Flowserve ValveSight Diagnostics User Manual
Page 34
ValveSight Diagnostics for HART User Manual FCD VSENSF0001-02-AQ 03/15
34
The second calibration screen shows the detailed status of the calibration as it takes place.
Calibration Console
The “Calibration Console” box displays the Date Last Calibrated and Last Calibrated By fields. The Today’s Date field is
automatically updated. Enter the user’s initials into the New Calibration By field.
Supply Pressure
The “Supply Pressure” box must have the current supply pressure entered for an accurate calibration. The default for this
field is the pressure used for the last calibration.
Calibration Flags
The “Calibration Flags” box indicates alarms that can become active if errors occur during the calibration. Supply Pres-
sure Low indicates a lack of supply pressure. Port 1 and Port 2 indicate errors with the pressure sensors.
Port Gages
The “Port Gages” box shows a graphical representation of Port 1 and Port 2 gages with the pressure based on the last
calibration, and fields with the A/D Count coming from the sensors in the positioner. The A/D Counts are shows strictly as
a diagnostic to indicate there is a signal coming from the sensors and also to estimate the stability of the pressures. If the
A/S counts read zero then the sensor has most likely failed and should be replaced.
Calibration Status
The “Calibration Status” box updates any progress of the current calibration. Depending on the latency of the communi-
cation connection to the positioner not all steps may be shown during a calibration.
Data Management
The
Start Calibration button initiates the calibration process and the Abort button ends the calibration in process and
resumes normal operation. Always allow the calibration to finish before navigating away from the Calibration screen.
Otherwise use the
Abort button before navigating away.
8.2 Stroke
The Stroke calibration is a combined calibration that calibrates the travel of the valve position (zero and span). If auto
tuning is enabled the gain values for the positioner are also calculated.