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Measuring self-illuminating objects
Self-illuminating objects are illuminated by a separate, „cold“ light source. These objects are e.g. CRT tubes,
LCD/TFT monitors, LED illumination, etc. Hot light sources like common light bulbs and halogen spotlights
may not be measured.
The measuring device is mainly intended for non-self illuminating objects. Due to the
different light sources, the measuring values are not specified in this mode. With self-
illuminating objects, the measuring device can only be applied for comparative measu-
rement.
Proceed as follows for the measurement:
• • Connect the sensor to the measuring device and turn the device on via the „POWER“ button.
•
The measuring device signals this with a beep. Wait until the „Mesu“ icon goes off on the display. After
activation, the measuring device is always in RGB mode with activated sensor illumination.
• Switch the illumination function off by pressing the button „LIGHT ON/OFF“ once. A beep confirms your
selection.
• Press the measuring button (4 or 16) and check the inactivated sensor illumination. If this is lit, turn the illu-
mination in the sensor head off via the button „LIGHT ON/OFF“ (9).
• Place the sensor head (15) flat onto the object to be measured. The sensor may not be moved or lifted dur-
ing measuring.
• Briefly press the measuring button (4 or 16) once. Measuring takes place automatically, which is signalled
with a beep. The display indicates „Mesu“.
• To switch to HSL mode, press the button „RGB/HSL“. The display switches to this mode. Another press
returns the device to RGB mode.
• After measuring, turn the device off via the „POWER“ button.
REL comparative measurement
Via the REL function, you can perform a simple comparative measuring operation from a reference surface to
a sample surface. Deviating values can be easily detected as „+/0/-“ value.
Please proceed as follows to activate this function:
• Perform normal colour measurement on the reference object as described for RGB or HSL measuring.
• Once the measuring value is displayed, press the button „REL“ (8). The displayed values are saved as refer-
ence. The display blinks and shows „0 0 0“.
• Place the sensor head on the sample surface and press the measuring button once. The comparison mea-
surement is in progress and shows the difference value after a brief measuring period.
• Deactivate the REL function by once again pressing the „REL“ button (8).
