Siemens SITRANS P Operating Instructions Manual page 226

Technical data
13.3 Measuring accuracy of SITRANS P420
Long-term stability at ±30 °C (±54 °F) - differential pressure and flow
250 mbar/25 kPa/3.63 psi
600 mbar/60 kPa/8.70 psi
1600 mbar/160 kPa/23.21 psi
5 bar/500 kPa/72.52 psi
30 bar/3 MPa/435.11 psi
Step response time T (without electrical damping) - differential pressure and flow (PN 160)
63
20 mbar/2 kPa/0.29 psi
60 mbar/6 kPa/0.87 psi
250 mbar/25 kPa/3.63 ps
600 mbar/60 kPa/8.70 psi
1600 mbar/160 kPa/23.21 psi
5 bar/500 kPa/72.52 psi
30 bar/3 MPa/435.11 psi
Step response time T (without electrical damping) - differential pressure and flow (PN 420)
63
250 mbar/25 kPa/3.63 psi
600 mbar/60 kPa/8.70 psi
1600 mbar/160 kPa/23.21 psi
5 bar/500 kPa/72.52 psi
30 bar/3 MPa/435.11 psi
Effect of mounting position - differential pressure and flow
Effect of mounting position
226
In 5 years ≤ (0.125 • r)%
In 10 years ≤ (0.15 • r)%
In 5 years ≤ (0.25 • r)%
In 10 years ≤ (0.35 • r)%
Approx. 0.160 s
Approx. 0.150 s
Approx. 0.135 s
Approx. 0.25 s
Approx. 0.2 s
In pressure per change of angle
≤ 0.7 mbar/0.07 kPa/0.028
inH O per 10° incline
2
(zero-point correction is possible
with position error compensation)
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC