VEGA VEGABAR 64 Foundation Fieldbus - Manual (Page 50)

Basic accuracy analogue output signal in percent:
F
perf
= √((F
T
)
2 + (F
Kl
)
2 + (F
a
)
2
)
F
T
= (0.05 % + 0.1 % x TD)
F
Kl
= 0.075 %
F
a
= 0.15 %
F
perf
= √((0.05 % + 0.1 % x 1.25) 2 + (0.075 %) 2 + (0.15 %) 2
)
F
perf
= 0.24 %
Total deviation analogue output signal in percent:
F
total
= F
perf
+ F
stab
F
stab
= (0.1 % x TD)/year
F
stab
= (0.1 % x 1.25)/year
F
stab
= 0.125 %
F
total
= 0.24 % + 0.125 % = 0.365 %
Total deviation analogue output signal absolute:
F
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 desktop of
your PC. Extract all files available in the zip file, e.g. to the desktop. Load sensor software to
PC
50 VEGABAR 64 • Foundation Fieldbus
8 Maintenance and fault rectification
28259
-EN
-081209