User's Manual

A5E32337683 SITRANS LR260 (HART) – OPERATING INSTRUCTIONS Page 75
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Parameters
4.16. Service Interval
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 Alerts, and acknowledge them.
The maintenance warnings and alarms 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 Interval 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.
4.16.1. Time Last Serviced (TIME LAST SERV.)
Time elapsed since device was last serviced in selected units. Can be reset to
zero via the handheld programmer (after performing a service.)
To reset to zero:
• In SIMATIC PDM, open the menu Device – Maintenance, click on the
Service Interval tab, and click on Service Performed to restart the timer
and clear any fault messages.
• Via the handheld programmer, manually reset Time Last Serviced to zero.
Notes:
• 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, Service Interval,
and Calibration Interval.
• The device operates in years. To view Remaining Sensor Lifetime parameters in
hours or days (via SIMATIC PDM only) see Total Expected Sensor Life.
1)
In device, Maintenance parameters are displayed in years. In SIMATIC PDM, mainte-
nance parameter units are user selectable.