Absolute Pressure With Front-Flush Diaphragm - Siemens SITRANS P Operating Instructions Manual

For devices with functional safety, the minimum permissible measuring span is limited by the
1)
spread. Therefore, ensure that the configured spread is no higher than 5:1.
Absolute pressure measuring limits from
gauge pressure series
Lower measuring limit
● Measuring cell with silicone oil filling
● Measuring cell with inert oil
For process temperature
-20 °C < ϑ ≤ 60 °C (-4 °F < ϑ
≤ +140 °F)
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))
Upper measuring limit
Lower range value
13.1.5

Absolute pressure with front-flush diaphragm

Absolute pressure with front-flush diaphragm
Measured variable
Measuring span (continuous‐
ly adjustable) or measuring
range, max. operating pres‐
sure and max. test pressure
For devices with functional safety, the minimum permissible measuring span is limited by the
1)
spread. Therefore, ensure that the configured spread is no higher than 5:1.
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
0 mbar a/kPa a/psi a
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 max. range (for oxygen measurement: max. 100 bar/10 MPa/
1450 psi and 60 °C ambient temperature/medium temperature)
Between the measuring limits (continuously adjustable)
Absolute pressure
Measuring span
1)
43 ... 1300 mbar a
4.3 ... 130 kPa a
17 ... 525 inH O a
2
166 ... 5000 mbar a
16.6 ... 500 kPa a
2.41 ... 72.5 psi a
1 ... 30 bar a
0.1 ... 3 MPa a
14.5 ... 435 psi a
Depending on the process connection, the measuring span may differ from these values
Maximum permissible
operating pressure MAWP
(PS)
Refer to the information on the nameplate of the pressure
transmitter and the data on the mounting flange
Technical data
13.1 Input
Maximum test
pressure
2)
203