Siemens SITRANS P DS III - Page 198

Technical data
13.2 Input point
SITRANS P DS III with PROFIBUS PA
198 Operating Instructions, 06/2013, A5E00053276-07
Differential pressure and flow rate input
HART
PROFIBUS PA and FOUNDATION Fieldbus
for process
temperature -20°C <
ϑ ≤ 60°C (-4°F < ϑ
≤ +140°F)
-100% of max. measuring range
(-33 % for 30 bar (435 psi) measuring cell) or 30 mbar a (0.44 psi a)
for process
temperature 60°C <
ϑ ≤ 100°C (max.
85°C for measuring
cell 30 bar) (140°F <
ϑ ≤ 212°F (max.
185°F for measuring
cell 435 psi))
• -100% of max. measuring range (-33% for 30 bar (435 psi) measuring cell)
• 30 mbar a + 20 mbar a • (ϑ - 60 °C)/°C
(0.44 psi a + 0.29 psi a • (ϑ - 108 °F)/°F)
Upper measuring limit 100% of max. span (max. 100 bar g
(1450 psi g) for oxygen measurement)
ambient temperature/process temperature
60°C
100% of max. measuring range (max.
100 bar g (1450 psi g) for oxygen
measurement) ambient temperature/process
temperature 60°C
Start of scale value
Between the measuring limits (fully adjustable)
Level input
HART
PROFIBUS PA and FOUNDATION Fieldbus
Measured variable Level
Span (continuously
adjustable) or measuring
range and max. operating
pressure (in accordance
with 97/23/EC Pressure
Equipment Directive)
Span Maximum operating
pressure MAWP (PS)
Measuring range Maximum operating
pressure
25 … 250 mbar
(10 ... 100 inH
2
O)
see the mounting
flange
250 mbar
(100 inH
2
O)
see the mounting flange
25 … 600 mbar
(10 … 240 inH
2
O)
600 mbar
(240 inH
2
O)
53 … 1600 mbar
(21 … 640 inH
2
O)
1600 mbar
(640 inH
2
O)
160 … 5000 mbar
(2.32 … 72.5 psi)
5 bar
(72.5 psi)
Lower measuring limit
• Measuring cell with
silicone oil filling
-100% of the max. measuring range or 30 mbar a (0.44 psi a) depending on the mounting
flange
• Measuring cell with
inert liquid
-100% of the max. measuring range or 30 mbar a (0.44 psi a) depending on the mounting
flange
Upper measuring limit
100% of maximum span
100% of max. measuring range
Start of scale value
between the measuring limits continuously adjustable