Martin
®
ERA 700 Performance IP User Manual Rev. C
21
Disabling pan and tilt feedback
The fixture features pan/tilt position feedback sensors to ensure accurate positioning of the head.
Pan/tilt feedback is enabled by default. If you experience unexpected positioning behavior, it can be
useful to disable the feedback system by opening the SERVICE menu and selecting PAN/TILT
FEEDBACK
→
OFF.
Calibration settings
Martin fixtures are adjusted and calibrated at the factory, and further calibration should only be
necessary if fixtures have been subjected to abnormal shocks during transport or if normal wear and
tear has affected alignment after an extended period of use. You can also use calibration to fine-tune
fixtures for a particular location or application.
The SERVICE
→
CALIBRATION menu lets you define values in the fixture software to adjust the
positions of pan, tilt and effects relative to the DMX values the fixture receives. Creating calibration
offsets like this allows you to fine-tune fixtures and achieve uniform behavior in multiple fixtures.
You can calibrate focus on each individual gobo (a feature that can be especially useful if you use
custom
gobos). Calibrating focus at the open gobo position lets you adjust the fixture’s beam between
soft-edged and hard-edged when no gobo is being projected.
We recommend the following procedure
to adjust the fixture’s calibration settings:
1.
Aim a reference fixture and the fixtures that you want to calibrate at a flat surface. You can
calibrate fixtures one at a time or line up multiple fixtures in a row. Apply power and set pan, tilt and
effects to the same DMX values.
2.
In each fixture, scroll through the effects in the SERVICE
→
CALIBRATION menu and adjust the
position of any effects that need calibration while comparing the light output with the reference
fixture. The calibration range available varies depending on the effect.
3.
After selecting a value, press ENTER to confirm. The fixture will remember any new calibration
values that you have set, and the new positions will not be affected by powering the fixture off and
on. To return to the list of effects, press MENU.
Loading factory default calibration values
The fixture keeps the original factory-set calibration values in memory. You can erase any custom
calibration values that you have defined using the procedure outlined above and reload the default
factory calibration values at any time by applying a SERVICE
→
CALIBRATION
→
LOAD DEFAULTS
→
LOAD command.
Overwriting factory default calibration values
It is possible to overwrite the factory-set calibration values and replace them with the currently defined
calibration values, but take care when doing this. Please contact Martin Service if you have any
questions about making this change.
Important! Overwriting factory default calibration values with custom values is permanent. If
you have set a custom value and applied a
CALIBRATION
→
LOAD DEFAULTS
→
SAVE
command, you will not be able to recover the original factory default value.
To overwrite the factory default calibration values:
1.
Set new calibration values for the effects that you want to recalibrate by adjusting them as
described above.
2.
Apply a SERVICE
→
CALIBRATION
→
LOAD DEFAULTS
→
SAVE command.
3.
Confirm that you want to permanently overwrite the factory default values by applying a SERVICE
→
CALIBRATION
→
SAVE SETTING
→
SAVE command.