Changing The Measuring Cell And Application Electronics; Cleaning - Siemens SITRANS P DS III Operating Instructions Manual

Repair and maintenance

11.3 Cleaning

In case of defect, you can replace the electronic unit by following the warning notes and the
provided instruction manual.
See also
Error display (Page 74)
11.2.4

Changing the measuring cell and application electronics

Related
Each of the individual components "Measuring cell" and "Electronics" has a non-volatile
memory (EEPROM).
Measuring cell data (e.g.: measuring range, measuring cell material, oil filling) and
application-specific electronics data (e.g.: downscaling, additional electrical damping) are
located in the measuring cell EEPROM. Application-specific data is lost when the measuring
cell is changed. Application-specific data is not lost when the application electronics is
changed.
You can backup application-specific data before changing the measuring cell and reload it
afterwards. Use an input device which supports the PROFIBUS protocol (e.g. PROFIBUS
communicator, PC with PROFIBUS modem and PROFIBUS software or PC with PROFIBUS
modem and PDM software). Factory settings will be used if application-specific data is not
backed up before the measuring cell is changed.
Technical developments enable advanced functions to be implemented in the firmware of the
measuring cell or application electronics. Further technical developments are indicated by
modified firmware statuses (FW). The firmware status does not affect whether the modules
can be replaced. However, the scope of functions is limited to the function of existing
components.
If a combination of certain firmware versions of measuring cell and application electronics is
not possible for technical reasons, the device will identify this problem and go into "Fault
current" mode. This information is also provided over the PROFIBUS interface.
11.3 Cleaning
Dust layers above 5 mm
Danger of explosion in hazardous areas. Device may overheat due to dust build up.
• Remove dust layers in excess of 5 mm.
186
WARNING
SITRANS P DS III/P410 with PROFIBUS PA
Operating Instructions, 02/2016, A5E00053276-08