Maintenance And Repair Work; Defining The Maintenance Interval; Checking The Gaskets; Changing The Measuring Cell And Application Electronics - Siemens SITRANS P500 Instrucciones De Operación

6.2

Maintenance and repair work

6.2.1

Defining the maintenance interval

WARNING
No maintenance interval has been defined
Device failure, device damage, and risk of injury.
Define a maintenance interval for regular tests in line with device use and empirical values.
•
The maintenance interval will vary from site to site depending on corrosion resistance.
•
6.2.2

Checking the gaskets

Note
Checking the gaskets
At regular intervals, check that the enclosure seals of the pressure transmitter satisfy IP66 / IP68. Grease or replace the
gaskets if required.
6.2.3

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 user data of the application electronics
(e.g.: downscaling, additional electrical damping) are located in the measuring cell EEPROM. User data is lost when the
measuring cell is replaced. Application-specific data are not lost when the application electronics are changed.
You can backup user data before changing the measuring cell and reload it afterwards. Use an input device which supports
the HART protocol. (e.g. HART communicator, PC with HART modem and HART software or PC with HART modem and
PDM software). Factory settings will be used if user 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 provided via the HART
interface.
6.3 Cleaning
WARNING
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.
•
NOTICE
Penetration of moisture into the device
Device damage.
Make sure when carrying out cleaning and maintenance work that no moisture penetrates the inside of the device.
•
Cleaning the enclosure
● Clean the outside of the enclosure and the display window using a cloth moistened with water or a mild detergent.
● Do not use aggressive cleaning agents or solvents. Plastic components or painted surfaces could be damaged.
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SITRANS P500 with HART
A5E02344532-04, 12/2014