Service and maintenance
8.1
Basic safety information
Impermissible repair of the device
• Repair must be carried out by Siemens authorized personnel only.
Releasing button lock
Improper modification of parameters could influence process safety.
• Make sure that only authorized personnel may cancel the button locking of devices for
54
WARNING
CAUTION
safety-related applications.
SITRANS LR250 with FOUNDATION FIELDBUS
Compact Operating Instructions, 09/2021, A5E48453221-AB
8