Flowserve Logix MD+ ValveSight - Manual (Page 46)

ValveSight™ Diagnostics DTM Manual for Logix MD+ Positioner with HART®
FCD- LGENSF0014-00
© Flowserve Corporation
46
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Definition: A Factory Pressure Calibration has not been performed.
Unlike a regular pressure sensor calibration, a Factory Pressure
Calibration saves the calibration values to memory, making them
available should a factory reset be performed. Proper pressure sensor
calibration is required for proper pressure sensing and diagnostics.
Calibration values from a regular pressure sensor calibration will be lost
when a factory reset is performed. Typically no pressure calibration is
required with a new positioner.
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Possible Solutions: After replacing a main board or a pressure sensor
board, perform a Factory Pressure Calibration. To do this, see the
Pressure Sensor Board Removal and Installation section of the IOM.
Friction Calibration Required
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Definition: No friction calibration has been performed since the last
factory reset. The friction calibration determines a preliminary friction
value, spring forces and direction and other information used for proper
diagnostics. If no friction calibration is performed, the positioner will
soon determine the operating friction, but other diagnostic information
will be missing.
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Possible Solutions: Perform a Friction Calibration using the display
menu, handheld, or Sensor Calibration page of the DTM. See the
Calibration section of the IOM for warnings.
Mode Status
Digital Command Mode
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Definition: The input command is set by a digital HART command
instead of the 4-20 mA signal.
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Possible Solutions: The input command source can be changed back
to the 4-20 mA signal by using a handheld, the Dashboard page of the
DTM, or performing a manual Command Reset. Perform the
Command Reset during a QUICK-CAL by holding both the UP and
DOWN buttons and briefly pressing the QUICK-CAL/ACCEPT button.
A new QUICK-CAL must be performed after resetting.