Siemens 7MF0400 - Connecting

8.2.5 Absolute pressure from gauge and differential pressure series.............................................74
8.2.6 Absolute pressure with front-flush diaphragm........................................................................75
8.2.7 Gauge pressure with front-flush diaphragm...........................................................................76
8.2.8 Differential pressure and flow.................................................................................................77
8.2.9 Level.......................................................................................................................................80
8.3 Measuring accuracy of SITRANS P420.................................................................................81
8.3.1 Reference conditions.............................................................................................................81
8.3.2 Effect of auxiliary power supply..............................................................................................81
8.3.3 Gauge pressure.....................................................................................................................81
8.3.4 Gauge pressure from the differential pressure series ...........................................................82
8.3.5 Absolute pressure from gauge and differential pressure series.............................................84
8.3.6 Absolute pressure with front-flush diaphragm........................................................................85
8.3.7 Gauge pressure with front-flush diaphragm...........................................................................86
8.3.8 Differential pressure and flow.................................................................................................86
8.3.9 Level.......................................................................................................................................90
8.4 Operating conditions..............................................................................................................91
8.5 Vibration resistance................................................................................................................95
8.6 Construction...........................................................................................................................97
8.7 Torques................................................................................................................................101
8.8 Display, keyboard and auxiliary power.................................................................................101
8.9 Certificates and approvals....................................................................................................102
A Appendix A...............................................................................................................................................105
A.1 Technical support.................................................................................................................105
A.2 Certificates...........................................................................................................................106
Index.........................................................................................................................................................107
Table of contents
SITRANS P320/P420 with 4 to 20 mA/HART
Compact Operating Instructions, 09/2018, A5E38874562-AB 5