IM-P343-35 CTLS Issue 5
60
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TRANSLATION RUN OVER
SP500 Electropneumatic Smart Positioner
9.8 STRVL and RTIME - valve diagnostics
Provides visibility of total number of valve strokes (STRVL) and total valve run time in hours (RTIME).
9.8.1 STRVL - total stem travel
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Programming notes
The number displayed should be multiplied by a factor of 10 to obtain the total number of complete valve
strokes. A complete valve stroke is as measured in autostroke AUTOS.
The number displayed can be retained (RTAIN) or reset to zero (RESET). Press the key to advance to
RTAIN/RESET. Press and keys to toggle selection.
Press key to accept the displayed selection and advance to run time RTIME.
Commissioning notes
Information displayed should be used in conjunction with total runtime RTIME to assess the valve usage
and evaluate the need for routine maintenance, replacement of stem seals etc. The number displayed
should be multiplyed by a factor of 10 to obtain the local total number of complete valve strokes. (A
complete valve stroke is as measured in autostroke (AUTOS)). The maximum possible display value is
99999. If this value is exceeded, the display will roll over to zero and an ! will be displayed. To retain
the displayed value press the enter key and select RTAIN. If the valve is dismantled for maintenance
inspection etc. The value can be reset if required by selecting RESET.
9.8.2 RTIME - total valve run time in hours
•
Programming notes
The number displayed is the total valve run time in hours. Run time is defined as the total time the positioner
is receiving a control signal.
The number displayed can be retained (RTAIN) or reset to zero (RESET). Press the key to advance to
RTAIN/RESET. Press and keys to toggle selection.
Press key to accept the displayed selection and return to displaying % travel.
Commissioning notes
Information displayed should be used in conjunction with total valve strokes (STRVL) to assess the
valve usage and evaluate the need for routine maintenance, replacement of stem seals etc. To retain
the displayed value press key and select RTAIN. If the valve is dismantled for maintenance inspection
etc. The value can be reset to zero if required by selecting RESET.
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