Burkert Type 8136 - Manual (Page 8)

3 .2 Principle of operation
The LEVEL TRANSMITTER 8136 is a radar sensor for continuous
level measurement of liquids under simple process conditions.
Dependent on the application range, different versions are used:
l Level measurement of aggressive liquids in small vessels:
encapsulated antenna system
l Flow measurement in open flumes or gauge measurement of
bodies of water: Plastic horn antenna
l Products with an ε
r
value ≥1.8: Standard electronics
l Products with an ε
r
value ≥1.5, < 1.8; applications with very poor
reflective properties: Electronics with increased sensitivity
The actual values that can be reached depend on the measurement
conditions, the antenna system or the standpipe or bypass.
The antenna of the radar sensor emits short radar pulses with a
duration of approx. 1 ns. These pulses are reflected by the product
and received by the antenna as echoes. The transit time of the radar
pulses from emission to reception is proportional to the distance and
hence to the level. The determined level is converted into an
appropriate output signal and outputted as measured value.
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
according to DIN EN 24180.
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 under 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
concealed 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:
l Not in the open
l Dry and dust free
l Not exposed to corrosive media
Application area
Functional principle
Packaging
Transport
Transport inspection
Storage
8 LEVEL TRANSMITTER 8136 • 4 … 20 mA/HART - two-wire
3 Product description
41783
-EN
-120316