VEGA VEGABAR 55 Profibus PA - Manual (Page 43)

43
8 Maintenance and fault rectification
VEGABAR 55 • Profibus PA
36735-EN-130321
Total deviation digital output signal absolute:
F
total
= 0.315 % x 8 bar/100 % = 25.2 mbar
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 from the 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 55 or on
the delivery note.
8.5 Software update
The software version of VEGABAR 55 can be determined as follows:
•
on the type label of the electronics
•
Via the display and adjustment module
•
via PACTware
You can view all software histories on our website www.vega.com.
Make use of this advantage and get registered for update information
via e-mail.
The following components are required to update the sensor soft-
ware:
•
Sensor
•
Voltage supply
•
VEGACONNECT
•
PC with PACTware
•
Current sensor software as file