TABLE OF CONTENTS
CHAPTER 1. INTRODUCTION TO THE MODEL 3451
Introduction................................................................................... 1–2
Global Positioning System Accuracy........................................... 1–5
Gauge Parts and Accessories........................................................ 1–8
Unpacking and Inspection .......................................................... 1–11
CHAPTER 2. THEORY OF OPERATION
Density.......................................................................................... 2–2
Moisture........................................................................................ 2–3
Thin Layer .................................................................................... 2–5
Calibration .................................................................................... 2–6
CHAPTER 3. GETTING STARTED
Model 3451 Illustration ................................................................ 3–3
Source Rod Positions.................................................................... 3–5
Before Using the Gauge and PDA................................................ 3–6
Turning the Gauge and PDA On................................................... 3–8
Troxler Menu.............................................................................. 3–10
RoadReader Plus Main Menu..................................................... 3–16
Project Files ................................................................................ 3–19
Status........................................................................................... 3–24
CHAPTER 4. USING THE GAUGE
Taking a Standard Count.............................................................. 4–2
Preparing a Test Site..................................................................... 4–7
Taking Measurements................................................................. 4–10
CHAPTER 5. SETUP AND TARGET MENUS
Gauge Setup Menu........................................................................ 5–2
Target.......................................................................................... 5–14
TABLE OF CONTENTS (Continued)
CHAPTER 6. ADJUSTING MEASUREMENTS
Calibration Offset..........................................................................6–2
Special Calibration......................................................................6–14
