Siemens SITRANS Series - Page 8

13 Technical data..........................................................................................................................................191
13.1 Input.....................................................................................................................................191
13.1.1 Gauge pressure...................................................................................................................191
13.1.2 Gauge pressure with front-flush diaphragm.........................................................................192
13.1.3 Gauge pressure from the differential pressure series..........................................................193
13.1.4 Absolute pressure from the gauge pressure series.............................................................194
13.1.5 Absolute pressure with front-flush diaphragm......................................................................195
13.1.6 Absolute pressure from the differential pressure series.......................................................196
13.1.7 Differential pressure and flow...............................................................................................197
13.1.8 Level.....................................................................................................................................198
13.2 Measuring accuracy of SITRANS P320...............................................................................199
13.2.1 Reference conditions...........................................................................................................199
13.2.2 Effect of auxiliary power supply............................................................................................199
13.2.3 Gauge pressure...................................................................................................................199
13.2.4 Gauge pressure from the differential pressure series..........................................................201
13.2.5 Absolute pressure from gauge and differential pressure series...........................................202
13.2.6 Absolute pressure with front-flush diaphragm......................................................................203
13.2.7 Gauge pressure with front-flush diaphragm.........................................................................204
13.2.8 Differential pressure and flow...............................................................................................205
13.2.9 Level.....................................................................................................................................208
13.3 Measuring accuracy of SITRANS P420...............................................................................209
13.3.1 Reference conditions...........................................................................................................209
13.3.2 Effect of auxiliary power supply............................................................................................209
13.3.3 Gauge pressure...................................................................................................................209
13.3.4 Gauge pressure from the differential pressure series .........................................................210
13.3.5 Absolute pressure from gauge and differential pressure series...........................................212
13.3.6 Absolute pressure with front-flush diaphragm......................................................................213
13.3.7 Gauge pressure with front-flush diaphragm.........................................................................214
13.3.8 Differential pressure and flow...............................................................................................214
13.3.9 Level.....................................................................................................................................218
13.4 Output..................................................................................................................................219
13.5 Operating conditions............................................................................................................219
13.6 Vibration resistance..............................................................................................................224
13.7 Construction.........................................................................................................................225
13.8 Torques................................................................................................................................229
13.9 Display, keyboard and auxiliary power.................................................................................229
13.10 Certificates and approvals....................................................................................................230
14 Dimension drawings.................................................................................................................................233
14.1 SITRANS P320/P420 for gauge pressure and absolute pressure from the gauge
pressure series.....................................................................................................................233
14.2 SITRANS P320/P420 for differential pressure, gauge pressure, flow and absolute
pressure from the differential pressure series......................................................................235
14.3 SITRANS P 320/P420 for level............................................................................................237
14.4 SITRANS P320/P420 (front-flush).......................................................................................238
Table of contents
SITRANS P320/P420 (mA/HART)
8 Operating Instructions, 06/2018, A5E44852162-AA