Principle Of Operation - Vega VEGABAR 66 Operating Instructions Manual

Type label
Application area
Functional principle
VEGABAR 66 • Foundation Fieldbus
The type label contains the most important data for identification and
use of the instrument:
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Fig. 2: Structure of the type label (example)
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Instrument type
2
Product code
3
Approvals
4
Electronics
5
Protection rating
6
Measuring range
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Process and ambient temperature, process pressure
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Material, wetted parts
9
Hardware and software version
10 Order number
11 Serial number of the instrument
12 ID numbers, instrument documentation
With the serial number, you can access the delivery data of the
instrument via www.vega.com, "VEGA Tools" and "serial number
search". In addition to the type label outside, you can also find the
serial number on the inside of the instrument.

3.2 Principle of operation

The VEGABAR 66 is a suspension pressure transmitter for level
measurement in wells, basins and atmospherically open vessels.
For use in atmospherically closed vessels under vacuum, the
instrument is available with absolute pressure measuring ranges.
Sensor element is the CERTEC
dependent on the process fitting also front-flush, abrasion-resistant
ceramic diaphragm. The process pressure causes a capacitance
change in the measuring cell via the ceramic diaphragm. This change
is converted into an appropriate output signal and outputted as
measured value.
3 Product description
®
measuring cell with robust,
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