Troubleshooting guide

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15. Now use the DEC and INC buttons to position
the slide valve until a value close to 300
millivolts is on the screen. Then, press the “Set
Min” button in the capacity or volume slide
valve window to tell the controller that this is
the minimum millivolt position. Note: The
value in the “Current Cap” or “Current Vol”
window has no meaning right now.
16. Use the INC button to rotate the actuator
towards its maximum position while watching
the millivolt readout on the controller screen.
Discontinue pressing the INC button when the
millivolt reading in the “Current” window is
approximately 9200 millivolts (7900 millivolts
for the 2783J qualified analog boards applies to
only VISSION). You are nearing the mechani-
cal stop position.
17. Pulse the INC button to carefully move the
slide valve until the millivolt readout “satu-
rates”, or stops increasing. This is around 9500
millivolts (8400 millivolts for 2783 qualified
analog boards applies to only VISSION).
Record millivolt maximum reading.
18. Pulse the DEC button until the millivolts just
start to decrease. (This is the point where the
channel drops out of saturation).
Adjust millivolt value to 300 millivolts below
recorded maximum millivolts in step #17.
19. Press the “Set Max” button.
20. Press the “Main” button to complete calibra-
tion and exit the “Slide Calibration” screen.
The controller will automatically energize the
actuator and drive it back to its minimum
position (below 5%) for pre-start-up.
21. Note: Now the “Current Cap” or the “Current
Vol” value will be displayed in the window on
the “Main” screen and the “Slide Calibration”
screen.
Calibration Procedure of Optical Actuators
22. Gently lower the plastic cover over the
top of the actuator to where it contacts the
base and o-ring seal. After making sure
the cover is seated properly, gently
tighten the four #10 screws. Caution:
The plastic cover will crack if the
screws are over tightened.
23. Enable the “Slide Non-Movement
Alarm” by going to the “Setup” menu and
choosing “Alarm Enable” for the “Slide
Non-Movement Option”.
24. This completes the calibration for this
channel either capacity or volume.
Repeat the same procedure to the other
channel.