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7.1.7
Differential pressure and flow
Differential pressure input and flow
Measured variable
Measuring span (continuous‐
ly adjustable) and maximum
operating pressure (accord‐
ing to 2014/68/EU Pressure
Equipment Directive)
SITRANS P320/P420 (mA/HART)
Compact Operating Instructions, 06/2018, A5E38874562-AA
Differential pressure and flow
Measuring span
1 ... 20 mbar
0.1 ... 2 kPa
0.4015 ... 8.031 inH
O
2
1 ... 60 mbar
0.1 ... 6 kPa
0.4015 ... 24.09 inH
O
2
2.5 ... 250 mbar
0.2 ... 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
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
Maximum permissible
operating pressure
MAWP (PS)
160 bar
16 MPa
2320 psi
160 bar
16 MPa
2320 psi
160 bar
16 MPa
2320 psi
160 bar
16 MPa
2320 psi
160 bar
16 MPa
2320 psi
160 bar
16 MPa
2320 psi
160 bar
16 MPa
2320 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
420 bar
42 MPa
6091 psi
Technical data
7.1 Input
Max. permissible
test pressure
240 bar
24 MPa
3480 psi
240 bar
24 MPa
3480 psi
240 bar
24 MPa
3480 psi
240 bar
24 MPa
3480 psi
240 bar
24 MPa
3480 psi
240 bar
24 MPa
3480 psi
240 bar
24 MPa
3480 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
630 bar
63 MPa
9137 psi
61
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