1–4
GAUGE AND ACCESSORIES
The Troxler 3440-L gauge provides a fast, accurate, and inexpensive way
to find the moisture content and density of construction type materials.
Take a moment to become familiar with the features and controls of the
3440-L, its components, operating principles, safeguards and cautions. Use
Figure 1–1 and the list below to identify the gauge and standard
accessories as they are unpacked.
1. The GAUGE is the portable surface moisture-density gauge
containing the radioactive sources, electronics and rechargeable
battery packs. The gauge serial number appears on the gauge handle
and the reference standard block, as well as on the calibration, source,
and warranty certificates.
2. The REFERENCE STANDARD BLOCK is primarily used to
establish standard counts against which future measurements are
compared. The reference standard block is also an unchanging
reference for long-term stability checks.
3. The SCRAPER PLATE/DRILL ROD GUIDE is used to prepare the
test site. It is used to guide the drill rod in preparing a hole for the
source rod for direct transmission measurements.
4. The DRILL ROD is used to drill a hole for direct transmission
measurements. Under no circumstances should the source rod be
used for this purpose.
5. The DRILL ROD EXTRACTION TOOL provides leverage to
remove the drill rod from clays and other materials.
6. Two CHARGER/ADAPTERS are supplied: one for dc (12 volt
negative ground systems) and one for ac.
7. The TRANSPORT CASE is specially fitted for safe transport of the
3440-L and associated parts. The case is water-resistant, but is not
watertight. In case of inclement weather, the case should be protected
with some type of covering to prevent intrusion of rain, etc.
8. OPERATOR’S MANUAL, CALIBRATION DOCUMENTS, and
GAUGE CERTIFICATE
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