User's Manual

Parameter reference
SITRANS LR250 (HART)
Operating Instructions, 01/2014, A5E32220602-AB
151
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.
Remaining Lifetime (4.3.3.)
Read only.
Lifetime (Expected) (4.3.1.)
less
Time in Operation (4.3.2.)
.
Activation of Reminders (4.3.4.)
Note
To modify this parameter via SIMATIC PDM it must be accessed via the pull
-down menu
Device – Maintenance
.
Allows you to enable a maintenance reminder.
Options
Reminder 1 (Maintenance Required)
Reminder 2 (Maintenance Demanded)
Reminders 1 and 2
*
OFF
1. First set the values in
Reminder 1 before Lifetime (Required) (4.3.5.)
/
Reminder 2 before
Lifetime (Demanded) (4.3.6.)
.
2. Select the desired
Activation of Reminders
option.
Reminder 1 before Lifetime (Required) (4.3.5.)
If
Remaining Lifetime (4.3.3.)
is equal to or less than this value, the device generates a
Maintenance Required
reminder.
Values
Range: 0 to Lifetime (Expected) (4.3.1.)
Default: 0.164 years
1. Modify values as required.
2. Set
Activation of Reminders (4.3.4.)
to the desired option.