Troxler EGauge 4590, Руководство по эксплуатации и инструкции

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The Model 4590 Surface Density Gauge uses the latest
engineering, design, and manufacturing techniques. This gauge
uses a gamma-ray transmission method of measuring the
specific gravity and density of soil and soil aggregate bases.
When the moisture content of the material is known, the gauge
can determine the dry density.
The density measurement method used in the Model 4590 is
based on the scattering and absorption properties of gamma
rays with matter. This gauge uses a 3.3 MBq (90- μCi) cesium -
137 (Cs-137) gamma-ray source and a sodium iodide (NaI)
scintillation gamma ray detector. The gamma ray source is
securely placed at one end of the source rod. The detector is
located inside the gauge housing.
The gamma-ray method also known as the nuclear method of
measuring density of soil and soil-aggregate bases has been
approved by the American Society of Testing and Materials
(ASTM). The Model 4590 gauge complies with ASTM D8167,
Standard Test Method for In-Place Bulk Density of Soil and
Soil-Aggregate by a Low-Activity Nuclear Method (Shallow
Depth).
NOTE
This gauge does not have a backscatter mode;
therefore, it cannot be used on asphalt pavements.
Using the Model 4590 gauge, you can precisely measure
the moisture content and density of construction
materials. The gauge features:
♦
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
remote keypad
, including a
〈 START 〉
and
〈 ESC 〉
key, at
the top of its source rod housing. These keys perform the
same function as the keys on the control panel.