Vega VEGABAR 65 4 … 20 mA_HART User Manual download pdf (Page 9)

l Article and serial number device

l Technic

al data: Measuring range, process pressure, process

temperature, signal output, voltage supply, protection, protection

class

l Order number

l Article numbers documentation

l SIL identiﬁcation (with SIL rating ex works)

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

instrument via

www.vega.com, "VEGA T

ools" 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

VEGABAR 65 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 measurement.

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, temper-

ature-compensating isolating system.

The hydrostatic pressure of the product or the process pressure

causes a capacitance change in the measuring cell via the metal

process diaphragm and the isolating liquid. This change is converted

into a corresponding output signal.

Two-wire electronics 4 … 20 mA/HART for power supply and

measured value transmission over the same cable.

The supply voltage range can diﬀer depending on the instrument

version.

The data for power supply are speciﬁed in chapter "Technical data".

The background lighting of the indicating and adjustment module is

voltage. You can ﬁnd the exact voltage speciﬁcations in chapter

"Technical data".

The optional heating requires its own operating voltage. You can ﬁnd

details in the supplementary instructions manual "Heating for indicat-

ing and adjustment module".

This function is generally not available for approved instruments.

3.3 Operation

VEGABAR 65 can be adjusted with diﬀerent adjustment media:

l with indicating and adjustment module

Application area

Functional principle

Power supply

VEGABAR 65 • 4 … 20 mA/HART 9

3 Product description

27531-EN-081209

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Vega VEGABAR 65 4 … 20 mA_HART User Manual Page 9

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