IMKO SONO-VARIO LD, User Manual

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3. Installation of the Probe
The installation conditions are strongly influenced by the constructional circumstances of the
installation facility. The ideal installation location must be established individually. For measuring
sand, gravel and grit, the SONO-VARIO should ideally be installed under a silo valve, which has
many advantages (see below).
Installation of the SONO-VARIO for measuring sand, gravel and grit, under a silo valve or on a conveyor belt.
Dependent on material, it is important to find the suitable angle of the mounting plate. It should be not too
steep, but also not too flat.
It should be mentioned, that with the innovative features of SONO-probes and an extremely rugged
design, it is possible, to install a SONO-VARIO directly under valves of silos, also for gravel with
32mm size. The installation inside a silo could be also possible, but it must be observed, that
during filling and emptying, no material (e.g. sand) can be stick on the probes surface, which could
be result in measurement errors. The following instructions should be followed when installing the
probe:
The SONO-VARIO should be installed ideally under a valve of the silo, which has many
advantages:
1. The material flows constant and therefore the material density is constant which guarantees
more precise measurement values.
2. Due to higher material pressure, the probe´s surface is cleaned continously. Material sticking
and therefore measurement errors are be prevented.
3. The SONO-VARIO can detect clearly the start and the end of a batch process. So the SONO-
VARIO can calculate an automatic summation of the moisture quantity during one batch
process in mode CC. Even short batches with few material can be precisely measured.
Further advantage is that the PLC programming can be made more simple without switching
signals.