Service Schedule - Siemens SITRANS LR250 Operating Instructions Manual

4.3.6. Reminder 2 (Demanded)
If Remaining Lifetime (4.3.3.) is equal to or less than this value, the device
generates a Maintenance Demanded reminder.
Values
a) Modify limit values as required.
b) Set Reminder Activation (4.3.4.) to the desired option.
4.3.7. Maintenance Status
Indicates which level of maintenance reminder is active.
To display the level of maintenance reminder in AMS Device Manager see
Extended Diagnostics under Device Diagnostics (Level Transducer Block -
LTB) on page 73.
4.3.8. Acknowledge Status
Indicates which level of maintenance reminder has been acknowledged.
4.3.9. Acknowledge
Acknowledges the current maintenance reminder.
To acknowledge an alert via the handheld programmer:
a) Press RIGHT arrow
Mode.
b) Press RIGHT arrow

4.4. Service Schedule

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 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 (via
AMS Device Manager only) see Service Schedule on page 60.
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 Alerts, and acknowledge them.
The maintenance warnings and alarms are communicated to the end user through
status information. This information can be integrated into any Asset Management
system.
To access these parameters via AMS Device Manager see Service Schedule under
Maintenance & Diagnostics (LTB) on page 59.
7ML19985KL01
Range: 0 to 20 years
Default: 0.019 years
twice to open parameter view and activate Edit
to acknowledge the alert.
SITRANS LR250 (FF) – OPERATING INSTRUCTIONS Page 123