Calibration Schedule - Siemens Sitrans LR250 Operating Instructions Manual

4.5. Calibration Schedule

Notes:
• 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 Device Lifetime (4.2.), Remaining
Sensor Lifetime (4.3.), and Service Schedule (4.4.).
• Performing a reset to Factory Defaults will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Calibration Interval parameters in hours or
days (via SIMATIC PDM only) see Calibration Interval (4.5.1.).
The device tracks calibration intervals based on operating hours and monitors the
predicted lifetime to the next calibration. You can modify the Calibration Interval, set
schedules for maintenance reminders, and acknowledge them.
To access these parameters via SIMATIC PDM:
• Open the menu Device – Maintenance and select the Calibration Schedule tab.
• After modifying values/units as required, click on Write to accept the change,
and Read to view the effect of the change.
• Click on Calibration Performed to restart the timer and clear any fault
messages.
7ML19985JF04 SITRANS LR250 (PROFIBUS PA) – OPERATING INSTRUCTIONS Page 103