User's Manual

Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
147
Calibration Schedule (4.5.)
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 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 Total 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.