized (or slowed). Thermalization is the process where neutrons are slowed to the point where further collisions with hydrogen or other materials will not continue to slow the neutron.
The Model 3440 gauge contains a helium-3 neutron detector that is sensitive to thermalized neutrons. This detector is insensitive to non-thermalized or “fast” neutrons and, as a result, the counts obtained are directly proportional to the amount of hydrogen/moisture present in the material.
The depth of measurement, or depth at which 98% of the counted neutrons pass before reaching the detector, is a function of moisture content:
Depth (in.) = 11 – (0.17  M), where: M = moisture in pcf
or
Depth (mm) = 280 - (0.27  M), where: M = moisture in kg/m3
Therefore, the higher the moisture content in the material being measured, the smaller the depth of measurement. The normalized curve set shown in Figure 5 illustrates the effect of moisture content on the depth of measurement.
Model 3440 2–5
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Figure 5. Effect of Moisture on Depth of Measurement
2–6
Page 23
CCaalliibbrraattiioonn
Troxler calibrates the gauge at the factory and recommends that it always be calibrated by an authorized Troxler service center. For a list of Troxler and authorized Troxler service centers, refer to page ii of this manual or visit the Troxler website at:
www.troxlerlabs.com/services

Offsets

The factory calibration provides accurate results for the majority of materials encountered in construction. If the gauge is to be used to test materials not covered by the factory calibration, the readings can be adjusted using an offset.
Perform a density offset if the test material is outside the density range for average soil or if the material composition varies from average soil/asphalt.
Perform a moisture offset if the test material contains hydrogenous materials (other than water) or materials that absorb neutrons. Materials such as cement, gypsum, coal, mica, and lime all contain chemically bound hydrogen that will cause the gauge to display a moisture content that is higher than it actual. Material such as boron and cadmium are neutron absorbers and will cause the gauge to display a moisture count that is lower than actual.
Vertical structures scatter neutrons and gamma photons back to the gauge. This could result in inaccurate moisture and density readings. To take readings in a trench or within 0.6 m (2 ft.) of a large vertical structure, perform a trench offset.
Model 3440 2–7
Page 24
CChhaapptteerr 33:: GGaauuggee SSeettuupp

This chapter covers the following topics and tasks:

Overview of the control panel Source rod positions Daily inspection Turning the gauge on Using the Setup menu
Model 3440 3–1
Page 25
GGaauuggee IIlllluussttrraattiioonn
The following figure shows the various components of the gauge that will be referred to throughout this manual.
Figure 6. Gauge Illustration
3–2
Page 26
CCoonnttrrooll PPaanneell
            
POWER SWITCH
BATTERY CHARGING INDICATOR
CHARGER
CONNECTOR
RS-232 PORT
USB PORT*
The gauge’s control panel contains the keypad, power switch, display, and USB port, battery charging indicator, charger connector, and the RS-232 port.
The gauge is equipped with an internal beeper to verify keystrokes. If a beep is not heard when a key is pressed, the keystroke was not recognized and should be repeated.
Table 1 on page 3–4 provides a description of each key.

NOTE

The gauge will automatically turn off after five hours if no keys are pressed.
Figure 7. Model 3440 Keypad
Model 3440 3–3
Page 27
KEY
FUNCTION
STORE
Store the most recent data in the current
project file.
RECALL
Display the most recent data.
PROJ
Select or create a project file and view,
output, or erase project data file.
STATUS
Display gauge status information.
SETUP
Display the gauge Setup menu.
OFFSET
Enable, disable, or change a density,
moisture, or trench offset.
TARGET
Select, enter, or disable a Gmb (Marshall),
Proctor, or Gmm (Voidless density) value.
MODE
Select Asphalt or Soil measurement mode.
STD
Take a standard count.
SPACE
Enter a space.
LIGHT
Manually toggle the LCD and keypad
backlights on and off.
YES
Respond yes to yes/no questions.
NO
Respond no to yes/no questions.
ESC
Return the display to the Ready screen
without storing or updating the data.
0 .. 9
Enter numbers and access menu options.
BACK SPACE
Moves cursor back one space.
, 
Scroll through menu options or view screens.
 . 
Enter a decimal point.
ALPHA LOCK
Access the letters.
A .. Z
Enter letters. Access these keys by first
pressing ALPHA LOCK.
ENTER/START
Accept data entry or begin a measurement.
Table 1. Model 3440 Keypad Functions
3–4
Page 28
SSoouurrccee RRoodd PPoossiittiioonnss
BS
2"
50mm
3"
75mm
4"
100mm
5"
125mm
6"
150mm
7"
175mm
8"
200mm
9"
225mm
10"
250mm
11"
275mm
12"
300mm
As shown in Figure 8, the source rod can be placed in the SAFE, backscatter, or direct transmission positions. When not taking measurements, keep the source rod in the SAFE position.
When measuring thin layer or other materials through which you cannot drill a hole, use the backscatter position. In the direct transmission positions, the source rod extends into a pre­drilled hole.
Figure 8. Source Rod Positions
(Maximum Depth of 300 mm in Increments of 50 mm)
Model 3440 3–5
Page 29
DDaaiillyy IInnssppeeccttiioonn
TTuurrnniinngg tthhee GGaauuggee OOnn
The gauge should be inspected daily before use to ensure proper operation of all safety features. Refer to page D-9 for the inspection procedure.
The gauge uses rechargeable NiMH batteries (included) as a power source. When first turned on, the control panel displays test characters before proceeding to the self-test.
To turn the gauge on, toggle the on/off switch located to the left of the gauge’s display. Upon turning the gauge on, the gauge displays:
The gauge then performs a test of its LCD (liquid crystal display):
-Model 3440-
Vx.xx SN: xxx
Testing LCD
123456789ABCDEF
After the gauge performs a 300-second self-test, the gauge enters the Ready mode. In this state any of the gauge functions may be accessed.
The Ready mode display is:
-READY- g 01-08-2014 12:21 PM
Prj: TROXLER
Press <START>
3–6
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NOTE
The symbol g in the upper right of the display indicates that the GPS option (see page 5–17) is installed, the option is enabled, and the gauge is receiving GPS satellite signals.
NOTE
If the gauge display is difficult to read in bright light, adjust the contrast as described in the
Contrast
After five hours of no activity, the gauge automatically performs a total power shutdown.
section on page A-10.
Display
NOTE
If the charge calibration (see page A-14) is gauge will not perform an automatic shutdown.
Model 3440 3–7
BAD
, the
Page 31
GGaauuggee SSeettuupp
After turning the gauge on, you can set several parameters, including measurement units and count time. These parameters do not usually change once they are set.
The gauge offers a Status function that enables you to view selected information about the current gauge status and setup.
To access this function, press the STATUS key.
The gauge displays two screens of information, including the measurement units, count time, measurement mode, battery status, Gmb (Marshall) value, Proctor value, Gmm (Voidless density) value, and measurement depth. Use the arrow keys to scroll between the two screens.
To begin, press the SETUP key. For information on all of the functions available from the Setup menu, see Chapter 5: Setup Menu.

Setting the Count Time

The count time defines how long the gauge measures. Longer count times produce better measurement precision. Troxler recommends a count time of one minute for most sample measurements.
To change the count time, press 1 at the Setup menu. The gauge displays:
TIME: 1 m
1. 15 sec
2. 1 min
3. 4 min
The first line displays the current count time. Select the desired count time using the corresponding number key. The gauge sets the new count time and returns to the Setup menu.
3–8
Page 32

Setting Measurement Units

The gauge can display measurement results in either U.S. units (pcf) or metric (SI) units (kg/m3 or g/cm3). To select the units,
press 2 at the Setup menu. The gauge displays:
- UNITS –
1. pcf
2. kg/m3
3. g/cm3
Select the new units using the corresponding number key. The gauge sets the new units and returns to the Setup menu.

Setting the Depth

The Model 3440 gauge offers two depth modes: Automatic and Manual. In the Automatic mode, the gauge software determines
the source rod depth automatically. In the Manual mode, the operator must enter the source rod depth at a gauge prompt whenever taking a measurement.
The Depth Mode function allows you to set the depth mode. To access this function, press 2 at the Setup menu .The gauge displays:
Mode: Manual
1. Manual
2. Auto Press # to Select
Select the desired depth mode using the corresponding number key. After the depth mode is selected, the gauge sets the mode and returns to the Setup menu.
Model 3440 3–9
Page 33

Extended Menu

The gauge is shipped with the current date and time (Eastern Standard Time) stored in its memory. In addition, the gauge can store a user ID and customer name. These settings are accessed from the Extended menu.
This menu includes functions that are intended for use by authorized personnel only, and requires the use of the access code shown at the front of this book.
To access the Extended menu, press . 9 at the Setup menu. The gauge requests an access code:
Input Access Code
_
After entering the access code (see page xiv), the gauge displays the Extended menu.
Press <ENTER>
After setting the date and time, user ID, and/or customer name as described in the following sections, press ESC to return to the Setup menu.
For information on all of the functions available from the Extended menu, refer to Chapter 9: Extended Menu.
Clock/Calendar
The Clock/Calendar function allows the operator to change the date and time, and to select the display format for each. To
access the Clock/Calendar menu, press 1 at the Extended menu.
The gauge displays:
- Clock/Calendar
1. Change Time
2. Change Date
3. Time Format
3–10
Page 34
- Clock/Calendar
4. Date Format
Use the up and down arrows to scroll between the menu options. To select a menu option, press the corresponding
numeric key. To return to the Extended menu, press the ESC key.
CHANGE TIME
To change the time, press 1 at the Clock/Calendar menu. The gauge displays:
hh: mm AM
Arrow toggle AM/PM
Input Time and
Press <ENTER>
(Note that in this example, the time is displayed in AM/PM format. To change the format, see the Time Format section on the following page.)
To accept the displayed time, press ENTER/START. To change the time, use the numeric keys to enter the new time, and the arrow keys to toggle between AM and PM. Press ENTER/START. The gauge sets the time and returns to the Clock/Calendar menu.
CHANGE DATE
To change the date, press 2 at the Clock/Calendar menu. The gauge displays:
01/08/2014
mm/dd/yyyy
Input Date and
Press <ENTER>
Model 3440 3–11
Page 35
(Note that in this example, the time is displayed in mm/dd/yyyy format. To change the date format, refer to the Date Format section below.)
To accept the displayed date, press ENTER/START. To change the date, use the numeric keys to enter the new date. When finished, press ENTER/START. The gauge sets the date and returns to the Clock/Calendar menu.
TIME FORMAT
The gauge can display the time in either AM/PM or 24-hour format. To select the desired time format, press 3 at the Clock/Calendar menu. The gauge displays:
-Time Format-
1. AM/PM
2. 24-Hour
Use the numeric keys to select the desired time format. The gauge sets the time format and returns to the Clock/Calendar menu.
DATE FORMAT
The gauge can display the date in either mm/dd/yyyy or dd/mm/yyyy format, where mm is the month, dd is the day, and
yyyy is the year. To change the date format, press 4 at the Clock/Calendar menu. The gauge displays:
-Date Format-
1. mm/dd/yyyy
2. dd/mm/yyyy
Use the numeric keys to select the desired format. The gauge sets the date format and returns to the Clock/Calendar menu.
3–12
Page 36
User ID
The gauge can store a three-character alphanumeric user ID with each measurement. To enter or change the user ID, press
2 at the Extended menu. The gauge displays:
User ID is:
XXX
Change ID?
<YES> or <NO>
To change the user ID, press YES. The gauge displays:
User ID: A
Input ID and
Press <ENTER>
Press the ALPHA LOCK key to enable the alphabetic keys on the gauge. When the alphabetic keys are enabled, the symbol A appears in the upper right of the display, as shown above.
Enter the new user ID and press ENTER/START. The gauge stores the new user ID and returns to the Extended menu.
Customer Name
The gauge can store a customer name of up to 12 alphanumeric characters. To enter a customer name, press 3 at the Extended menu. The gauge displays the current customer name on the
second line.
Customer Name is:
CUSTOMER Change Name? <YES> or <NO>
Model 3440 3–13
Page 37
To change the customer name, press YES. The gauge displays:
Customer Name: A
Input Name and Press <ENTER>
Press the ALPHA LOCK key to enable the alphabetic keys on the gauge. When the alphabetic keys are enabled, the symbol A appears in the upper right of the display, as shown above.
Enter the new name and press the ENTER/START key. The gauge stores the new customer name, then returns to the Extended menu.
Press ESC twice to return to the Ready screen.

Setting the Measurement Mode

The gauge provides two measurement modes (Soil and Asphalt) for precise readings on base asphalt, concrete, soil, soil-stone aggregate, and similar materials. The gauge can also be used to determine the density of thin-layer overlays using the Nomograph function described on page 5–9.
Before taking a measurement, select the appropriate measurement mode by pressing the MODE key. The gauge displays:
Mode: Asphalt
1. Asphalt
2. Soil Press # to Select
NOTE
The MODE key is active only when the is displayed.
3–14
Ready
screen
Page 38
CChhaapptteerr 44:: UUssiinngg tthhee GGaauuggee

This chapter covers the following topics and tasks:

Taking a standard count Preparing a test site Taking measurements Using the Recall function
Model 3440 4–15
Page 39
TTaakkiinngg tthhee SSttaannddaarrdd CCoouunntt
The Model 3440 gauge uses a Cesium-137 and an Americium-241:Beryllium source for taking measurements. These radioactive sources undergo a natural decay process, resulting in a gradual loss in the intensity of their radiation. The time required for the source strength to diminish by 50% is referred to as the half-life.
To compensate for the source decay and to check proper operation of the gauge, a daily reference standard count should be performed. To ensure the highest accuracy possible with the gauge, it is important to take a daily standard count.
The gauge is equipped with a reference standard block for taking the standard count.

Site Requirements

Choose a standard count site that meets the following criteria: A smooth, dry surface such that the reference standard
block does not rock.
At least 3 meters (10 ft.) from any large vertical surface. At least 10 meters (33 ft.) from any other radioactive source. On asphalt, concrete, or compacted soil at least 10
centimeters (4 in.) thick and with a density of at least 1600 kg/m3 (100 pcf).
NOTE
Always take standard counts using the reference standard block provided with the gauge.
4–16
Page 40
11..
22..
33..
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55..
66..

To take a standard count:

Ensure that the gauge base and reference standard block are dry and free of debris.
Place the reference standard block on the standard count site.
Ensure the source rod is in the SAFE position.
As shown in Figure 9, place the gauge on the reference standard block, with the right side (keypad side) of the gauge against the metal butt plate.
From the Ready screen, press STD. The gauge displays standard counts for density (DS) and moisture (MS):
Standard Count DS= #### MS= ####
Take New Count?
To take a new standard count, press YES and follow
the instructions starting at step 6 below.
To view the last four standard counts, press NO and
follow the instructions in the Viewing Standard Counts section on page 4–21.
When taking a new standard count, the gauge displays:
Place Gauge on
Std. Block & Source
Rod in SAFE Pos.
Press <ENTER>
Model 3440 4–17
Page 41
77..
88..
Figure 9. Standard Count Position
Begin the standard count by pressing the ENTER/START key. The gauge displays:
Taking
Standard Count
### s
Remaining
After taking the standard count, the gauge displays the results:
DS= #### ##.#% P MS= #### ##.#% P
Do You Want to
Use the New Std?
4–18
Page 42

Recording the Standard Count

Troxler recommends keeping a daily log of the moisture and density standard counts (see Appendix E for a sample log).
To verify gauge stability, compare the daily standard count to a reliable reference as follows:
During the first four days of operation of a new or
recalibrated gauge, compare the daily standard count to the factory-calibrated values.
After the first four days of operation (or after taking four
standard counts), compare the daily standard count to the average of the last four counts. Acceptable standard count limits are:
1% each day for DS (density standard) and 2% each day for MS (moisture standard).
After recording the standard counts, press YES to return to the
Ready mode.
NOTE
The factory standard count values should be used as a reference if the daily standard counts are ever in question. Be sure to refer to the most recent calibration report for the gauge in question.
Model 3440 4–19
Page 43
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22..
33..
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If the standard count fails:
If the standard count fails and it has been more than a month since the last standard count, then do the following:
Accept the standard count by pressing the YES key.
At the Do You Want To Erase Last Four Standard
Counts? prompt, press the YES key. The gauge displays:
Depth Calibration
Set Rod to BS.
And Press ENTER
Follow the displayed instructions, and take four additional standard counts. The last of these counts will be compared to the previous four, and the standard counts should pass. If not, repeat the procedure. If it still fails, perform a stat test (see page 5–3) and a drift test (see page 5–6), then contact your Troxler representative.
If the standard count fails and it has been less than a month since the last standard count, but the count was performed correctly and the failure is less than 5%, do the following:
Press the YES key. If the failure is more than 5%, press the NO key.
Ensure that the gauge is properly positioned on the reference standard block (see Figure 9).
Verify that the standard count site meets the criteria listed on page 4–16.
Take another standard count and accept it if it fails by less than 5%.
If the standard count fails four times, perform a stat test (see page 5–3) and a drift test (see page 5–6), then contact your Troxler representative.
4–20
Page 44
After the standard count passes, the operator can take measurements with the gauge. When not taking readings, always keep the source rod in the SAFE position. For added user safety, the source rod automatically retracts to the SAFE position when the gauge is lifted using the handle.

Viewing Standard Counts

To view the last four standard counts, press NO at the display shown at the bottom of page 4–18. The gauge displays:
Standard Count
Want to View
Last Four Counts?
<YES> or <NO>
Press YES to view the last four standard counts. The gauge
displays the last four density standard counts. Press YES to view the last four moisture standard counts. Press ENTER/START to return to the Ready screen.
Press NO to return to the Ready screen.
Model 3440 4–21
Page 45
SSiittee PPrreeppaarraattiioonn
11..
22..
33..
44..
Preparation of the test site surface is critical to gauge performance. This section provides site preparation procedures for both soils and base courses and asphalt surfaces. To ensure the most accurate gauge readings, the appropriate preparation procedure should be followed.

Soil and Base Course Preparation

Locate a level site free from any large holes, cracks, or debris (soil surface conditions are critical to accurate measurements).
Smooth the surface by moving the scraper plate in a back and forth motion. Filler such as fine sand may be used to fill in the surface voids.
CAUTION
Use only enough filler to fill the voids. Too much filler
will cause an error in the measurement.
For direct transmission measurements, put the drill rod through the extraction tool and then through one of the guides on the plate (see Figure 10).
WARNING!
Under no circumstances should you use the source rod of the gauge to drill holes.
Wearing a radiation badge and safety glasses (or other locally approved safety devices), step on the plate and hammer the drill rod at least 50 mm (2 in.) deeper than the desired test depth. The drill rod increments include the additional depth.
4–22
Page 46
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66..
77..
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99..
Figure 10. Drill Rod Positioning
Remove the drill rod by pulling straight up and twisting the extraction tool. Do not loosen the drill rod by tapping from side to side with a hammer. This will distort the hole or cause loose material to fall into the hole.
To ensure accurate placement of the gauge, before removing the scraper plate, mark the test area using the drill rod as shown in Figure 11.
Carefully pick up the scraper plate and place the gauge on the surface prepared by the plate. Insert the source rod into the hole made by the drill rod. Use care when inserting the source rod; do not to disturb the soil around the hole.
Lower the source rod into the hole. Release the trigger and lock the source rod into the correct position. A click should be heard when the source rod is locked into position.
Gently slide the gauge toward the keypad so the source rod makes contact with the wall of the hole.
Model 3440 4–23
Page 47
11..
22..
MARK FOR SCRAPER
MARK FOR DRILL
METHOD 1
EDGE
METHOD 2
SCRAPER
SCRAPER
Figure 11. Marking the Test Area

Asphalt Surface Preparation

It is possible, but usually not necessary, to take direct transmission readings on asphalt. Drilling a hole in asphalt can be difficult, and may require the use of a proper drill (not the drill rod) if the asphalt has cooled and hardened.
Under normal conditions, a backscatter reading provides an accurate measurement of asphalt density. To prepare the site:
Find a smooth location on the asphalt. You may want to fill the voids on open mixes with sand or cement. Take care to leave the asphalt exposed. The gauge base must rest on the asphalt, not the fill material!
Ensure that the gauge does not “rock.” It must remain
steady.
If rocking occurs, find a more suitable test site. If taking a measurement around a core, the gauge may be moved up to a few inches to any side of the hole.
These directions also apply to taking a backscatter measurement on soil.
4–24
NOTE
Page 48
TTaakkiinngg MMeeaassuurreemmeennttss

Soil Mode

The Soil mode is automatically selected when a Proctor value is enabled (see page 3–9).

CAUTION

When not taking measurements, always keep the
source rod in the SAFE position. For added operator
safety, the source rod on the gauge automatically
retracts to the SAFE position when the gauge is lifted
by the handle.
If you do not hear a click when the gauge is raised to the SAFE position, look at the bottom of the gauge to verify that the tungsten sliding block is completely closed. If the gauge base opening is not completely closed by the sliding block, the block may require cleaning. Refer to page D-10 for cleaning instructions.
WARNING!
Do not store or transport the gauge unless the sliding block is completely closed. Increased radiation levels may violate transportation regulations and cause excessive personnel exposure.
The Status function (see page 3–8) allows you to view selected information concerning the current gauge status and setup. To
access the Status function, press the STATUS key. Check the gauge’s current status before taking measurements.
Remember to take a standard count at least once each day the gauge is to be used (see page 4–16). Note that some states may require that a standard count be taken more frequently than once per day.
Model 3440 4–25
Page 49
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The gauge can store measurement results in files (memory locations) called projects. For information on creating and activating project files, refer to Chapter 8. Upon completion of a measurement, the results can be stored either automatically by enabling the Auto-Store function (see page 8–12) or manually by using the Store function (see page 8–14).
To take a measurement:
Select the soil mode (see Error! Reference source not found. on page 3–14).
Enter or change the Proctor value, if desired (see Chapter 6).
Prepare the test site (see page 4–22)
Place the gauge on the test area.
Lower the source rod into the hole made by the drill rod. Use care when inserting the source rod. Try not to disturb the soil around the hole.
Ensure that the handle stops in the notch designated for the proper measurement depth.
Gently slide the gauge to the right (towards the keypad) so the source rod makes contact with the wall of the hole.
Press ENTER/START.
In the Manual depth mode (see page 53), the gauge
prompts for the source rod depth. Enter the source rod depth using the number keys. For example, with the
source rod in the backscatter position, press 0, and then press ENTER/START.
In the Automatic depth mode, the gauge software
determines the source rod depth automatically.
Note that the Proctor value is based on soil particles
3/8” or less in diameter (or those passing a #4 sieve). If an unusual reading is obtained and oversize particles are suspected, rotate the gauge 90. Use the same drill hole to take a second reading.
4–26
Page 50
88..
After the count time has elapsed, the gauge displays the measurement results in a series of three screens. Use the up and down arrows to scroll through the various screens.
%PR= ###.# DD= ##.# WD= ###.# M= ##.# %M= ##.#
Lat: +hh mm ss.ss Lng: -hh mm ss.ss
where:
%PR = percent Proctor
%M = percent moisture
DD = dry density
Lat = latitude
WD = wet density
Lng = longitude
M = moisture
Model 3440 4–27
Page 51
NOTE
The latitude and longitude display, showing the location of the measurement, is available only on Model 3440 gauges equipped with the optional GPS and is shown only when it is enabled.
The latitude and longitude values denote the quality of the location fix. If WAAS information is available during a gauge measurement, the latitude and longitude will be displayed to the nearest hundredth (1/100) of a second.
If a GPS location is determined, but the WAAS information is unavailable, the latitude and longitude will be displayed to the nearest tenth (1/10) of a second.
If the GPS receiver cannot determine a location, the latitude and longitude will be denoted as 0. For more information on GPS accuracy, see Appendix H.
If a project is active and the Auto-Store function (see page 8–12) is enabled, press ESC or ENTER/START to continue. For each measurement, the gauge can store a location description of up
to 12 characters, as well as a note of up to 15 characters. Follow the prompts to enter location information and/or a note.
If a project is active but the Auto-Store function is not enabled:
Press STORE to store the results. Follow the prompts to
enter location information and/or notes. For more information on storing results manually, see page 8–14.
Press ESC to return to the Ready screen without storing
the results. Note that, until another measurement has been taken, the results can be recalled as described on page 4–31 and stored later.
4–28
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Lift the gauge from the test site by the source rod handle. This returns the source rod to the SAFE position, where it should stay when not taking readings.

Asphalt Mode

The Asphalt mode is automatically selected when a Gmb value is enabled (see page 3–9).
To measure the density of asphalt (and hardened concrete of 4 inches or more), follow the steps below:
Select the Asphalt mode (see page 3–14).
Enter or enable the Marshall value and/or voidless density value (see Chapter 6).
Prepare the test site as described on page 4–22.
Place the gauge on the test area.
Lower the source rod to the backscatter position (just below the SAFE position). Release the trigger.
Gently push the handle down to lock the source rod into position. You should hear a click when the source rod locks into position.
Press the START key.
In the Manual depth mode (see page 53), the gauge
prompts for the source rod depth. Enter the source rod depth using the number keys. For example, with the
source rod in the backscatter position, press 0, and then press ENTER/START.
In the Automatic depth mode, the gauge software
determines the source rod depth automatically.
After the count time has elapsed, the gauge displays the measurement results in a series of three screens, Use the up and down arrows to scroll through the various screens.
%Gmb= ###.# WD= ###.# M= ##.# %M= ##.## %Voids= ###.#
Model 3440 4–29
Page 53
 
 
Voidless
WD
1100%Voids
Lat: +hh mm ss.ss Lng: -hh mm ss.ss
where:
%Gmb = percent of laboratory bulk density
WD = wet density
M = moisture value
%M = percent moisture
(displayed only when enabled)
Lat = latitude
Lng = longitude
NOTE
The latitude and longitude display, showing the location of the measurement, is available only on Model 3440 gauges equipped with the optional GPS and is shown only when it is enabled.
The latitude and longitude values denote the quality of the location fix. If WAAS information is available during a gauge measurement, the latitude and longitude will be displayed to the nearest hundredth (1/100) of a second.
If a GPS location is determined, but the WAAS information is unavailable, the latitude and longitude will be displayed to the nearest tenth (1/10) of a second.
4–30
Page 54
99..
RReeccaallll
If the GPS receiver cannot determine a location, the latitude and longitude will be denoted as 0. For more information on GPS accuracy, see Appendix H.
If a project is active (see Error! Reference source not found.) and the Auto-Store function (see page 8–12) is enabled, press
ESC or ENTER/START to continue. For each measurement, the gauge can store a location description of up to 12 characters, as well as a note of up to 15 characters. Follow the prompts to enter location information and/or a note.
If a project is active but the Auto-Store function is not enabled:
Press STORE to store the results. Follow the prompts to
enter location information and/or notes. For more information on storing results manually, see page 8–14.
Press ESC to return to the Ready screen without storing
the results. Note that, until another measurement has been taken, the results can be recalled as described on page 4–31 and stored later.
Lift the gauge from the test site by the source rod handle. This returns the source rod to the SAFE position. When not taking readings, always keep the source rod in the SAFE position.
To view the results of the most recent measurement, press the RECALL key from the Ready screen. The Recall function can also be used to view the gauge counts from the most recent
measurement. To return to the Ready screen, press the ENTER/START key.
NOTE

The RECALL key is active only when the screen is displayed.

Model 3440 4–31
Ready
Page 55
CChhaapptteerr 55:: SSeettuupp M
Meennuu

This chapter covers the following topics and tasks:

Overview of the Setup menu Taking a stat test Taking a drift test Using the Nomograph function Using the Precision function Overview of optional features
Model 3440 5–1
Page 56
SSeettuupp MMeennuu
The gauge software groups most of the setup features into one menu. To access the Setup menu, press the SETUP key. The gauge displays:
-Setup-
1. Count Time
2. Set Units
3. Depth Mode
-Setup-
4. Stat Test
5. Drift Test
6. Nomograph
-Setup-
7. Precision
8. Options
9. Battery Status
-Setup- .0-% Voids (soil)
NOTE
The SETUP key is active only when the is displayed.
Use the arrows keys to scroll through the menu screens. To select a menu option, use the number key that corresponds to that option. The remainder of this section provides details on the functions available from the Setup menu.
5–2
Ready
screen
Page 57
SSttaatt TTeesstt

Count Time

The gauge provides three different count times for taking measurements. To change the count time, see page 3–8.

Set Units

The gauge can display measurement results in either U.S. units (pcf) or metric (SI) units (kg/m3 or g/cm3). To change the units, see page 3–9.

Depth Mode

The Model 3440 gauge offers two depth modes: Automatic and Manual. The Depth Mode function allows the operator to set the
depth mode, as described on page 3–9.

Erratic readings, or readings that seem to fluctuate, may indicate a problem with the gauge. If the readings are suspect, perform a stat test, or statistical stability test, to validate the normal operation of the gauge.

A stat test consists of twenty 1-minute counts. From the twenty counts, the gauge calculates the standard deviation. This standard deviation is compared to a theoretical standard deviation value. Ideally, this ratio should be 0.25, with acceptable limits from 0.17 to 0.33.
The gauge is considered unstable if the ratio is outside these limits and the stat test will fail. If the stat test fails, ensure that the gauge setup and testing was conducted correctly, and take an additional test. If the second test fails, contact the nearest Troxler service center for assistance.
For a list of Troxler and authorized Troxler service centers, refer to page ii of this manual or visit the Troxler website at:
www.troxlerlabs.com/services.
Model 3440 5–3
Page 58
To access the Stat Test function, press 4 at the Setup menu. The gauge displays the Stat Test menu:
1. Take STAT Test
2. Review STAT Test
3. Print STAT Test <ESC> to Exit
To select a menu option, press the corresponding numeric key or press ESC to return to the Setup menu.

Taking a Stat Test

Choose an area free of other nuclear gauges or radioactive sources. Place the gauge on the reference standard block as shown in Figure 9 on page 4–18.
To take a new stat test, press 1 at the Stat Test menu shown above. The gauge prompts the operator to place the gauge on the reference standard block with the source rod in the SAFE (shielded) position. Ensure that the gauge is properly positioned and press the ENTER/START key.
The gauge displays the progress of the stat test (twenty 1­minute counts). Upon completion of the counts, the gauge displays the results of the density stat test, including an indication of whether the test passed or failed:
Density Stat Test Avg. Counts: #### R: #.### (PASS) <ENTER> for Moist.
Press ENTER/START to view the results of the moisture stat test. Follow the prompts to scroll through the results.
5–4
Page 59

Reviewing the Stat Test

To review the results of the last stat test, press 2 at the Stat Test menu shown on page 5–3. The gauge displays the results of
the density stat test as shown above. Press ENTER/START to view the results of the moisture stat test. Follow the prompts to scroll through the results.

Printing the Stat Test

To print the results of the last stat test to a serial printer or
computer via the gauge’s 9-pin serial port, press 3 at the Stat Test menu shown on page 5–3. The gauge prompts the operator
to connect the printer to the gauge.
Connect the serial cable to the printer or computer serial port. Press ENTER/START. The gauge prints or uploads the stat test data and returns to the Stat Test menu.
NOTE
You can purchase a serial cable from Troxler; contact your representative to order part number 113128.
Model 3440 5–5
Page 60
DDrriifftt TTeesstt

If the gauge passes the stat test, but shows long-term drift between measurements, perform a drift test to check the long­term drift of the gauge. A drift test consists of five counts taken three to eight hours after a stat test with no movement of the gauge between tests.

The gauge sets the pass/fail limits based on the percent difference between the average of the stat test and drift test results. If the percent difference exceeds 0.5 percent for density counts or 1 percent for moisture counts, then the drift test fails.
If the drift test fails, ensure that the gauge setup and testing were conducted correctly, and take an additional test. If the second test fails, contact the nearest Troxler service center for assistance.
For a list of Troxler and authorized Troxler service centers, refer to page ii of this manual or visit the Troxler website at:
www.troxlerlabs.com/services.
NOTE
The drift test consists of five 4-minute counts, whereas the stat test consists of twenty 1-minute counts. Therefore, each test takes approximately 20 minutes to conduct.
DO NOT turn the gauge off between a stat test and a drift test.
DO NOT move the gauge between the stat and drift tests to eliminate possible failure due to positioning changes.
5–6
Page 61
To access the Drift Test function, press 5 at the Setup menu. The gauge displays the Drift Test menu:
1. Take Drift Test
2. Review Drift Test
3. Print Drift Test <ESC> to Exit
To select a menu option, press the corresponding numeric key or press ESC to return to the Setup menu.

Taking a Drift Test

To take a new drift test, press 1 at the Drift Test menu. The gauge prompts the operator to place the gauge on the reference standard block with the source rod in the SAFE (shielded) position. Ensure that the gauge is properly positioned and press the ENTER/START key.
NOTE
If it has been less than three hours or more than eight hours since the last stat test, the gauge displays an error message. Press ENTER/START to return to the
Setup
The gauge displays the progress of the drift test (five 4-minute counts). Upon completion of the counts, the gauge displays the results of the density drift test, including an indication of whether the test passed or failed:
Press ENTER/START to view the results of the moisture drift test. Follow the prompts to scroll through the results.
Model 3440 5–7
menu.
Density Drift Test Avg. Counts: #### R: #.### (Pass) <ENTER> for Moist.
Page 62

Reviewing the Drift Test

To review the results of the drift stat test, press 2 at the Drift Test menu. The gauge displays the results of the density drift
test. Press ENTER/START to view the results of the moisture drift
test. Follow the prompts to scroll through the results.

Printing the Drift Test

To print the results of the last drift test to a serial printer or
computer via the gauge’s 9-pin serial port, press 3 at the Drift Test menu. The gauge prompts the operator to connect the
printer to the gauge.
Connect the serial cable to the printer or computer serial port. Press ENTER/START. The gauge prints or uploads the drift test data and returns to the Drift Test menu.
NOTE
You can purchase a serial cable from Troxler; contact your representative to order part number 113128.
5–8
Page 63
NNoommooggrraapphh

In some cases, the gauge may be used to determine the density of thin asphalt overlays. This measurement may be performed with the gauge in backscatter mode and using the Nomograph method of density measurement. It should be noted that this method is not as accurate as a true thin-layer gauge. However, this method may produce satisfactory results under many conditions.

When a nuclear gauge is used in backscatter mode on overlays under 3 in. (7.5 cm), several effects must be overcome to produce an accurate reading. With most gauges, the primary problem is the result of photons from the source penetrating deeper than 3 in. (7.5 cm) and scattering back to the gauge. These backscattered photons from the underlying material will adversely influence the reading.
Obtaining an accurate overlay density with the Nomograph method requires that the density of the bottom layer and the thickness of the top layer be determined. The simplest method of determining the density of the bottom layer is to take a nuclear gauge measurement prior to applying the top layer or overlay. With the overlay applied and compacted, the depth of the layer should be determined. At this time, the gauge may be used to calculate the overlay layer density.
To access the Nomograph function, press 6 at the Setup menu. The gauge displays:
Nomograph: OFF
1. Enable
2. Disable
3. Chg/View Data
From this menu, the operator may enable, disable, or change the Nomograph function, as described in the following sections.
Model 3440 5–9
Page 64

Enable Nomograph

To enable the Nomograph function, press 1 at the Nomograph menu. The gauge enables the function, displays a brief confirmation message, and returns to the Setup menu.

Disable Nomograph

To disable the Nomograph function, press 2 at the Nomograph menu. The gauge disables the function, displays a brief confirmation message, and returns to the Setup menu.

Change/View Nomograph Data

To change or view the Nomograph data, press 3 at the Nomograph menu. The gauge displays:
Thickness: #.## in Density: ##.# pcf Do You Want to Change?
To return to the Setup menu without changing the
Nomograph data, press NO.
To change the Nomograph data, press YES. The gauge
displays:
Select Method of Entering Density
1. Keypad
2. Measure
The wet density of the underlying or base material may be entered either manually using the keypad or by using the gauge to record actual measurements.
5–10
Page 65
Entering Density Using the Keypad
To enter the density using the keypad, press 1 at the Select Method of Entering Density display. The gauge displays:
Overlay Thickness
#.## in
Input and <ENTER>
Enter the thickness of the overlay (0–10 in.) and press ENTER/START. The gauge displays:
Bottom Density
#.# pcf
Input and <ENTER>
Enter the wet density of the bottom layer. The gauge enables the Nomograph function using the entered values, displays a brief confirmation message, and returns to the Setup menu.
Entering Density Using Gauge Measurements
Bottom density values may be obtained by using the gauge to record up to 20 actual measurements. To enter the density
using this method, press 2 at the Select Method of Entering Density menu. The gauge displays:
# of Readings to
Average (1-20)?
#
Input and <ENTER>
Model 3440 5–11
Page 66
Enter the number of readings to be taken and averaged, then press ENTER/START. The gauge displays:
Readings: # Time: # m
Place Rod to BS &
Press <START>
Prepare the site for measurement as described on page 4–22. Position the gauge and press ENTER/START. The gauge displays:
Nomograph Reading: 1 Depth: BS Time: ## s
After counting down to zero, the gauge displays:
Reading: 1 WD= ### pcf
Move Gauge and
Press <START>
If more than one reading is to be taken, move the gauge to the next location and press ENTER/START. The gauge will repeat the above sequence for each reading. When all the readings are
completed, the display will be:
Average of #
Redings ### pcf
Press <ENTER>
Press ENTER/START to continue. The gauge enables the Nomograph function, displays a brief confirmation message, and returns to the Setup menu.
5–12
Page 67

Taking Nomograph Measurements

When the Nomograph function is enabled, the gauge can be used to take thin-layer overlay measurements. Press
ENTER/START to begin the test. The gauge displays:
Depth: BS in
( Nomograph )
Time: xx s
After counting down to zero, the display is:
%Gmb= #### W= ##
( Nomograph)
This test may be stored as any other test measurement. The recall function and/or printout will show that the Nomograph function was used.
NOTE
The
Nomograph
taking any measurements not requiring this function.
Model 3440 5–13
function should be disabled before
Page 68
PPrreecciissiioonn
The gauge can produce test results with precision limits as low as 0.1 pcf (1.6 kg/m3) under certain conditions. The Precision function is used to determine the count time required to achieve the precision entered by the operator. If the precision requested is within range and the time required to calculate the required result does not exceed 60 minutes, the following procedure can usually produce the required results.
To execute the Precision function, first ensure that the gauge is in the correct mode: Soil or Asphalt. Press 7 from the Setup menu. The gauge displays:

Precision

#.# pcf
<ENTER> to Continue
Enter the desired precision and press ENTER/START. The gauge displays:
Index: 0 in
<ENTER> to Select
<0> for BS
If the gauge is in the correct position, press ENTER/START. The gauge displays:
Depth: # in
1 min. count
<ENTER> to Continue
5–14
Page 69
Press ENTER/START. The gauge displays:
Precision Mode Depth: # in Time: ## s
# min. count
After counting down to zero, the display is:
## min. to
Reach precision.
<ESC> to Abort
<ENTER> to Continue
To abort this operation and return to the Setup menu, press
ESC. To continue with the Precision function, press ENTER/START. After counting down, the display is:
(For Soil mode)
%PR= ###.# DD= ###.# WD= ###.# M= ##.# %M= ##.#
(For Asphalt mode)
%Gmb= ###.# WD= ###.# M= ##.# %M= ##.# %Voids= ###.#
NOTE
If the required precision cannot be reached in 60 minutes, the gauge halts the count and displays a warning message.
Model 3440 5–15
Page 70
OOppttiioonnss
The Model 3440 gauge offers the following optional features that may be added to the gauge. These features can be toggled
on and off from the Options menu, accessed by pressing 8 from the Setup menu.
-Options-
1. Ext. Beeper – OFF
2. GPS – OFFF

Remote Start Keypad

If the optional remote start keypad is installed on the 3440 there will be START and ESC keys at the top of the triangular extrusion near the handle. Use these keys in the same way they would be used on the typical keypad. START will begin a reading and ESC will clear the screen to return to the Ready screen.

External Beeper

The Model 3440 can be equipped with an external beeper. The external beeper alerts the operator when a measurement count is completed and is easily heard on noisy jobsites.

If available, the external port is visible near the triangular tower where the source rod goes into the gauge body. The beeper cover should be turned (closed) in dusty environments to reduce particles that may enter the gauge base. This can be toggled off if desired under the Options menu.

Languages

The Model 3440 is available in English, French and Spanish. This option is typically chosen at the time of purchase and enabled at the factory. If you are interested in the Spanish or French software, keypad, and operator manual, please contact your Troxler representative to discuss this option.
5–16
Page 71

Backlit Keypad

This option allows the keypad to be seen more easily in dimly lit environments. To activate the keypad backlight, press the
Light key. Using the backlight reduces battery life, so it is important to turn it when not in use.

GPS Option

The Model 3440 gauge can also be equipped with an optional global positioning system (GPS) receiver. The GPS receiver enables the gauge to store precise GPS coordinates, along with the standard date and time stamp, for each measurement.
To toggle the GPS function on or off, press 2 on the Options menu shown above.
NOTE
When the symbol g appears in the upper right of the screen when the gauge is receiving GPS satellite signals.
GPS
option is installed and enabled, the
Ready
NOTE
If a Model 3440 equipped with the GPS option 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 H for more information). If the GPS does not initialize within 45 minutes, contact your Troxler representative.
Model 3440 5–17
Page 72
PPeerrcceenntt AAiirr VVooiiddss ((SSooiill MMooddee))

Battery Status

The Battery Status function displays the voltage of the NiMH batteries. To access this function, press 9 at the Setup menu.
For more information, see the Battery Status section on page C–
11.
The gauge uses the specific gravity function to calculate percent air voids and void ratio in Soil mode only. The % Voids function allows the operator to enter the specific gravity of a material and disable or enable the percent air voids display.
NOTE
To display percent air voids in voidless density target value (see the section on page 6–3).
To access the % Voids function, press . 0 at the Setup menu. The gauge displays:
%Voids (soil): OFF SG: #.##
1. Enable 2. Disable
3. Change Target
The current specific gravity (default 2.70) is shown on the second line of the display. For optimum results, use a specific gravity value that is appropriate for the material being measured.
Asphalt
mode, enter a
Target Values
To enable the current specific gravity value, press 1. The
gauge enables the value, displays a brief confirmation message, and returns to the Setup menu.
To disable the current specific gravity, press 2. The gauge
disables the value, displays a brief confirmation message, and then returns to the Setup menu.
5–18
Page 73
To enter a new specific gravity value, press 3. The gauge
prompts the operator for a new specific gravity. If the displayed specific gravity is acceptable, press the
ENTER/START key. To change the value, use the numeric keys to do so, then press the ENTER/START key. In either
case, the gauge enables the value, displays a brief confirmation message, and then returns to the Setup menu.
Model 3440 5–19
Page 74
CChhaapptteerr 66:: TTaarrggeett M
Meennuu
This chapter covers the following topics and tasks:
Overview of the Target menu Enabling and disabling the target value Storing a new target value
Model 3440 6–1
Page 75
TTaarrggeett MMeennuu
The Model 3440 gauge uses operator-specified target values to determine the percent compaction after determining the density of the test material. Target values include Gmb (Marshall), Proctor, and Gmm (Voidless density) values.
The gauge uses the Marshall and/or voidless density values to calculate the compaction level in the Asphalt mode. The voidless density is the maximum theoretical density for the test material as obtained in laboratory tests. When enabled, the voidless density is used to determine the percent air voids.
The gauge uses the Proctor value to calculate the compaction level when taking measurements in the Soil mode.
The Target function enables you to enter and store a new target value, as well as enable or disable a target value stored in memory.
To access the Target menu, press the TARGET key. The gauge displays:
-Target-
1. GMB(Marshall)
2. Proctor
3. Gmm(Voidless)
NOTE
The TARGET key is active only when the screen is displayed.
To edit a Marshall, Proctor, or voidless density value, press the number key that corresponds to the target value.
6–2
Ready
Page 76
TTaarrggeett VVaalluueess
NOTE
Because the menus for managing the Gmb (Marshall), Proctor, and Gmm (Voidless density) values are essentially the same, the following sections describe only the
To edit a Marshall, Proctor, or voidless density value, press the number key that corresponds to that target value, as shown on the Target menu. For example, to edit the Gmb (Marshall) value,
press 1.
The gauge displays the selected Target Value menu. The menu for the Gmb (Marshall) value is:
The Target Value menu shows the target values stored in memory (if any) and the New and Disable options.
Gmb (Marshall)
Gmb: ##.# pcf 1: ##.# 2: ##.# 3: ##.# 4: ##.# 5: New 6: Disable
menu.

Enable a Target Value

To enable a target value displayed on the Target Value menu, press the corresponding number key. The gauge enables the target value and returns to the Ready screen.
Model 3440 6–3
Page 77

Store a New Target Value

To store a new target value, press 5 at the Target Value menu.
At the prompt, use the number keys to enter the target value (between 20.0 and 200.0). Press the ENTER/START key. The gauge displays:
Gmb: ##.# pcf
Save This Value
For Later Use?
To enable and use this value without storing it for later use,
press NO key. The gauge enables the value and returns to the Ready screen.
To enable the value and store it for later use, press the YES
key. The gauge displays:
Select Memory Cell: 1: ##.# 2: ##.# 3: ##.# 4: ##.#
Press # to Select
The gauge can store the value in one of four memory cells. Storing a new value in a cell erases the old value. Use the number keys to store the value. This will replace any stored values that were previously associated with the memory cell. The gauge stores the target value, enables it for use, and returns to the Ready screen.

Disable the Target Value

To disable the target value, press 6 at the Target Value menu. The gauge disables the target value and returns to the Ready screen.
NOTE
6–4
Page 78
The gauge can be used with the target value disabled. In this case, no percent compaction value will be displayed.
Model 3440 6–5
Page 79
CChhaapptteerr 77:: CCaalliibbrraattiioonn OOffffsseettss

This chapter covers the following topics and tasks:

Overview of the offset menu Enabling density, moisture, and trench offsets
Model 3440 7–1
Page 80
AAbboouutt OOffffsseettss
The Model 3440 is factory-calibrated for soils, asphalt, and concrete with an approximate density range of 1100 to 2700 kg/m3 (70 to 170 pcf). With an offset, you can adjust the gauge readings to correlate to traditional laboratory methods, such as core samples. The Model 3440 gauge provides three offsets: density, moisture, and trench.

NOTE

When an offset has been enabled, all future readings will automatically be adjusted with the offset factor regardless of the test site. It is very important that you disable the offset function prior to taking readings on materials that do not require an offset. Offsets are disabled if the gauge is turned off for more than 10 seconds.
Density offsets are common when the material being measured is outside the range of 70 to 170 pcf (1121 to 2723 kg/m3) or if the material composition varies from average soil/asphalt on which the factory calibration is based.
Moisture offsets are required for accurate measurements if the material to be measured contains elements that can cause the gauge to yield erroneous results. A negative offset is required if the material to be measured is high in hydrogenous components such as cement, gypsum, coal, or lime. A positive offset is required if the material is high in neutron-absorbing material such as boron or cadmium.
The Model 3440 gauge requires a trench offset if measurements are to be taken inside a trench or close to vertical structures. Vertical structures can scatter neutrons and gamma photons back to the gauge, increasing the possibility of moisture or density errors due to high counts.
NOTE
7–2
Page 81
When the gauge is turned off, all offsets are disabled.
To access the Offset menu, press OFFSET. The gauge displays:
-Offset-
1. Density OFF
2. Moisture OFF
3. Trench OFF
NOTE
The OFFSET key is active only when the
Ready
screen is displayed.
To select a menu option, press the corresponding number key. The remainder of this chapter details the functions available from the Offset menu.
Model 3440 7–3
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DDeennssiittyy OOffffsseett
To access the Density Offset functions, press 1 at the Offset menu.

DENSITY OFFSET

#.# pcf
1. Enable 2. Disable
3. Change Offset
The gauge displays the current density offset on the second line.
To enable the displayed density offset, press 1. The gauge
enables the offset, displays a brief confirmation message, and returns to the Ready screen.
To disable the density offset, press 2. The gauge disables
the offset, displays a brief confirmation message, and returns to the Ready screen.
NOTE
The density offset is also disabled when the gauge is turned off.
To enter a new density offset, press 3. The gauge prompts
for the density offset as shown:
DENSITY OFFSET
#.# pcf
Select (+/-)
Input and <ENTER>
To change the offset, select the offset sign (positive or negative), enter the density offset, and press ENTER/START. The gauge enables the new density offset and returns to the Ready screen.
7–4
Page 83
MMooiissttuurree OOffffsseett
The moisture offset (k) is determined by comparing the moisture of a laboratory sample with the gauge moisture reading. The gauge allows the operator to enter the moisture offset manually, or to have the gauge derive the moisture offset. The gauge can store up to four moisture offsets.
To access the Moisture Offset menu, press 2 at the Offset menu shown on page 7–2. The gauge displays:
1: #.## 2: #.## 3: #.## 4: #.## 5: New 6: Disable
The Moisture Offset menu shows the moisture offset values stored in memory (if any) and the New and Disable options.

Moisture Offset

Enable a Stored Moisture Offset

To enable a moisture offset value displayed on the Moisture Offset menu, press the number key that corresponds to that
value. The gauge enables the moisture offset value and returns to the Ready screen.

Enter a New Moisture Offset

A new moisture offset may be entered either manually using the keypad or by using the gauge to record actual measurements, then entering the true moisture value as determined by an alternate method. To enter and enable a new moisture offset
value, press 5 at the Moisture Offset menu shown above. The gauge displays:
Select Offset Source
1. Manual Entry
2. Gauge Derived
Model 3440 7–5
Page 84
Enter a Moisture Offset (Manual Entry)
To enter a new moisture value manually via the keypad, first determine the true moisture content of a sample taken at the measurement site using standard laboratory methods (for example, oven drying, and so on).
Take multiple readings at or near the location where the sample was removed and record the moisture measurements. Calculate the average moisture of the readings to determine the gauge moisture content.
To enter the moisture offset manually, press 1 at the Select
Offset Source menu shown on page 7–5. The gauge request the true moisture value as shown:
True Moisture %
#.##
Press <ENTER>
Enter the true moisture value and press ENTER/START. The gauge requests the gauge moisture value as shown:
Gauge Moisture %
#.##
Press <ENTER>
Enter the gauge moisture value and press ENTER/START. The gauge calculates and displays the moisture offset (k) as shown:
K: #.## Save This Value For Later Use?
To enable and use this moisture offset without storing it for
later use, press NO. The gauge enables the offset and returns to the Ready screen.
7–6
Page 85
To enable the moisture offset and store it for later use, press
YES. The gauge displays:
Select Memory Cell: 1: #.## 2: #.## 3: #.## 4: #.##
Press # to Select
The gauge can store the value in one of four memory cells. Storing a new value in a cell erases the old value. Use the number keys to store the value. This will replace any stored values that were previously associated with the memory cell. The gauge stores the moisture offset, enables it for use, and returns to the Ready screen.
Gauge-Derived Moisture Offset
To allow the gauge to derive the moisture offset, you must determine the true moisture content of a sample taken at the measurement site using standard laboratory methods (for example, oven drying, and so on), then take readings with the gauge.
To use this method of determining the moisture offset, press 2 at the Select Offset Source menu shown on page 7–5. The gauge request the true moisture value as shown:
True Moisture %
##.#
Press <ENTER>
Enter the true moisture value and press ENTER/START. The gauge displays:
Place gauge on soil,
lower rod and
press any key
Model 3440 7–7
Page 86
As prompted, place the gauge on the measurement site and press any key. The gauge takes a 240-second count, during which it displays the progress of the count. Upon completion, the gauge calculates and displays the moisture offset (k) as shown:
K: ##.## Save This Value For Later Use?
To enable and use this moisture offset without storing it for
later use, press NO. The gauge enables the offset and returns to the Ready screen.
To enable the moisture offset and store it for later use, press
YES. The gauge displays:
Select Memory Cell: 1: #.## 2: #.## 3: #.## 4: #.##
Press # to Select
The gauge can store the value in one of four memory cells. Storing a new value in a cell erases the old value. Use the number keys to store the value. This will replace any stored values that were previously associated with the memory cell. The gauge stores the moisture offset, enables it for use, and returns to the Ready screen.

Disable the Moisture Offset

To disable the moisture offset value, press 6 at the Moisture Offset menu. The gauge disables the moisture offset and returns to the Ready screen.
NOTE
The moisture offset is also disabled when the gauge is turned off.
7–8
Page 87
TTrreenncchh OOffffsseett
To use the gauge in a trench or within 0.6 m (2 ft.) of a large vertical surface, first perform a trench offset. The trench offset adjusts all moisture measurements and density measurements from backscatter to 4 inches. For direct transmission measurements over 4 inches deep, the gauge will only adjust the moisture measurements. In the displays shown below, M refers to trench moisture offset; D refers to trench density offset values.
NOTE
Before determining a new trench offset, ensure that a standard count has been performed recently the trench.
To access the Trench Offset menu, press 3 at the Offset menu. The gauge displays:

Trench Offset

M: # D: #
1. Enable 2. Disable
3. Change Offset
The gauge displays the current offset values on the second line.
outside
To enable the displayed trench offset, press 1. The gauge
enables the offset, displays a brief confirmation message, and returns to the Ready screen.
To disable the trench offset, press 2. The gauge disables
the offset, displays a brief confirmation message, and returns to the Ready screen.
NOTE
The trench offset is also disabled when the gauge is turned off.
Model 3440 7–9
Page 88
To enter a new trench offset, press 3. The gauge displays:
Place Gauge in
trench on Std.
block in SAFE Pos.
Press <START>
Select a position inside the trench and the same distance from the wall as the test measurements. Place the gauge on the standard block in this position, set the source rod to the SAFE
position, and press ENTER/START.
The gauge performs a trench count, calculates the trench moisture and density offset values, enables the trench offset, and returns to the Ready screen.
7–10
Page 89
CChhaapptteerr 88:: PPrroojjeecctt DDaattaa
This chapter covers the following topics and tasks:
Overview of the Project menu Selecting and viewing projects Creating new projects Erasing projects Outputting and printing projects Deactivating projects Using the Auto-Store feature Using the Manual Store feature
Model 3440 8–1
Page 90
PPrroojjeecctt MMeennuu
The gauge can store approximately 750 readings. The Project and Store functions allow handling of measurement data. Measurement results are stored in files (memory locations) called projects, which are named by the operator.
Projects are managed using the Projects menu. From this menu, the operator can select a project (make an existing project active so that additional data may be added to it), view project data, create a new project, erase projects, output project data to the selected destination (via the serial or USB port), deactivate a project, and enable the Auto-Store function.
To access the Projects menu, press PROJ. The gauge displays:
-Projects-
1. Select
2. View
3. Create
-Projects-
4. Erase
5. Output Project
6. Set Output Dest.
-Projects-
7. Deactivate
8. Auto-Store
NOTE
The PROJ key is active only when the is displayed.
Use the arrow keys to scroll through the menu options. Use the numeric keys to select a menu option. Press ESC to return to the Ready screen.
8–2
Ready
screen
Page 91
SSeelleecctt aa PPrroojjeecctt
To select an existing project, press 1 at the Projects menu shown on page 8–2.
If no projects have been created, the gauge displays the
error message:
No projects are
Stored.
Press any key to
continue
Press any key to return to the Projects menu, and create a project as described on page 8–5.
If a project has been created, the gauge displays:
Prj: XXXXXX
Arrows for Scroll
<ENTER> to Select
Use the arrow keys to scroll through the names of the existing projects. When the desired project is displayed, press
ENTER/START to select it as active. The gauge sets the selected project as active, briefly displays a confirmation message, and returns to the Projects menu.
Model 3440 8–3
Page 92
VViieeww PPrroojjeecctt DDaattaa
The gauge offers two methods of viewing data. You can either view the last measurement results using the Recall function (see page 4–31), or any measurement results, including project notes, stored in a project file using the View function available from the Projects menu.
To view data stored in a project file, press 2 from the Projects menu. The gauge displays:
Prj: XXXXXX 04/08/14 04:08p Rec: # UID: XXX
<ENTER> to Select
Use the arrow keys to scroll through the project names. Press ENTER/START when the gauge displays the desired project name. If any measurement data has been stored in the selected
project file, the gauge displays the data for the first measurement.
Six screens of information are displayed for each measurement. Use the up and down arrows to scroll through the project data.
Press the ESC key to return to the project selection screen shown above.
8–4
Page 93
CCrreeaattee aa PPrroojjeecctt
To create a new project, press 3 at the Projects menu. The gauge displays:
Project Name A _
Press the ALPHA LOCK key to enable the alphabetic keys on the gauge. When the alphabetic keys are enabled, the symbol A appears in the upper right of the display, as shown above.
Enter the project name (up to twelve alphanumeric characters) and press the ENTER/START key. The gauge displays:
To save the new project name without activating it, press
NO. The gauge saves the new project, briefly displays the name of the active project (if any), and returns to the
Projects menu.
<ALPHA> for Letters
<ENTER> to EXIT
Make Project
XXX
Active?
<Yes> or <NO>
To save the new project name and activate the project, press
YES. The gauge enables the new project, displays a brief confirmation message, and returns to the Projects menu.
Model 3440 8–5
Page 94
EErraassee PPrroojjeeccttss
To erase either a selected project file or all project files, press 4 at the Projects menu. The gauge displays the Erase menu:
To erase a single project, press 1. If more than one project
has been created, the gauge displays:
Use the arrow keys to scroll through the project names displayed on the first line. When the gauge displays the
desired project, press ENTER/START. At the Are you sure? prompt, press the YES key. The gauge erases the
project and returns to the Projects menu.
Erase:
1. One Project
2. All Projects
Press # to Select
Prj: XXXXXX
Arrows for Scroll
<ENTER> to Select
To erase all projects, press 2 at the Erase menu. At the Are
You Sure? prompt, press the YES key. The gauge erases all the projects and returns to the Projects menu.
8–6
Page 95
OOuuttppuutt PPrroojjeecctt

The Output Project function within the Projects menu allows the operator to print or upload project data stored in the gauge to a computer or serial printer connected to the serial port, or to a USB printer or flash drive connected to the USB port. To select the output destination, see page 8–11.

NOTE
The USB port is included only on Model 3440 gauges.

Uploading or Printing Project Data

You can upload project data to a computer via the serial port using Troxler’s Gauge Download Program, available at:
www.troxlerlabs.com/downloads/software/gaugedownload.zip
You can also upload the data using Windows® HyperTerminal or
TerraTerm. See the “Downloading Data” procedure at
www.troxlerlabs.com/documents for HyperTerminal instructions.
To output project data via the 9-pin serial port, connect a serial cable to the port. An optional serial cable, P/N 113128, is available from Troxler. Connect the serial cable to the computer’s COM port (or a printer’s serial port).
To output project data to a USB printer via the USB port, connect a USB cable to the USB port and connect the cable to the USB printer. To output project data to a USB flash drive, connect the flash drive directly to the USB port.
NOTE
The opening for the USB port will accept a device with maximum dimensions of 10 mm (0.40 in.) high by 29 mm (0.79 in.) wide.
A list of compatible USB devices is available at:
www.troxlerlabs.com/documents
Model 3440 8–7
Page 96
At the Projects menu, press 5. The gauge request the output format as shown:
Output:
1. 32 Column Report
2. Spreadsheet
Press # to Select
The 32 Column Report option is formatted for a standard printer width. This format is recommended when outputting the data to a printer. The Spreadsheet option is sent in a comma-delimited format, which can then be imported easily into a spreadsheet program, such as Microsoft Excel. Table 2 on page 8–10 defines the information contained in each column of the spreadsheet.
Press 1 or 2 to select the desired output format. The gauge displays:
Output:
1. One Project
2. All Projects
Press # to Select
From this menu, the gauge can print (or upload) either a single project or all projects.
To output a single project, press 1. The gauge displays:
Prj: XXXXXX
Arrows for Scroll
<ENTER> to Select
Use the arrow keys to scroll through the project names displayed on the first line. When the gauge displays the
desired project, press ENTER/START.
To output the data from all projects, press 2.
8–8
Page 97
The gauge prints (or uploads) the selected project(s) and returns to the Projects menu. Press the ESC key to return to the Ready screen.
Model 3440 8–9
Page 98
A
Record Number
U
Center Line Distance
B
Time and Date
V
Gmb Target
C
Project Name
W
Gmm Target
D
User
X
Proctor Target
E
Mode:
Y
Specific Gravity
F
Units
Z
Bottom Layer Density
G
Location
AA
Top Layer Thickness
H
Notes
AB
Density Offset
I
Wet Density
AC
Moisture Offset
J
Dry Density
AD
Trench Density Offset
K
Moisture
AE
Trench Moisture Offset
L
% Moisture
AF
Model Number:
M
%Gmb
AG
Serial Number
N
%Voids
AH
Depth
O
%Proctor
AI
Time (Count Time)
P
%Voids – Soil
AJ
Density Standard Count
Q
Voids Ratio
AK
Moisture Standard Count
R
Latitude
AL
Density Count
S
Longitude
AM
Moisture Count
T
Center Line Side
Table 2. Spreadsheet Column Definitions
8–10
Page 99
SSeett OOuuttppuutt DDeessttiinnaattiioonn
DDeeaaccttiivvaattee aa PPrroojjeecctt
As described on page 8–7, the gauge can print (or upload) project data to a computer or serial printer connected to the serial port, or to a USB printer or flash drive connected to the USB port.
NOTE
The USB port is included only on Model 3440 gauges. A list of USB devices that are compatible with the gauge is available at: www.troxlerlabs.com/documents
To select the output destination, press 6 at the Projects menu. The gauge displays:
Output Destination:
1. Serial Port
2. USB Printer- 3440
3. Thumb Drive- 3440
Use the numeric keys to select the desired output destination. The gauge enables the selected option, displays a brief confirmation message, and returns to the Projects menu. Press
ESC to return to the Ready screen.
To deactivate the current project without selecting a different one as active, press 7 at the Projects menu. The gauge deactivates the current project, displays a brief confirmation message, and returns to the Projects menu. Press ESC to return to the Ready screen.
Model 3440 8–11
Page 100
AAuuttoo--SSttoorree
The Auto-Store function automatically stores sample data upon completion of a measurement. The data is stored under the active project, using a sequential sample ID number. When a new project is created, the sample ID number for the Auto-Store function starts at 1 and is incremented each time a new measurement is stored automatically or manually.
To access the Auto-Store function, press 8 at the Projects menu shown on page 8–2. The gauge displays:
To return to the Projects menu without changing the Auto-
Store status, press ESC.
 To turn the Auto-Store function on, press 1.
To turn the Auto-Store function off, press 2. The gauge

updates the Auto-Store status, displays a brief confirmation message, and returns to the Projects menu.

Auto-Storage
1. ON
2. OFF
Press # to Select

Active Project Selected

If you attempt to enable the Auto-Store function and a project has been selected as active, the gauge enables the Auto-Store function, briefly displays the confirmation message shown below, and then returns to the Projects menu.
Auto-Storage
Is Now ON Prj: XXX Next Sample # X
8–12
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