Metrohm NIRS XDS SmartProbe Analyzer User Manual

Page 66

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Vision requests a “Standard File”. For
Photometric Test, use the RSSVxxxx.da file
stored in the Vision directory. This file was
created during IPV Setup. Current
photometric readings will be compared to
that initial file.

Click on the RSSVxxxx.da file as shown. (The
serial number will be different, of course.)
Click “Open”.

Do not use the file on the standards mini-CD
for Photometric Test, as it will cause Vision to
return an error message.

Vision requests a tolerance file. The tolerance
file was loaded in the C:\Vision directory, and
is an “XDA” formatted file.

Select this file and click “Open”.

Note that tolerance files for Photometric Test
are numbered. The digits “04” refer to the
fourth version of this tolerance file. When
new XDS instruments are added, the
tolerance file number is incremented.
Tolerances for a given instrument do not
change within the file, however. (The file
IPVXDS01.xda will provide the same test
tolerances as IPVXDS04.xda.)

Vision displays the wavelength regions for
test.

For reflectance instruments, these regions
give a good overall picture of instrument
performance and repeatability. The
wavelength areas are chosen in flat parts of
the standards spectra for stability.

For Number of Replicates, Enter “4” as in IPV
Setup.

Click on “OK”.

Vision will begin to take an instrument
reference scan, if the instrument is operating
in Reference Standardized mode. The red
progress bar at the bottom of the screen
indicates status.

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