Buchi NIRFlex N-500 User Manual download pdf (Page 34)

4 Description of function

34 NIRFlex N-500 Operation Manual, Version F

4.6.10 Spinner add-on

NIRFlex Solids in combination with the Spinner add-on is the ideal conﬁguration to measure smaller

solid samples whereas the volume of a petri dish is too big. This add-on can also be used with a

transﬂectance cover to analyze liquids (e.g. solvents or milk). The transﬂectance technique is suitable

for customers, who analyze liquids occasionally.

Spinner add-on

Cuvettes (i.e. Hellma cuvette) or glass vials with a diameter of 34 mm can be used as sample vessel in

the motor-driven Spinner. For reference measurement the Spinner can hold the External Reference.

4.6.11 Flow-cell adapter add-on

The NIRFlex Solids with ﬂow-cell adapter add-on is the ideal conﬁguration to measure liquids (e.g.

solvents and milk.) in a quartz ﬂow-through cuvette with 1 mm pathlength.

Flow-cell adapter add-on

To connect the ﬂow-cell, silicone tubes with 4 mm inner and up to 7 mm outer diameter can be used.

External referencing requires a clean and dry ﬂow-cell. In some applications, referencing can also be

done with measurement solvent in the ﬂow-cell.

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Buchi NIRFlex N-500 User Manual Page 34