VEGA VEGABAR 64 Foundation Fieldbus User Manual
Page 58
Thermal change zero signal and output span with absolute pressure measuring range 0.1 bar,
reference temperature 20 °C (68 °F):
-
In the compensated temperature range
0 … +100 °C (+32 … +212 °F)
< (0.1 % + 0.1 % x TD)
-
Outside the compensated temperature
range
< (0.15 % + 0.15 % x TD)
Applies also to instruments with analogue 4 … 20 mA current output and refers to the set span.
Thermal change, current output
< 0.15 % at -40 … +80 °C (-40 … +176 °F)
Long-term stability (similar to DIN 16086, DINV 19259-1 and IEC 60770-1)
Applies to digital interfaces (HART, Profibus PA, Foundation Fieldbus) as well as to analogue
current output 4 … 20 mA. Specifications refer to the set span. Turn down (TD) = nominal
measuring range/set span.
Long-term drift of the zero signal
< (0.1 % x TD)/year
Ambient conditions
Ambient, storage and transport temperature
-40 … +80 °C (-40 … +176 °F)
Process conditions
The specifications to the pressure stage and the product temperature are used as an overview.
The specifications of the type label are applicable.
Pressure stage, process fitting
-
Thread 316L
PN
60
-
Thread Aluminium
PN
25
-
Thread PVDF
PN
10
-
Hygienic fittings 316L
PN
6, PN 10, PN 25, PN 40
-
Flange 316L
PN
16, PN 40,150 lbs, 300 lbs, 600 lbs
-
Flange with extension 316L
without PN specification, PN 16, PN 40 or 150 lbs,
300 lbs, 600 lbs
-
Flange PVDF
PN
16
Product temperature standard version, depending on the meas. cell seal
12)
-
FKM (VP2/A)
-20 … +120 °C (-4 … +248 °F)
-
EPDM (A+P 75.5/KW75F)
-40 … +120 °C (-40 … +248 °F), 1 h: 140 °C/284 °F
cleaning temperature
-
FFKM (Kalrez 6375)
-10 … +120 °C (+14 … +248 °F)
-
FFKM (Chemraz 535)
-30 … +120 °C (-22 … +248 °F)
Product temperature version with extended temperature range, depending on the meas. cell seal
as well as order specification
-
FKM (VP2/A)
-20 … +150 °C (-4 … +302 °F)
-
EPDM (A+P 75.5/KW75F)
-40 … +150 °C (-40 … +302 °F)
12)
With process fitting PVDF, max. 100 °C (212 °F).
58
VEGABAR
64 • Foundation Fieldbus
10 Supplement
28259
-EN
-081209