FISHER DVC2000 CONTROL VALVE CALIBRATION

Analog Input Calibration

1. Connect the current source to the +11 and -12 terminals of the DVC2000 module.

2. From the Home Screen, press the button down arrow (▼) arrive at the menu ‘ANALOG INPUT CALIBRATION’ then press button right arrow (►).

3. A message will appear ‘VALVE WILL MOVE PRESS ► FOR 3 SEC’ then press button right arrow (►)for 3 seconds, message will appear ‘APPLY 4MA THEN PRESS ►’

4. Inject 4 mA from current source, then press button right arrow (►). Message will apear ‘APPLY 20MA THEN PRESS ►’ .

5. Inject 20 mA fromcurrent source, then press button right arrow (►).

6. Message will appear ‘SAVE & EXIT? PRESS ►’, then press button right arrow (►).

7. Analog input calibration done.

 Position Transmitter Calibration

1. Connect current source to terminal +11 dan -12 on the module DVC2000, then inject current free between 4-20 mA only as a power supply.

2.Connect the multimeter to the terminal +31 dan -32 on the module DVC2000.

3. From view Home Screen, then press down arrow (▼) until the menu ‘POSITION TRANSMITTER CAL’, then press button right arrow (►) .

4. LCD will show ‘MA OUT WILL CHANGE PRESS ► FOR 3 SEC, Press the button righ arrow (►) for 3 seconds.

5. LCD will display ‘USE ▲OR ▼ TO SEND 4MA’ , do adjust the mA output by pressing the button up (▲) or down (▼) until the multimeter shows 4.00 mA, then press the button right arrow (►).

6. LCD will show ‘USE ▲OR ▼ TO SEND 20MA’ , do adjust the mA output by pressing the button up (▲) atau down (▼) until the multimeter shows 20.00 mA, then press button right arrow (►).

7. LCD will display‘SAVE & EXIT? PRESS ►’, then press button right arrow (►). 

Auto Calibration  Control Valve

1. Connect the current source to terminals +11 and -12 and provide a 4mA input to the DVC2000 module.

2. Connect the multimeter to terminals +31 and -32 on the DVC2000 module.

3. From the Home Screen display, press the down arrow (▼) button until you reach the 'TRAVEL CALIBRATION' menu, press the right button (►) , select 'CALIBRATION AUTOMATIC', press the right button (►).

4. The LCD will display 'VALVE WILL MOVE PRESS FOR 3 SEC' , press the right button (►).

5. Calibration will run automatically (finding 100%, finding 0%, finding 50%).

6. When the calibration is complete, the message 'CALIBRATION COMPLETE' will appear.

7. Perform local stroking with inject current (0.25,50,75,100)% then (100,75,50,25,0)%, observe valve movement, mark the stem position with a permanent marker, record the mA indication on the multimeter.

8. Normalize the cable connection from DCS to DVC2000 module.

9. Do stroke remotely from the Control Room.