Siemens SITRANS P - Page 5

7.4 Locking the device .................................................................................................................82
7.4.1 Enable write protection with jumper .......................................................................................82
7.4.2 Enable user PIN .....................................................................................................................83
7.4.3 Enabling button lock...............................................................................................................84
8 Commissioning ...........................................................................................................................................87
8.1 Basic safety instructions.........................................................................................................87
8.2 Switching on the supply voltage.............................................................................................88
8.3 Commissioning the device without display.............................................................................89
8.4 Commissioning the device with display..................................................................................90
8.5 Application examples .............................................................................................................92
8.5.1 Gauge pressure, absolute pressure from differential pressure series, and absolute
pressure from gauge pressure series ....................................................................................
92
8.5.1.1 Commissioning in gaseous environments..............................................................................92
8.5.1.2 Commissioning with steam or liquid.......................................................................................93
8.5.2 Differential pressure and flow rate .........................................................................................94
8.5.2.1 Commissioning in gaseous environments..............................................................................94
8.5.2.2 Commissioning for liquids ......................................................................................................96
8.5.2.3 Commissioning with vapor .....................................................................................................98
9 Parameter assignment .............................................................................................................................101
9.1 Overview of parameters and functions.................................................................................101
9.2 Parameter assignment over device with display ..................................................................106
9.2.1 Pressure units [01] ...............................................................................................................106
9.2.1.1 Display of the pressure units................................................................................................107
9.2.1.2 Setting the pressure units ....................................................................................................107
9.2.2 Set lower range value [02]/Set upper range value [03] ........................................................108
9.2.2.1 Set lower range value parameter [02] ..................................................................................108
9.2.2.2 Set upper range value parameter [03] .................................................................................108
9.2.2.3 Set lower range value/upper range value (without pressure available) ...............................109
9.2.3 Damping value [04] ..............................................................................................................110
9.2.3.1 Set damping value ...............................................................................................................110
9.2.4 Application [05].....................................................................................................................110
9.2.4.1 Pressure measurement........................................................................................................112
9.2.4.2 Level measurement..............................................................................................................113
9.2.4.3 Volume and mass flow measurements ................................................................................115
9.2.4.4 Volume measurement ..........................................................................................................118
9.2.4.5 Set application......................................................................................................................119
9.2.5 Application point [06]............................................................................................................119
9.2.6 Zero point adjustment [07] ...................................................................................................119
9.2.6.1 Adjusting zero point (gauge pressure) .................................................................................120
9.2.6.2 Adjusting the zero point (differential pressure).....................................................................121
9.2.6.3 Adjusting zero point (absolute pressure)..............................................................................121
9.2.7 Apply lower range value [08]/Apply upper range value [09].................................................122
9.2.7.1 Apply lower range value parameter [08] ..............................................................................122
9.2.7.2 Apply upper range value parameter [09]..............................................................................122
9.2.7.3 Apply lower range value/upper range value (with pressure present) ...................................122
9.2.8 Select fault current [10] ........................................................................................................124
9.2.9 Lower fault current [11] ........................................................................................................124
Table of contents
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC 5