Maintenance - Fisher FIELDVUE DVC6200p Instruction Manual

Instruction Manual
D103563X012
D Drive Signal Value indicates the drive signal, as a percentage of the maximum drive available, going from the
printed wiring board to the I/P converter. In most applications, the drive signal ranges between 50% and 75% of the
maximum drive signal.
D Travel/Pressure State indicates if the instrument is being used for travel control (position control) or as an I/P
(pressure control).
D Temperature is the internal temperature of the instrument in either degrees Fahrenheit or Celsius.
Run Time Variables
Max/Min Recorded Temperature
D Maximum Temperature shows the maximum temperature the instrument has experienced since installation.
D Maximum Temperature Time shows the date and time when the maximum temperature occurred.
D Minimum Temperature shows the minimum temperature the instrument has experienced since installation.
D Minimum Temperature Time shows the date and time when the minimum temperature occurred.
Max/Min Recorded Supply Pressure
D Maximum Supply Pressure shows the maximum supply pressure the instrument has experienced since installation.
D Maximum Supply Pressure Time shows the date and time when the maximum supply pressure occurred.
D Minimum Supply Pressure shows the minimum supply pressure the instrument has experienced since installation.
D Minimum Supply Pressure Time shows the date and time when the minimum supply pressure occurred.

Maintenance

Performance Tuner
WARNING
During performance tuning the valve may move, causing process fluid or pressure to be released. To avoid personal injury
and property damage caused by the release of process fluid or pressure, isolate the valve from the process and equalize
pressure on both sides of the valve or bleed off the process fluid.
Performance Tuner is used to determine digital valve controller tuning. It will move the valve slightly and monitor the
effects of small tuning changes until an optimum control response is achieved. Because the Performance Tuner can
detect internal instabilities before they become apparent in the travel response, it can generally optimize tuning more
effectively than manual tuning.
Viewing Device Variables and Diagnostics
June 2017
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