VEGA VEGABAR 63 Foundation Fieldbus - Manual (Page 9)

l Article numbers 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
VEGABAR 63 is a pressure transmitter for measurement of over-
pressure, absolute pressure or vacuum. Measured products are
gases, vapours and liquids in measuring ranges up to 4000 bar
(400 MPa); with front-flush version also viscous liquids in measuring
ranges up to 600 bar (60 MPa).
The process pressure acts on the sensor element via the stainless
steel diaphragm. The process pressure causes a resistance change
which is converted into a corresponding output signal and outputted as
measured value.
1)
Power is supplied via the H1 Fieldbus. A two-wire cable according to
Fieldbus specification serves as carrier of both power and digital data
for multiple sensors. This cable can be operated in two versions:
l via an H1 interface card in the control system and additional power
supply
l
via a Linking device
with HSE (High speed
Ethernet) and addition-
al power supply ac-
cording to IEC 61158-2
The DD (Device Descriptions) and CFF (capability files) necessary for
planning and configuration of your FF (Foundation Fieldbus) commu-
nication network are available in the download area of the VEGA
homepage www.vega.com under "S
ervices - Downloads - Software -
Foundation Fieldbus". The appropriate certificates are also available
there. A CD with the appropriate files and certificates can be ordered
via e-mail under [email protected] or by phone from one of the VEGA
agencies under the order number "DRIVER.S".
1) Measuring ranges up to 16 bar: piezoresistive sensor element with internal
transmission liquid, with measuring ranges up to 25 bar: Strain gauge
(DMS) sensor element on the rear of the stainless steel diaphragm (dry).
Application area
Functional principle
Power supply and bus
communication
DD/CFF
VEGABAR 63 • Foundation Fieldbus 9
3 Product description
32464
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EN
-081209