4
5.0 General Operation
5.1 Installing the Batteries
Remove the metal end cap on the meter’s handle with a straight
screw driver. Install two (2) new alkaline AA or LR6 size batteries
with the plus (+) side of both batteries facing into the tube.
Replace the metal end cap with the spring contacting the negative
(-) of the last battery. When it is time to replace the batteries a
low battery symbol ( ) will show on the unit’s display.
5.2 Zero Calibration
With the meter powered on, hold the meter above the ground with
the shaft facing down. Press the
ZERO
button and continue
holding the meter steady and above the ground until the zero
function completes and the LCD displays a “0” value.
The compaction meter should show a zero value when suspended
in air prior to taking a probing with the meter. Temperature
changes, battery voltage changes, and rough handling can cause
shifts in the meter’s zero point. All the above variations are easily
and quickly accounted for when the zero function is complete.
Note:
When the meter tip is placed on the ground the display may
show a value of 5-8 PSI (34 kPa) but will show 0 PSI/kPa when
suspended about the ground. This is correct and due to the weight
of the meter’s head applying force to the shaft.
Before
During
After
Zero
Button
