Siemens SITRANS P - Page 220

Conformity error at limit point setting, including hysteresis and repeatability - gauge pressure from differential pressure series
250 mbar/25 kPa/3.6 psi
600 mbar/60 kPa/240.9 inH
2
O
1600 mbar/160 kPa/642.4 inH
2
O
5000 mbar/500 kPa/2008 inH
2
O
30 bar/3 MPa/435 psi
≤ 0.04% ≤ (0.004 • r + 0.045)%
● Linear characteristic
curve
100 bar/10 MPa/1450.3 psi r ≤ 10 10 < r ≤ 30
≤ 0.1% ≤ 0.2%
Effect of ambient temperature - gauge pressure from differential pressure series
In percent per 28 °C (50 °F)
20 mbar/2 kPa/8.031 inH
2
O ≤ (0.15 • r + 0.1)%
60 mbar/6 kPa/24.09 inH
2
O ≤ (0.075 • r + 0.1)%
250 mbar/25 kPa/3.6 psi
5000 mbar/500 kPa/2008 inH
2
O
≤ (0.025 • r + 0.0625)%
600 mbar/60 kPa/240.9 inH
2
O
1600 mbar/160 kPa/642.4 inH
2
O
30 bar/3 MPa/435 psi
≤ (0.0125 • r + 0.0625)%
100 bar/10 MPa/1450.3 psi ≤ (0.08 • r + 0.16)%
Long-term stability at ±30 °C (±54 °F) - gauge pressure from differential pressure series
20 mbar/2 kPa/8.031 inH
2
O Per year ≤ (0.2 • r)%
60 mbar/6 kPa/24.09 inH
2
O In 5 years ≤ (0.25 • r)%
250 mbar/25 kPa/3.6 psi
600 mbar/60 kPa/240.9 inH
2
O
1600 mbar/160 kPa/642.4 inH
2
O
5000 mbar/500 kPa/2008 inH
2
O
In 5 years ≤ (0.125 • r)%
In 10 years ≤ (0.15 • r)%
30 bar/3 MPa/435 psi In 5 years ≤ (0.25 • r)%
In 10 years ≤ (0.35 • r)%
100 bar/10 MPa/1450.3 psi In 5 years ≤ (0.25 • r)%
Step response time T
63
(without electrical damping) - gauge pressure from differential pressure series
20 mbar/2 kPa/8.031 inH
2
O Approx. 0.160 s
60 mbar/6 kPa/24.09 inH2O Approx. 0.150 s
250 mbar/25 kPa/3.6 psi
600 mbar/60 kPa/240.9 inH
2
O
1600 mbar/160 kPa/642.4 inH
2
O
5000 mbar/500 kPa/2008 inH
2
O
30 bar/3 MPa/435 psi
Approx. 0.135 s
100 bar/10 MPa/1450.3 psi Approx. 0.145 s
Technical data
13.3 Measuring accuracy of SITRANS P420
SITRANS P320/P420 with 4 to 20 mA/HART
220 Operating Instructions, 11/2019, A5E44852162-AC