User's Manual

Parameter reference
SITRANS LR250 (HART)
Operating Instructions, 01/2014, A5E32220602-AB
153
Service Schedule (4.4.)
Note
•
Four sets of parameters allow you to monitor the Device/Sensor Lifetimes and set up
Maintenance/Service schedules, based on operating hours instead of a calendar-based
schedule. See also
Remaining Device Lifetime (4.2.)
,
Remaining Sensor Lifetime (4.3.)
,
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 Service Interval parameters in hours or days (via
SIMATIC PDM only) see
Service interval (4.4.1.)
.
The device tracks service intervals based on operating hours and monitors the predicted lifetime
to the next service. You can modify the Total Service Interval, set schedules for maintenance
reminders, and acknowledge them.
The maintenance warnings and reminders are communicated to the end user through status
information. This information can be integrated into any Asset Management system. For optimal
use, we recommend that you use SIMATIC PCS7 Asset Management Software in conjunction
with SIMATIC PDM.
To access these parameters via SIMATIC PDM:
● Open the menu
Device – Maintenance
and select the
Service 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
Service Performed
to restart the timer and clear any fault messages.
Time Units
Options
a)
Hours; days; years
Default: years
a)
Selectable only via SIMATIC PDM.