Siemens SITRANS P320 Compact Operating Instructions page 70

Technical data
8.1 Input
For devices with functional safety, the minimum permissible measuring span is limited by the
1)
turndown. Therefore, ensure that the configured turndown is no higher than 5:1.
Differential pressure and flow rate input, MAWP 420 bar (6092 psi)
Measurand
Measuring span (continuous‐
ly adjustable) or measuring
range and maximum operat‐
ing pressure (according to
2014/68/EU Pressure Equip‐
ment Directive)
For devices with functional safety, the minimum permissible measuring span is limited by the
1)
turndown. Therefore, ensure that the configured turndown is no higher than 5:1.
Differential pressure and flow measuring limits
Lower measuring limit
• Measuring cell with silicone oil filling
All measuring -100% of maximum measuring range or 30 mbar a /3 kPa a /0.44 psi a
cells
Measuring cell -25% of maximum measuring range or 30 mbar a /3 kPa a /0.44 psi a
160 bar/
0.16 MPa/
2320 psi
• Measuring cell with inert oil
For process temperature -20 °C
< ϑ ≤ 60 °C (-4 °F < ϑ ≤ +140 °F)
For medium temperature 60 °C
< ϑ ≤ 100 °C (max. 85 °C for
measuring cell 30 bar with
MAWP 420 bar) (140 °F < ϑ
≤ 212 °F (max. 185 °F for meas‐
uring cell 435 psi))
For process temperature -10 °C
• Measuring cell
< ϑ ≤ 100 °C (-14 °F < ϑ ≤ +212 °F)
with FDA-com‐
pliant oil
70
Differential pressure and flow
Measuring span
1)
2.5 ... 250 mbar
0.25 ... 25 kPa
1.004 ... 100.4 inH O
2
6 ... 600 mbar
0.6 ... 60 kPa
2.409 ... 240.9 inH O
2
16 ... 1600 mbar
1.6 ... 160 kPa
6.424 ... 642.4 inH O
2
50 ... 5000 mbar
5 ... 500 kPa
20.08 ... 2008 inH O
2
0.3 ... 30 bar
0.03 ... 3 MPa
4.35 ... 435 psi
-100% of maximum measuring range or 30 mbar a /3 kPa a /0.44 psi a
-100% of maximum measuring range or 30 mbar a /3 kPa a /0.44 psi a
30 mbar a + 20 mbar a • (ϑ - 60 °C)/°C
3 kPa a + 2 kPa a • (ϑ - 60 °C)/°C
0.44 psi a + 0.29 psi a • (ϑ - 140 °F)/°F
-100% of maximum measuring range or 100 mbar a /10 kPa a /
14.5 psi a.
Maximum
operating pressure MAWP (PS)
420 bar
42 MPa
6091 psi
420 bar
42 MPa
6091 psi
420 bar
42 MPa
6091 psi
420 bar
42 MPa
6091 psi
420 bar
42 MPa
6091 psi
Compact Operating Instructions, 09/2021, A5E38874562-AD
Max. permissible
test pressure
630 bar
63 MPa
9137 psi
630 bar
63 MPa
9137 psi
630 bar
63 MPa
9137 psi
630 bar
63 MPa
9137 psi
630 bar
63 MPa
9137 psi
SITRANS P320/P420