Metrohm NIRS XDS MasterLab Analyzer - Manual (Page 29)

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Large Sample Cell, Reflectance
• Detector Selection: Reflectance
• Wavelength Range: 400-2500 nm
• Preferred Spot Size: 17.25 mm
• Aperture: Removed
• Iris Adapter: Removed
This cell is optional, for large samples.
Vial Sampling in Iris Adapter, Reflectance
• Detector Selection: Reflectance
• Wavelength Range: 400-2500 nm
• Preferred Spot Size: 9.5 – 17.25 mm
• Aperture: Removed
• Iris Adapter: Installed
A centering iris is used to position the vial or
sample cell on the sample window.
A precise, repeatable X-Y mechanism is used to move the sample trays into position for analysis. An
overview of sampling methods is provided, for users who are familiar with Metrohm NIRSystems XDS
instruments. This chart describes the sampling modes, and key selections for each:
Connect to Instrument
Full connection instructions
are provided in section 6.1.
Create DCM
See section 7.1 for
Tablet Transmission.
See section 8.1 for
Reflectance.
Choose the detector
type first. This will set
wavelength range and spot
size to default values.
This DCM shows
“Transmission.”
The default spot size is
9.5mm. This provides
maximum illumination
energy to the tablet.