Level - Siemens SITRANS P320 Compact Operating Instructions

Differential pressure and flow measuring limits
Upper measuring 100% of max. range (for oxygen measurement: max. 100 bar/10 MPa/1450 psi and 60 °C ambient tem‐
limit perature/medium temperature)
Lower range value Between the measuring limits (continuously adjustable)
8.1.8

Level

Level input
Measurand
Measuring span (continuous‐
ly adjustable) and maximum
operating pressure (accord‐
ing to 2014/68/EU Pressure
Equipment 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.
Level measuring limits
Lower measuring limit
Measuring cell with silicone oil
filling
Measuring cell with inert oil
Measuring cell with FDA-com‐
pliant oil
Upper measuring limit
Lower range value
SITRANS P320/P420
Compact Operating Instructions, 09/2021, A5E38874562-AD
Level
Measuring span
1)
25 ... 250 mbar
2.5 ... 25 kPa
10 ... 100 inH O
2
25 ... 600 mbar
2.5 ... 60 kPa
10 ... 240 inH O
2
53 ... 1600 mbar
5.3 ... 160 kPa
21 ... 640 inH O
2
166 ... 5000 mbar
16.6 ... 500 kPa
2.41 ... 72.5 psi
-100% of max. measuring range or 30 mbar a/3 kPa a/0.44 psi a depending on
the mounting flange
-100% of max. measuring range or 30 mbar a/3 kPa a/0.44 psi a depending on
the mounting flange
-100% of maximum measuring range or 100 mbar a /10 kPa a /1.45 psi a
100% of max. range
Between the measuring limits (continuously adjustable)
Maximum permissible
operating pressure MAWP (PS)
See mounting flange
Technical data
8.1 Input
Max. permissible
test pressure
71