ETC Ion - Theatre Uwinnipeg

Calibrating a Scroller
You can calibrate the center point of any frame in a scroller using the calibrate feature. This will
ensure that color scroll frames will be centered over the aperture of the fixture when you advance
a color scroll frame-by-frame. You can do this using the virtual encoders or the encoder LCD.
Calibrating a scroller is normally done from the live display.
Note:
It is recommended that you calibrate your scroller frames starting with the last
frame and working backward to the first frame. This will help ensure a complete
and accurate calibration.
Calibration may need to be performed when you initially patch a scroller and may
need to be adjusted through the course of operation as spring tension changes in
a color scroller
To calibrate a scroller from the virtual encoders:
Step 1: In the browser, navigate to Virtual Controls>Encoder. A new window will open in
the CIA.
Step 2: Select {Open as Primary Display} in the CIA. Virtual encoders will open on the
display screen.
Step 3: Select the channel of the scroller you wish to calibrate.
Step 4: Press the [Color] encoder button to the upper right of the LCD. Multiple presses may
be required before the scroller encoder is visible in the virtual encoder display.
Step 5: Use the encoder to move all the way to the last frame of the scroller.
Step 6: Watch the scroller and continue adjusting the frame until it is centered in the desired
position.
Step 7: Click {Calibrate} in the virtual encoder display. The new center position is now stored
for the selected channel.
Step 8: Click {Last} in the virtual encoder display to move to the center point of the previous
frame.
Step 9: Visually verify if the center point of the new frame is accurate. If it is, press {Last} again
to move to the previous frame in the scroll. If not, follow the calibration procedure
again.
Step 10: Repeat steps 6-9 until you have calibrated all of the frames.
Step 11: Press [Live] or [Blind] to close the virtual encoder display.
You can also calibrate from the encoder LCD. This eliminates the need for the virtual encoder
display.
78 Ion Operations Manual