Deltabar S
Hauser
21
Warm-up period –
PMD75, FMD77, FMD78
• 4...20 mA HART : < 10 s
• PROFIBUS PA: 6 s
• FOUNDATION Fieldbus: 50 s
Influence of the operating
pressure on zero point and
span – PMD75, FMD77,
FMD78
Note!
The influence of the operating pressure on the zero point can be calibrated out.
Thermal change of the zero
output and the output
span -- PMD75
Measuring
cell
AISI 316L/1.4435, Alloy, Gold-Rhodium
coated or Monel process isolating diaphragm
Tantal process isolating diaphragm
Influence of the
operating pressure on
the zero point
Influence of the
operating pressure on
the span
Influence of the
operating pressure on
the zero point
Influence of the
operating pressure on
the span
10 mbar
0.15 % of URL/7 bar
0.035 % of URL/7 bar
0.28 % of URL/7 bar
0.28 % of URL/7 bar
30 mbar
0.35 % of URL/70 bar
0.14 % of URL/70 bar
0.70 % of URL/70 bar
0.70 % of URL/70 bar
100 mbar
0.15 % of URL/70 bar
0.14 % of URL/70 bar
0.42 % of URL/70 bar
0.42 % of URL/70 bar
500 mbar
0.075 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
3 bar
0.075 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
16 bar
0.075 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
40 bar
0.075 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
0.14 % of URL/70 bar
Measuring cell
–10...+60 °C (+14...+140°F)
AISI 316L/1.4435, Alloy, Gold-Rhodium
coated or Monel process isolating
diaphragm
Tantal process isolating diaphragm
% of the set span
10 mbar, 30 mbar
(0.31 x TD + 0.06)
100 mbar
(0.18 x TD + 0.02)
(0.24 x TD + 0.06)
500 mbar, 3 bar
(0.08 x TD + 0.05)
16 bar
(0.1 x TD + 0.1)
40 bar
(0.08 x TD + 0.05)
Measuring cell
–40...-10 °C, +60...+85 °C
(–40...+14°F, +140...+185°F)
all process isolating diaphragm materials
% of the set span
10 mbar, 30 mbar
(0.45 x TD + 0.1)
100 mbar
(0.3 x TD + 0.15)
500 mbar, 3 bar
(0.12 x TD + 0.1)
16 bar
(0.15 x TD + 0.2)
40 bar
(0.37 x TD + 0.1)
