User's Manual

Page 102 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
mmmmm
Parameters
4.2.8. Acknowledge Status
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.
4.2.9. Acknowledge
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
a) Open the menu View – Device Status and click on the tab Maintenance.
b) In the Device Lifetime section, click on Acknowledge Warnings.
To acknowledge a reminder via the handheld programmer:
a) Press RIGHT arrow twice to open parameter view and activate Edit
Mode.
b) Press RIGHT arrow to acknowledge the reminder.
4.3. Remaining Sensor Lifetime
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.
To access these parameters via SIMATIC PDM:
• Open the menu Device – Maintenance and select the Remaining Sensor
Lifetime 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 Snooze to add a year to the Total Expected Sensor Life.
•Click on Sensor Replaced to restart the timer and clear any fault messages.
Notes:
• 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.).