Siemens SITRANS P Instruções de Operação Página 185

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Level measuring accuracy
HART PROFIBUS PA or Foundation Fieldbus
Measuring cell
250 mbar (3.63 psi)
≤ (0.5 • r + 0.2) % ≤ 0,7 %
Measuring cell 600 mbar (8.7 psi) ≤ (0.3 • r + 0.2) % ≤ 0,5 %
Measuring cell 1.6 and 5 bar
(23.2 and 72.5 psi)
≤ (0.25 • r + 0.2) % ≤ 0,45 %
At -40 … -10°C and
+60 … +85°C
(-40 … 14°F and 140 … 185°F)
(double values for 10 < r ≤ 30)
Measuring cell
250 mbar (3.63 psi)
≤ (0.25 • r + 0.15) %/10 K
(≤ (0.25 • r + 0.15) %/18°F)
≤ 0.4 %/10 K (≤ 0.4 %/18°F)
Measuring cell 600 mbar (8.7 psi) ≤ (0.15 • r + 0.15) %/10 K
(≤ (0.15 • r + 0.15) %/18°F)
≤ 0.3 %/10 K (≤ 0.3 %/18°F)
Measuring cell 1.6 and 5 bar
(23.2 and 72.5 psi)
≤ (0.12 • r + 0.15) %/10 K
(≤ (0.12 • r + 0.15) %/18°F)
≤ 0.27 %/10 K (≤ 0.27 %/18°F)
Effect of static pressure
At the start of scale value
Measuring cell 250 mbar
(0.29 psi)
≤ (0.3 • r) % per nominal pressure ≤ 0.3 % per nominal pressure
Measuring cell 600 mbar (8.7 psi) ≤ (0.15 • r) % per nominal pressure ≤ 0.15 % per nominal pressure
Measuring cell 1.6 and 5 bar
(23.2 and 72.5 psi)
≤ (0.1 • r) % per nominal pressure ≤ 0.1 % per nominal pressure
On the measuring span ≤ (0.1 • r) % per nominal pressure ≤ 0.1 % per nominal pressure
Influence of mounting position depending on the fill fluid in the mounting flange
Power supply influence In percent per change in voltage
0.005 % per 1 V
Measuring value resolution 3 • 10
-5
of the rated measuring range
11.5 Operating conditions
Rated conditions for gauge pressure and absolute pressure (from the gauge pressure series)
Installation conditions
Ambient conditions
Ambient temperature
Note Observe the temperature class in hazardous areas.
Measuring cell with silicon oil
filling
-40 … +85 °C (-40 … +185 °F)
Measuring cell with inert liquid -20 … +85 °C (-4 … +185 °F)
Display -30 … +85 °C (-22 … +185 °F)
Storage temperature -50 … +85 °C (-58 … +185 °F)
Climate class
Condensation Permitted
Technical data
11.5 Operating conditions
SITRANS P, DS III series with HART
Operating Instructions, 09/2012, A5E00047092-08 183
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