User's Manual

Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
139
To access these parameters via SIMATIC PDM:
● Open the menu
Device – Maintenance
and select the
Remaining Sensor Lifetime
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
Snooze
to add a year to the Total Expected Sensor Life.
● Click on
Sensor Replaced
to restart the timer and clear any fault messages.
Time Units
Options
a)
Hours; days; years
Default: years
a)
Selectable only via SIMATIC PDM.
Lifetime Expected (4.3.1.)
Note
The device always operates in years. Changing the units affects only the parameter view of
Remaining Sensor Life parameters in SIMATIC PDM.
Allows you to override the factory default.
Values
Units
a)
: hours, days, years
Range: 0 to 20 years
Default: 10.00 years
a)
Units are selectable only via SIMATIC PDM.
Time in Operation (4.3.2.)
The amount of time the sensor has been operating. Can be reset to zero after performing a
service or replacing the sensor.
To reset to zero:
● In SIMATIC PDM, open the menu
Device – Maintenance
, click on the
Remaining Sensor
Lifetime
tab, and click on
Sensor Replaced
to restart the timer and clear any fault messages.
● Via the handheld programmer, manually reset
Time in Operation (4.3.2.)
to zero.