68
11 Supplement
VEGABAR 82 • Profibus PA
45031-EN-220624
Measuring cell version
Measuring cell climate-compensated, depending on measuring range
-1 … 0 bar, -1 … 1,5 bar,
5 bar, 10 bar, 25 bar,
60 bar, 100 bar
-0.5 … 0.5 bar, 1 bar,
2,5 bar
0.4 bar, -0.2 … 0.2 bar
Factor FMZ
1
2
3
Additional factor through Turn Down
The additional factor FTD through Turn down is calculated according to the following formula:
F
TD
= 0.5 x TD + 0.5
In the table, example values for typical Turn downs are listed.
Turn Down
TD 1 : 1
TD 2.5 : 1
TD 5 : 1
TD 10 : 1
TD 20 : 1
Factor FTD
1
1.75
3
5.5
10.5
Long-term stability (according to DIN 16086)
Applies to the respective
digital
signal output (e.g. HART, Profibus PA) as well as to
analogue
cur-
rent output 4 … 20 mA under reference conditions. Specifications refer to the set span. Turn down
(TD) is the ratio nominal measuring range/set span.
Long-term stability zero signal and output span
Time period
Measuring cell ø 28 mm
Measuring cell ø 17.5 mm
Measuring ranges from
0 … +0.1 bar
(0 … +10 kPa)
Measuring range
0 … +0.025 bar
(0 … +2.5 kPa)
One year
< 0.05 % x TD
< 0.1 % x TD
< 0.1 % x TD
Five years
< 0.1 % x TD
< 0.2 % x TD
< 0.2 % x TD
Ten years
< 0.2 % x TD
< 0.4 % x TD
< 0.4 % x TD
Long-term stability zero signal and output span - version climate-compensated
Nominal measuring range in bar/
kPa
Nominal measuring
range in psig
Measuring cell
ø 28 mm
Measuring cell
ø 17.5 mm
0 … 0.4 bar/0 … 40 kPa
0 … 6 psig
< (1 % x TD)/year
< (1.5 % x TD)/year
-0.2 … 0.2 bar/-20 … 20 kPa
-3 … 3 psig
0 … 1 bar/0 … 100 kPa
0 … 15 psig
< (0.25 % x TD)/year
< (0.375 % x TD)/year
0 … 2.5 bar/0 … 250 kPa
0 … 35 psig
-1 … 0 bar/-100 … 0 kPa
-15 … 0 psig
-1 … 1.5 bar/-100 … 150 kPa
-15 … 25 psig
-0.5 … 0.5 bar/-50 … 50 kPa
-7 … 7 psig