24
Adjusting and Measuring
SONO WZ
Translation of the Original Instructions for Use
As the first parameter, the raw density
can be adjusted in increments of ± 0.005.
Ideally, the raw density has already been
set correctly on the hand-held measuring
instrument before the water content
measurement.
Determining the density value D of your
fresh concrete with a concrete test piece
is set using the and buttons. After
this, the value is confirmed using the
button. The hand-held measuring instru-
ment automatically returns to the
“ADJUST” menu.
Entering the raw density value is impor-
tant because it is directly included when
calculating the water content. If the raw
density cannot be determined on site, the
target raw density value can also be en-
tered to obtain an acceptable measure-
ment result. A deviation in the density of
± 0.02 would result in an error in the wa-
ter content measurement of ± 1.6 l. A dif-
ference in the raw density of 0.1, i.e. from
a density of 2,200 to 2,300, means an 8 l
difference in the water content.
Setting up the CHAR concrete
formulation characteristic
Entry of the CHAR parameter is carried
out by activating one of the four possible
settings “fine”, “normal”, “coarse” or
“special”. The mortar content in the con-
crete substantially affects the CHAR pa-
rameter. One of the four possibilities for
CHAR must be selected with the and
buttons and confirmed with the
button.
Fine adjustment of the G-Set for con-
crete type together with the type of
rock and core water
The G-Set value is entered using l/m³ and
can be entered in 1-litre steps up to ±
50 l. It is recommended to archive found
G-Set values for a particular rock type.
Enter the value for G-Set in ±1 litre steps
up to max. ± 50 l/m³ with the and
buttons and confirm with the button.
After adjusting the raw density value,
CHAR parameter and the G-Set, pressing
the button will automatically take you
to the measurement menu.
