SONO 3500 CT
Operating Instructions, 07/2019, VI.SH.P2.02
53
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
Repair and service must be carried out by Danfoss authorized personnel only.
Note
The flow sensors are defined as non-repairable products.
8.2
Battery replacement
NOTICE
Battery replacement interval
It is recommended to replace the battery pack at the latest after 6 years.