Cleaning; Servicing The Remote Seal Measuring System; Maintenance And Repair Work - Siemens 7MF03 Series Compact Operating Instructions

Service and maintenance

7.3 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
Device damage. 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
Impermissible repair and maintenance of the device
● Repair and maintenance must be carried out by Siemens authorized personnel only.
Impermissible repair of explosion protected devices
Risk of explosion in hazardous areas
● Repair must be carried out by Siemens authorized personnel only.
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WARNING
WARNING
SITRANS P320/P420 with 4 to 20 mA/HART
Compact Operating Instructions, 09/2018, A5E38874562-AB