Technical information

IM-P343-29 CH Issue 5 53
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
.
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
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.