NOTE
The Model 4590 reports either dry density or wet density
measurements. For dry density results, a moisture
measurement is required and can be keypad entered or
measured using the provided probe. Additionally, the
moisture measurement can be performed either before or
after the density measurement (default). For wet density
results only, the moisture measurement is typically
disabled. See Sections titled, Moisture Input on page 5–8
and Measurement Order on page 5–9.
1
1
.
.
Prepare the test site and position the gauge as described on
page 4–2.
2
2
.
.
With the source rod in the SAFE position, press 〈START〉.
3
3
.
.
After initialization, follow the instructions on the display.
4
4
.
.
If the Measurement Order Option is set to Gauge First, the
gauge leads you through the procedure described in the
section Taking Density Measurement on page 4–15 and then
leads you through the procedure described in section
Taking a Moisture Measurement on page 4–17.
5
5
.
.
If the Measurement Order Option is set to Moisture First, the
gauge leads you through the procedure described in section
Taking a Moisture Measurement on page 4–17 and then
leads you through the procedure describe in section Taking
Density Measurement on page 4–15.
6
6
.
.
If the Moisture Input option is set to None, the gauge only
performs the procedure describe in section Taking Density
Measurement on page 4–16.
7
7
.
.
When the density measurement is complete and a moisture
reading is accepted from the supplied probe or entered
using the keypad, the gauge displays the results:
WD= xxx.x
M= xxx.x %M=xxx.x
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