SITRANS FUS080 transmitter
Operating Instructions, 07/2012, A5E03059912-02
49
Service and maintenance
8
8.1 Maintenance
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.
8.2 Battery replacement
NOTICE
It is recommended to replace the battery pack every 6 years.
Note
Battery lifetime
The battery lifetime depends on the use of the different functions, e.g. the use of MODBUS
communication will decrease the lifetime significantly, see Technical data" (Page 31)
For the use of add-on modules with MODBUS communication, the use of mains-powered
transmitters is recommended. Typical liftetime of a dual battery pack with nominal working
pulse output frequency of 20 Hz is approximately 4.2 years.
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