BUCHI NIRFlex N-500 - Manual (Page 51)

5 Putting into operation
51 NIRFlex N-500 Operation Manual, Version F
Additional handling instructions
Install the measuring cell with the top cover •
closed to avoid mechanical stress at the
hinges!
Keep the top cover closed during a measure-
•
ment to keep out scattered ambient light.
Open and close the top cover carefully.
•
At closing:
A small bumper avoids hard impact to the cover.
At opening:
Do not release the top cover until it is in fully open
position! The hinges might break-away.
Additional handling instructions
5 .7 Preparing the transflectance adapter
5 .7 .1 Adjusting the pathlength of the transflectance adapter to the probe head
When you receive the transflectance adapter with a new instrument:
When you receive your transflectance adpater together with a new NIRFlex N-500 instrument, the
pathlength has already been adjusted to the probe head by the manufacturer.
When you receive the transflectance adapter as additional accessory for an instrument already
installed:
As the probe head dimensions may vary slightly you need to adjust the transflectance adapter to the
probe head when you receive it as additional accessory for an instrument already installed.
A correct adjustment is necessary for the portability of spectra.
To adjust the pathlength of the transflectance adapter to the probe head, the spacer ring 1 mm is
used. The other spacer rings have been manufactured to fit accordingly.
Normally, the transflectance adapter is delivered with the adjustment ring and the spacer ring 1 mm
mounted. If this is the case, proceed with section 5.7.2.