Siemens SITRANS P - Cleaning; Servicing the Remote Seal Measuring System; Maintenance and Repair Work

7.2 Cleaning
Cleaning the enclosure
• Clean the outside of the enclosure with the inscriptions and the display window using a cloth
moistened with water or a mild detergent.
• Do not use any aggressive cleansing agents or solvents, e.g. acetone. Plastic parts or the
painted surface could be damaged. The inscriptions could become unreadable.
NOTICE
Improper cleaning of diaphragm
Damage to device. The diaphragm can be damaged.
• Do not use sharp or hard objects to clean the diaphragm.
7.2.1 Servicing the remote seal measuring system
The remote seal measuring system usually does not need servicing.
If the mediums are contaminated, viscous or crystallized, it could be necessary to clean the
diaphragm from time to time. Use only a suitable solvent to remove the deposits from the
diaphragm. Do not use corrosive cleaning agents. Prevent the diaphragm from getting damaged
due to sharp-edged tools.
7.3 Maintenance and repair work
WARNING
Impermissible repair of explosion protected devices
Risk of explosion in hazardous areas
• Repair must be carried out by Siemens authorized personnel only.
CAUTION
Hot surfaces
Risk 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.
Service and maintenance
7.3 Maintenance and repair work
SITRANS P320/P420
56 Compact Operating Instructions, 01/2021, A5E38874562-AC