VEGA VEGASON 71 - 1 … 75 - 1 - Manual (Page 4)

Product description
Introduction
4 71 -1 … 75 - 1
Contents of the instruction manual
The Technical Information / Operating Instruc-
tions is just called TIB. It contains all necessary
information for correct:
-
installation
- connection
- start-up
- linearization
- optimization
of the Pulse-Echo-measuring system
VEGASON 71 - 1 … 75 - 1.
This TIB is supplied as part of the order. Knowledge
of the contents is important for correct operation of
the indicating instrument.
This TIB accompanies the product and is
addressed to technical qualified staff which are
trained or have knowledge of the use of level
measurement and control equipment.
Safety information
The described module must only be inserted and
operated as described in this TIB. Please note that
other action can cause damage for which VEGA
does not take liability. VDE-regulations and the security measures valid
for the respective applications should be observed.
Special instructions for the use in Ex-Zone 1
The transducers SW 72 and SW 73 (SW 71
applied) are also available in the Ex-flame proofing
encapsulation "m". With the type designation SW
72 R and SW 73 R they have the flame proofing
EEx m II T6 and can be used in Ex-Zone 1. For these applications the regulations of the confor-
mity certificate PTB-no. Ex-92-C.2113 as well as
the special regulations acc. to VDE have to be
observed. The above mentioned conformity certifi-
cate accompanies the instrument.
The Pulse-Echo-measuring system VEGASON
71 – 1 … 75 – 1 enables level measurement for
liquids and solids.
The running periods of reflected sound impulse are
evaluated.
The running period is a measure of the distance
between sensor (transducer) and product.
The central electronics determines this distance
and converts it into the respective level.
Measurements are indicated on two integral LC-
displays and are either available as current or relay
outputs.
A measuring system consists of
-
one central electronics and
- one sensor (transducer).
Each sensor has its own temperature sensor for
compensation of the temperature influence on the
running period. The measuring data and tempera-
ture information are conducted via coax connection
cable.
The measuring system is provided with factory-set
parameters so that immediate use is possible for
most applications.
The adjustment procedures and sensor optimiza-
tions etc. can be programmed directly via a
keyboard on the central electronics.