Model 3411-B Advanced Control Unit 2–1
2. GAUGE OPERATION
CHAPTER 2
OPERATING THE GAUGE
This chapter explains the basic operation of a Model 3411-B gauge
after it has been retrofitted with a Model 3411-B Advanced Control
Unit (ACU). Instructions for setting gauge parameters, taking the
daily standard count, preparing the test site, positioning the gauge,
and taking moisture and density measurements are included.
CONTENTS
The Keypad................................................................................... 2–2
Turning the Gauge On .................................................................. 2–4
Gauge Parameter Setup................................................................. 2–5
Setting Measurement Units.................................................... 2–5
Setting the Count Time .......................................................... 2–6
Setting the Depth.................................................................... 2–6
Selecting the Mode (Marshall/Proctor).................................. 2–6
Taking the Standard Count........................................................... 2–8
Site Preparation/Gauge Positioning............................................ 2–10
Soil and Base Course Preparation ........................................ 2–10
Asphalt Surface Preparation................................................. 2–12
Taking a Measurement – Soil Mode........................................... 2–13
Taking a Measurement – Asphalt Mode.......................................... 2–16
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