Siemens SITRANS L, Руководство по эксплуатации, Страница: 153 / 269

Parameter reference
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH
153
Reminder 2 before Service (Demanded) (4.4.6.)
If Time Until Next Service (4.4.3.) is equal to or less than this value, the device generates a
Maintenance Demanded reminder.
Values Range: 0 to 20 years
Default: 0.019 years
1. Modify values as required
2. Set Activation of Reminders (4.4.4.) to the desired option.
Maintenance Status (4.4.7.)
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) (Page 98).
Acknowledge Status (4.4.8.)
Indicates which level of maintenance reminder has been acknowledged.
Acknowledge (4.4.9.)
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.
Calibration Schedule (4.5.)
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.) , 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 (via AMS
Device Manager only) see Calibration Schedule under Maintenance & Diagnostics
(RESOURCE) (Page 95).