Maintenance And Repair Work - Siemens SITRANS P500 Kompaktbetriebsanleitung

CAUTION
Releasing key lock
Improper modification of parameters could influence process safety.
● Make sure that only authorized personnel may cancel the key locking of devices for safety-related applications.
CAUTION
Hot surfaces
Danger of burns during maintenance work on parts having surface temperatures exceeding 70 °C (158 °F).
● Take corresponding protective measures, for example by wearing protective gloves.
● After carrying out maintenance, remount touch protection measures.
NOTICE
Electrostatic-sensitive devices
The device contains electrostatic-sensitive devices (ESD). ESD can be destroyed by voltages far too low to be detected by
humans. These voltages can occur if you simply touch a component part or the electrical connections of a module without
being electrostatically discharged. The damage to a module caused by overvoltage cannot normally be detected
immediately; it only becomes apparent after a longer period of operating time has elapsed.
Protective measures against the discharge of static electricity:
● Make sure that no power is applied.
● Before working with modules, make sure that you discharge static from your body, for example by touching a grounded
object.
● Devices and tools used must be free of static charge.
● Hold modules only by their edges.
● Do not touch connector pins or conductor tracks on a module with the ESD notice.
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 application-specific electronics data (e.g.:
downscaling, additional electrical damping) are located in the measuring cell EEPROM. Application-specific data are lost
when the measuring cell is changed. Application-specific data are not lost when the application electronics are changed.
SITRANS P500 with HART
A5E02344532-03, 04/2013
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