Vega VEGABAR 64 4 … 20 mA_HART Bedienungsanleitung PDF herunterladen (Seite 50)

Basic accuracy analogue output signal in percent:

perf

= √((F

)

+ (F

)

+ (F

)

= (0.05 % + 0.1 % x TD)

= 0.075 %

= 0.15 %

perf

= √((0.05 % + 0.1 % x 1.25)

+ (0.075 %)

+ (0.15 %)

)

perf

= 0.24 %

Total deviation analogue output signal in percent:

total

= F

perf

+ F

stab

= (0.1 % x TD)/year

stab

= (0.1 % x 1.25)/year

stab

= 0.125 %

total

= 0.24 % + 0.125 % = 0.365 %

Total deviation analogue output signal absolute:

total

= 0.365 % x 8 bar/100 % = 29.2 mbar

8.4 Exchanging the electronics module

In case of a defect, the electronics module can be exchanged by the

user against an identical type. If no electronics module is available on

side, the module can be ordered for the VEGA agency serving you.

Ordering and exchange are possible with or without sensor serial

number. The electronics module with serial number includes order-

speciﬁc data such as factory setting, seal material etc. These are not

included in the electronics module without serial number.

The serial number is stated on the type label of VEGABAR 64 or on the

delivery note.

8.5 Software update

The following components are required to update the sensor software:

l Sensor

l Power supply

l VEGACONNECT

l PC with PACTware

l Current sensor software as ﬁle

At "

www.vega.com/downloads" go

to "Software". Select under "plics

instruments and sensors" the suitable instrument series. Load the zip

ﬁle via the right mouse key with "Save target as" e.g. on the d esktop of

your PC. Extract all ﬁles available in the zip ﬁle, e.g. to the desktop.

Load sensor software to

50 VEGABAR 64 • 4 … 20 mA/HAR

8 Maintenance and fault rectiﬁcati

27525-EN-081209

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