Parameter reference
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
149
Acknowledge Status (4.4.8.)
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.
Acknowledge (4.4.9.)
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 Service Schedule Status 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.
Calibration Schedule (4.5.)
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
.
Performing a reset to
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.)
.
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.
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