Siemens SITRANS L Operating Instructions Manual page 154

Parameter reference
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 AMS Device Manager see Calibration Schedule under
Maintenance & Diagnostics (RESOURCE) (Page 95).
Calibration Interval (4.5.1.)
User-configurable recommended time between product calibrations.
Values
Time Since Last Calibration (4.5.2.)
Time elapsed since last calibration. Can be reset to zero after performing a calibration.
To reset to zero:
• Via the handheld programmer, manually reset Time Since Last Calibration (4.5.2.) to
zero.
Time Until Next Calibration (4.5.3.)
Read only. Calibration Interval (4.5.1.) less Time Since Last Calibration (4.5.2.).
Activation of Reminders (4.5.4.)
Allows you to enable a maintenance reminder.
Options
1. First set the limit values in Reminder 1 before Calibration (Required) (4.5.5.)/Reminder 2
before Calibration (Demanded) (4.5.6.).
2. Select the desired Activation of Reminders option.
Reminder 1 before Calibration (Required) (4.5.5.)
If Time Until Next Calibration (4.5.3.) is equal to or less than this value, the device
generates a Maintenance Required reminder.
Values
154
Units: years
Range: 0 to 20 years
Default: 1.0 year
* Timer OFF
ON NO LIMITS
ON - REMinder 1 (Maintenance Required) checked
ON - REMinders 1 and 2 checked
ON—REMinder 2 (Maintenance Demanded) checked
Range: 0 to 20 years
Default: 0.164 years
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH