18
Warning
Messages
If the meter is unable to successfully measure a soil
compaction profile, it will display one of the following
warning messages and no data will be sent to the data-
logger. In these instances, it is necessary to withdraw
the probe from the soil (if necessary) and hit the
START button to continue using the meter (see Meas-
urement Procedure pg 16).
Warning Messages
The meter cannot begin tak-
ing readings until the probe
senses the tip is at the soil
surface. The meter can
sense a false non-zero depth if the user’s feet are too
close to the shaft, if an object such as a tree or large
plant is near the measurement area or if debris such as
roots, soil or leaf matter is clinging to the shaft.
Start Over
Depth > zero!
If the meter is inserted
faster than the speed al-
lowed by the ASAE stan-
dard (2 inches per 2 sec-
onds), the meter cannot compute the cone index. You
may see this message more often when taking readings
in areas with non-compacted zones beneath strongly
compacted zones.
Start Over
Insertion too fast
11
Calibration/
Calibration/
Calibration/
Calibration/
Battery Change
Battery Change
Battery Change
Battery Change
Calibration
The reading of the meter’s load cell can be recalibrated
with the following procedure.
Note: During the calibration procedure, care must be
taken to ensure that the only force on the load cell is
the weight of the meter itself.
1. Balance the meter in an upright position on a hard sur-
face.
2. Press and hold the START button.
3. With the START button depressed, press and release
the ON button. The LCD will count down from 5 to 1.
4. The meter should now read between 5 and 10 P.S.I.
(35 - 70 Kpa). This reflects the weight of the meter
itself.
Changing the Batteries
To change the batteries, remove the 4 philips-head screws
from the face plate of the meter. Remove the face plate to
access the battery compartment. The meter requires 4
AAA batteries.