Vega VEGABAR 67 Profibus PA Bedienungsanleitung PDF herunterladen (Seite 9)

3 Product description

VEGABAR 67 • Probus PA

36743-EN-130321

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

1 Instrument type

2 Product code

3 Approvals

4 Electronics

5 Protection rating

6 Measuring range

7 Process and ambient temperature, process pressure

8 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 instru-

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

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

ber on the inside of the instrument.

3.2 Principle of operation

VEGABAR 67 is a suspension pressure transmitter for level measure-

ment in vessels. Measured products can be all media against which

the wetted materials of VEGABAR 67 are resistant.

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.

The CERTEC

measuring cell is also equipped with a temperature

sensor. The temperature value can be displayed via the display and

adjustment module or processed via the signal output.

Power supply via the Probus DP/PA segment coupler or VEGALOG

571 EP cards. A two-wire cable according to Probus specication

serves as carrier of both power and digital data transmission for

Application area

Functional principle

ower supply and bus

communication

For use in atmospherically closed vessels under vacuum, VEGABAR is avail-

able with absolute pressure measuring ranges.

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