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WARNING
Electrostatic charge
Risk of explosion in hazardous areas if electrostatic charges develop, for example, when
cleaning plastic surfaces with a dry cloth.
● Prevent electrostatic charging in hazardous areas.
9.4
Maintenance and repair work
The device is maintenance-free. However, a periodic inspection according to pertinent
directives and regulations must be carried out.
An inspection can include check of:
● Ambient conditions
● Seal integrity of the process connections, cable entries, and cover screws
● Reliability of power supply, lightning protection, and grounds
NOTICE
Repair and service must be carried out by Siemens authorized personnel only.
Note
Siemens defines flow sensors as non-repairable products.
WARNING
Impermissible repair of the device
● Repair must be carried out by Siemens authorized personnel only.
WARNING
Impermissible repair and maintenance of the device
● Repair and maintenance must be carried out by Siemens authorized personnel only.
WARNING
Impermissible repair of explosion protected devices
Risk of explosion in hazardous areas
● Repair must be carried out by Siemens authorized personnel only.
Service and maintenance
9.4 Maintenance and repair work
SITRANS FC330
Operating Instructions, 01/2019, A5E44030648-AB
161