BUCHI NIRFlex N-500 - Manual (Page 63)

6 Operation
63 NIRFlex N-500 Operation Manual, Version F
! WARNING
Risk of fire by highly flammable materials
Do not insert highly flammable materials or samples into the measurment cell •
6 .7 NIRFlex Fiber Optics
All fiber optics must be treated with special care to avoid breaks and other damages of the glass fibers
and optical surfaces! Cleaning should always be done manually with a soft, lint free damp cloth with
mild soapy water. Optical surfaces can be cleaned with Kimwipes.
NOTICE
Risk of damage at the fiber optics
Do not bend the fiber optics to a radius smaller than 15 cm •
Do not overstrech or twist the fiber optics •
Do not expose the fiber optics to heavy impacts or punctual pressure •
Do not bring the fiber optics into contact with organic solvents, acids or alkaline solutions •
Do not bring the white standard into contact with furanes, acids and other oxidizing agents •
6 .7 .1 NIRFlex Fiber Optic Solids
The handle is equipped with a remote control for initiating the measurements remotely and displaying
the results using LEDs on the handle.
Because the fiber optic probe is used at a certain distance from the spectrometer, the length of the
fiber optic cables between the measuring cell (spectrometer) and the probe tip is about 2 m (special
versions with longer fiber optic cables are available on request).
NOTICE
Risk of damage at the white standard
Do not bring the white standard into contact with furanes, acids and other oxidizing agents •
NOTE
The software automatically detects the presence of a transflectance adapter but not the path- •
length in use, so make sure to use the appropriate pathlength.
It is not possible to start a reference measurement if the reference cap has not been detected by
•
the system.
Reference measurement
For correct measurements and correct results, it is necessary to record a reference spectrum regularly.
For this purpose, use the reference cap. In order to avoid false results, the reference cap is detected
automatically if installed.