User's Manual

Parameter reference
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 01/2014, A5E32221411-AB
165
Acknowledge Status (4.2.8.)
Indicates which level of maintenance reminder has been acknowledged.
Acknowledge (4.2.9.)
Acknowledges the current maintenance reminder.
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.
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
(via AMS Device Manager only) see
Remaining Sensor Lifetime
in Maintenance &
Diagnostics (LTB) (Page 89).
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 AMS Device Manager see
Remaining Sensor Lifetime
in
Maintenance & Diagnostics (LTB) (Page 89).
Lifetime (expected) (4.3.1.)
Allows you to override the factory default.
Values
Units: years
Range: 0 to 20 years
Default: 10.00 years