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2 principle of operation – VEGA VEGABAR 55 4 … 20 mA User Manual

Page 8

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3 Product description

VEGABAR 55 • 4 … 20 mA

36733-EN-130321

2

1

13

10

5

4

3

6
7
8
9

11

12

14

Fig. 2: Layout of the type label (example)
1 Instrument type

2 Product code

3 Approvals

4 Measuring range

5 Process pressure

6 Process temperature

7 Electronics, voltage supply

8 Protection rating

9 Order number

10 Serial number

11 Data-Matrix-Code for Smartphone-App

12 Material process seal

13 ID numbers, instrument documentation

14 Notified authority for CE marking

With the serial number, you can access the delivery data of the instru-

ment via www.vega.com, "VEGA Tools" and "serial number search".

In addition to the type label outside, you can also find the serial num-

ber on the inside of the instrument.

This operating instructions manual applies to the following instrument

versions:

Software from 3.82

3.2 Principle of operation

VEGABAR 55 is a pressure transmitter for use in the chemical, food

processing and pharmaceutical industries. Depending on the version,

it is used for level, gauge, absolute pressure or vacuum measure-

ment. Measured products are gases, vapours and liquids, also those

with higher temperatures.

The METEC

®

measuring cell is the measuring unit. It consists of

the ceramic-capacitive CERTEC

®

measuring cell and a special,

temperature-compensated isolating system.
The hydrostatic pressure of the product or the process pressure

causes a capacitance change in the measuring cell via the metallic

process diaphragm and the isolating liquid. This change is converted

into a corresponding output signal.

Scope of this operating

instructions manual

Application area

Functional principle