User's Manual

Page 108 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
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Parameters
4.4.8. Acknowledge Status
Indicates which level of maintenance reminder has been acknowledged.
Open the menu View – Device Status, click on the Maintenance tab and check
the Service Schedule Status window.
4.4.9. Acknowledge
Acknowledges the current maintenance reminder.
To acknowledge a reminder via SIMATIC PDM:
a) Open the menu View – Device Status and click on the Maintenance tab.
b) In the Service Schedule Status 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.
4.5. Calibration Schedule
The device tracks calibration intervals based on operating hours and monitors the
predicted lifetime to the next calibration. You can modify the Total Calibration Interval,
set schedules for maintenance reminders, and acknowledge them.
To access these parameters via SIMATIC PDM:
• Open the menu Device – Maintenance and select the Calibration 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 Calibration Performed 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.), Remaining
Sensor Lifetime (4.3.), and Service Schedule (4.4.).
• Performing a reset to Factory Defaults will reset all the Maintenance Schedule
parameters to their factory defaults.
• The device operates in years. To view Calibration Interval parameters in hours or
days (via SIMATIC PDM only) see Calibration Interval (4.5.1.).