VEGA POINTRAC 31 Profibus PA - Manual (Page 8)

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3 Product description
POINTRAC 31 • Profibus PA
43835-EN-131119
•
Modification status, electronics as of -01
The instrument is available in different electronics versions. Each ver-
sion can be identified via the product code on the type label:
•
Standard electronics type PT30P-XX
The scope of delivery encompasses:
•
Radiation-based sensor
•
Mounting accessory
•
Documentation
– this operating instructions manual
– Operating instructions manual "Display and adjustment mod-
ule" (optional)
– Ex-specific "Safety instructions" (with Ex versions)
– if necessary, further certificates
3.2 Principle of operation
The instrument is suitable for applications in liquids and bulk solids in
vessels under difficult process conditions. There are application pos-
sibilities in nearly all areas of industry.
The limit level is detected contactlessly through the vessel wall. Nei-
ther a process fitting nor a vessel opening is required. The instrument
is thus ideal for retrofitting.
In radiation-based measurement, a Caesium-137 or Cobalt-60 iso-
tope emits focussed gamma rays that are attenuated when penetrat-
ing the vessel wall and the medium. The PVT detector on the opposite
side of the tank receives the radiation. When the intensity of the
radiation drops below a defined value, e.g. due to damping, then the
POINTRAC 31 switches. The measuring principle has proven itself
well under extreme conditions because it measures contactlessly
from outside through the vessel wall. The measuring system ensures
maximum safety, reliability and plant availability independent 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.
Electronics versions
Scope of delivery
Application area
Functional principle
Packaging
Transport