12
PL:
Probe Length [
1
(1”),
2
(½
”),
T
urf,
S
hort,
M
edium, or
L
ong rods]
N:
Number of readings included in the Average
A:
Average of all readings taken since meter was
turned on or DELETE/CLR AVG button was
pressed
Note, the internal calibrations are valid for a wide range of
mineral soils. However, for soils that are high in clay, or-
ganic matter or salt, the meter will give values that are high-
er than the actual VWC. In this case, it is recommended that
the meter be operated in relative water content mode (see p.
24) or that a soil
-
specific calibration be developed (see Ap-
pendix 2).
The meter can also be set to give the raw reading if it is set
to
Period
mode. This mode is intended primarily for soil
-
specific calibrations.
-
Push the rods into the soil. When taking a measurement, it
is important that the rods be fully inserted into the soil. If
not, part of the sampling volume will be composed of air
and the reading will be inaccurately low. For the same rea-
son, the probe should be inserted with a steady, downward
pressure. If the rods are wiggled into the soil, air pockets
can be created adjacent to the rods that will result in low
readings. The probe should not be struck with a hammer or
other blunt instrument as this can cause damage to the inter-
nal electronics. Also, care should be taken to ensure the
rods are inserted as parallel to one another as possible. This
will not have a large affect on the reading but will decrease
STNDRD VWC%=35.1
PL=S N015 A=36.3
Sample Data Screen
