Techkon Spectro Jet Manual page 14

Scan measurements
Page 14 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
• Place SpectroJet on the color bar with
the measurement aperture just ahead of the
first section, you want to measure. Press the
green measurement button. After an acoustic
signal an the illumination of the whole LED
row, start to scan the color bar at constant
speed. After the first measurement run you
have completed the densitometric measure-
ment an you will hear, that the polarization
filter is switched off for the colorimetric
measurement.
• Now move the device in a constant speed
back to the point where you started the
measurement.
If densitometric measurements without
polarization filter are carried out, only one
measurement run is necessary (which is the
standard practice in the USA).
The faster you move the measurement
device along the color bar, the more of the
green LEDs will light up in the LED row.
When the orange LED flashes up, the limit
range of the speed is reached.
If the speed was too high and SpectroJet was
not able to read all measurement patches,
the red LED at the end of the row lights up
together with three acoustic signals and the
software displays that the measurement pro-
cedure has been aborted. In that case repeat
the measurement at lower speed.
If the measurement was carried out success-
fully a short double signal can be heard and
the measurement data are captured by the
software.
Make sure that the measurement head is
aligned exactly with the color bar.