VEGA WEIGHTRAC 31 Profibus PA - Manual (Page 9)

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3 Product description
WEIGHTRAC 31 • Profibus PA
43837-EN-131119
3.2 Principle of operation
The instrument is suitable for bulk solid applications on conveyor belts
and screw conveyors. There are application possibilities in nearly all
areas of industry.
In radiation-based measurement, a Caesium-137 or Cobalt-60 iso-
tope emits focussed gamma rays that are attenuated when penetrat-
ing the conveyor belt and the medium. The PVT detector on the lower
side of the conveyor belt receives the radiation, whose strength is
proportional to the density. The measuring principle has proven to be
very reliable in conjunction with extreme process conditions because
it measures contactlessly from outside through the conveyor belt. The
measuring system ensures maximum safety, reliability and plant avail-
ability, independently of the medium and its properties.
3.3 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable cardboard. For special versions, PE foam or PE
foil is also used. Dispose of the packaging material via specialised
recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
•
Not in the open
•
Dry and dust free
•
Not exposed to corrosive media
•
Protected against solar radiation
•
Avoiding mechanical shock and vibration
•
Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
•
Relative humidity 20 … 85 %
Application area
Functional principle
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature