Buchi NIRMaster Essential, Руководство по эксплуатации

Страница: 26 / 46

6 | Operation
Büchi Labortechnik AG
26/46 Operation Manual NIRMaster™
The internal referencing is used to minimize the need for external referencing and
user interaction. The interval between two tests can be set via the NIRWare
Application Designer.
6.3.3 Performing a reference measurement
NOTE
For proper device calibration, the external reference or the transflectance adapter
must be placed plane on top of the sample window.
Could otherwise lead to incorrect calibration.
u
Do not tilt the external reference / transflectance adapter.
u
The external reference must be aligned to match the cut-out of the centering
plate on top of the instrument.
u
When working with the transflectance adapter, the spinner device is a
recommended accessory.
u
All items / surfaces must be absolutely clean.
u
The external reference and the transflectance adapter must be damage and
scratch free.
After the expiration of a predefined time interval (60 min. by default), a dialog (1)
will remind the operator to perform an external reference measurement. The
interval can be set in the Application Designer.
The software guides the user through the process:
1
When the external reference (2) has been positioned properly, press the
‘Checkmark’ button. The instrument will automatically measure the reference
spectrum.
2