Siemens SITRANS LR250 Operating Instructions Manual page 145

Remaining Device Lifetime (4.2.)
Note
• Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly
stated.
• Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Service/Calibration schedules, based on operating hours instead of a calendar-based
schedule. See also Remaining Sensor Lifetime (4.3.), Service Schedule (4.4.), and
Calibration Schedule (4.5.).
• Performing a reset to Factory Defaults will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Remaining Device Lifetime parameters in hours or
days (via SIMATIC PDM only) see Lifetime Expected (4.2.1.).
The device tracks itself based on operating hours and monitors its predicted lifetime. You can
modify the expected device lifetime, set up schedules for maintenance reminders, and
acknowledge them.
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 08/2014, A5E32221386-AC
Parameter reference
143