Siemens 7ML5431 Operating Instructions Manual page 142

Parameter reference
Maintenance Status (4.2.7.)
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 Device Lifetime Status window.
Acknowledge Status (4.2.8.)
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 Device Lifetime Status window.
Acknowledge (4.2.9.)
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 Device Lifetime section, click on Acknowledge Warnings.
To acknowledge a reminder via the handheld programmer:
1. Press RIGHT arrow
2. Press RIGHT arrow
Remaining Sensor Lifetime (4.3.)
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
Maintenance/Service schedules, based on operating hours instead of a calendar-based
schedule. See also Remaining Device Lifetime (4.2.), Service Schedule (4.4.), 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 Remaining Sensor Lifetime parameters in hours or
days (via SIMATIC PDM only) see Lifetime Expected (4.3.1.).
The device monitors the predicted lifetime of the sensor (the components exposed to the
vessel environment). You can modify the expected sensor lifetime, set up schedules for
maintenance reminders, and acknowledge them.
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twice to open parameter view and activate Edit Mode.
to acknowledge the reminder.
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG