Siemens SITRANS LR200 7ML5422, Руководство по эксплуатации

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SITRANS LR200 with mA/HART
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Operating Instructions, 05/2019, A5E32337676-AE
7.4.3 Remaining sensor lifetime (4.3.)
Note
•
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 Remaining device lifetime (4.2.) (Page 121), Service schedule (4.4.)
(Page 126), and Calibration schedule (4.5.) (Page 129).
•
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 Device Lifetime parameters in hours or
days (via SIMATIC PDM only) see Lifetime expected (4.3.1.) (Page 124).
Factory setting: years
Setting range
1)
: hours, days, years
Purpose: 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.
Description: To access these parameters via SIMATIC PDM:
1.
Open the menu Device – Maintenance and select the Remaining Sen-
sor Lifetime tab.
2. After modifying values/units as required, click on Write to accept the
change, and Read to view the effect of the change.
3. Click on Snooze to add a year to the Total Expected Sensor Life.
4. Click on Sensor Replaced to restart the timer and clear any fault mes-
sages.
1) Selectable only via SIMATIC PDM.
7.4.3.1 Lifetime expected (4.3.1.)
Note
The device always operates in years. Changing the units affects only the parameter view of
the Remaining Device Lifetime parameters in SIMATIC PDM.
Factory setting: 10.00 years
Setting range: 0 to 20 years
Purpose: Allows you to override the factory default.
Description: Units: hours, days, years, are selectable only via SIMATIC PDM.
7.4.3.2 Time in operation (4.3.2.)
Read only. The amount of time the sensor has been operating.