Techkon Spectro Jet, Руководство пользователя

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Page 16 Manual TECHKON SpectroJet Chapter 3 – How to use SpectroJet
Paper white calibration
A paper white calibration can be carried out by keeping the green button pressed for
a few seconds. The measurement aperture has to be positioned on a non-printed area
of the sheet.
Absolute white calibration
The absolute white calibration is carried out on the absolute white standard which is
included. SpectroJet must be placed on the standard, with the measurement aperture
on the ceramic tile. Make sure that the ceramic white standard is clean and not de-
fective.
Absolute white standard of SpectroJet
• Choose in the ExPresso Software under
“Settings
 Measuring conditions  Mea -
surement devices” the button “Settings” and
press then in the “Measurement settings”
window the button “Absolute White Calibra-
tion”. SpectroJet will confirm the calibration
with an acoustic signal and the ExPresso soft-
ware displays that the calibration was carried
out successfully.