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Handling the lancehead-shaped probe
SONO WZ
Translation of the Original Instructions for Use
The SONO WZ uses 1 GHz radar technol-
ogy, utilising a lancehead-shaped probe
whose measuring field penetrates deep
into the material to be measured. Plastic
and liquid fresh concrete with F2 to F6
consistency can be measured easily and
directly by hand with the SONO WZ. For
a representative measurement with differ-
ent material mixtures, automatic averag-
ing takes place when carrying out 4 – 10
individual measurements. Thanks to the
structured measuring procedure, repre-
sentative and precise measurement re-
sults are displayed within a few minutes.
SONO WZ works with the innovative
TRIME TDR technology (Time Domain
Reflectometry) based on guided radar
waves. Guided radar waves with very low
power of only 10 milliwatts (i.e. no poten-
tial hazard from electromagnetic radiation,
etc.) are also used, for example, in indus-
trial level measuring. In the TDR measure-
ment according to the TRIME method,
the radar pulse is attenuated depending
on the cement content and cement type,
and used as the ECTRIME conductivity in
dS/m (Dezi-Siemens per metre) for state-
ments regarding the cement.
– For concretes that do not comply with
the specifications according to DIN EN
206-1 and DIN 1045-2 (which, for ex-
ample, have a tendency to bleed), con-
siderable fluctuations in the measured
values can occur.
– Incorrectly mixed concretes are difficult
to measure with the SONO WZ (even
when using a Darr Test).
Introduction
