Operating Instructions

Table Of Contents
1. Modify values as required.
2. Set Activation of Reminders (4.3.4.) to the desired option.
Maintenance Status (4.3.7.)
Indicates which level of maintenance reminder is active.
In SIMATIC PDM, open the menu View – Device Status, click on the Maintenance tab, and
check the Sensor Lifetime Status window.
Acknowledge Status (4.3.8.)
Indicates which level of maintenance reminder has been acknowledged.
In SIMATIC PDM, open the menu View – Device Status, click on the Maintenance tab, and
check the Sensor Lifetime Status window.
Acknowledge (4.3.9.)
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
1. Open the menu View – Device Status and click on the Maintenance tab.
2. In the Sensor Lifetime section, click on Acknowledge Warnings.
To acknowledge a reminder via the handheld programmer:
1. Press RIGHT arrow twice to open parameter view and activate Edit Mode.
2. Press RIGHT arrow to acknowledge the reminder.
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
Parameter reference
SITRANS LR250 with mA/HART
138 Operating Instructions, 10/2019, A5E32220602-AG