You can find information on how to set the zero point for absolute pressure in section Adjusting
zero point (absolute pressure) (Page 121)
Note
To set the zero point, first disable Functional Safety.
10.6.2
Documenting a proof test
Documentation of the results of the proof test must be part of the safety management system
of the installation. Errors that are of critical importance for Functional Safety must be reported
to Siemens Technical Support.
10.7
Repair and service
NOTICE
Repair and service
Repair and service work may only be performed by personnel authorized by Siemens.
Functional Safety
10.7 Repair and service
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
179