Light Source; Corrections, Referencing - MICRO-EPSILON colorCONTROL ACS7000 Instruction Manual

Operation
Fields with a grey
background re-
quire a selection.
Dark bordered
fields require the
Value
specification of a
value.
colorCONTROL ACS7000
- Strong and rapid fluctuations of the target brightness / color: select manual exposure
mode; set measuring rate somewhat higher than optimum measuring rate
5.3.5

Light Source

The Light Source parameter determines the brightness of the internal light source.
The brightness of the 4 segments of the illumination LEDs can be set individually. In
order to achieve balanced illumination for optimum measurement results, it is recom-
mended to use automatic brightness adjustment.
Maximum luminance
Minimum luminance
Manual configuration
Configura-
Automatic adjustment
tion of the
LED seg-
ments
LED off / passive operation
Intensity Quadrant: Cold White
Intensity Quadrant: Green
Intensity Quadrant: Warm white Value
Intensity Quadrant: Violet
i
A new white balance on the system is required after every change of the LED
brightness settings. In the case of larger brightness changes, an additional running-
in time of 20 to 40 minutes is recommended.
The manual configuration is required to adapt the intensity of the light source to the tar-
get. For example, coated glass or paper reacts to a high violet content in the light.
5.3.6

Corrections, Referencing

Dark correction
White balance
Light reference
Performing dark correction
The controller needs a warming-up time of appr.. 40 minutes for this referencing.
i
No external light must reach the sensor during dark correction.
Cover the sensor with a piece of dark paper and press the Dark reference but-
ton on the controller or click the Dark correction button in the web page. Menu
Preferences > Corrections, Referencing.
The illumination LEDs are automatically switched off for the duration of the correction
process. During the dark correction, the button lockout in the controller is activated and
released again afterwards.
Factory setting: maximum brightness in all four
segments
Minimal brightness in all segments
Possible control of the individual segments.
The reaction of the light source is visible im-
mediately.
Enables a one-tine brightness adjustment of
the illumination LED which determines an
optimum spectrum for the selected, manual
measuring rate. In doing so, optimum bright-
ness settings for the respective color chan-
nels are determined automatically for the light
source. The automatic adjustment of the light
source guarantees a balanced illumination
spectrum for optimum measurement results.
The light source is switched off. Controller
operates in the mode of selflluminous objects
light sources).
Value 50 ... 1023
Value 50 ... 1023
50 ... 1023
Value 50 ... 1023
The dark correction eliminates the influence of
the dark signal of the array in the controller.
A white balance references the system to a
white standard.
A light reference refers the system to the
brightness of a comparison light source. The
light reference function is only possible as light
source with LED off/passive mode.
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