BUCHI NIRMaste Pro IP65 - Manual (Page 25)

6 Operation
25 NIRMaster Operation Manual, Version B
Preconfigured Windows login accounts
User name Minimum skill level Intended use of this account
Administrator IT specialist or advanced PC administrative user Administration of network and PC settings
niradmin Trained Buchi service specialists Administration / repair / advanced system
configuration etc.
User Standard operator Standard operations and measurements
6 .1 .1 System warm-up
When cooled down below working temperature, the spectrometer needs a warm-up time of approx.
15 min. The warm-up time starts as soon as the instrument is switched on.
NOTE
Insufficient warm-up time can influence the quality of measurement. A longer warm-up time might be
required at low environmental temperature!
6 .2 System Suitability Test
The S ystem S uitability T est (SST) serves as an internal functionality and performance test of the spec-
trometer. It is recommended to run an SST after each restart of the NIRMaster to monitor and verify
the system performance.
The following SST values are tested:
• Internal system temperatures (e.g. Laser, interferometer, detectors)
• Linearity
• Signal-to-noise ratio
• Wavenumber stability
At the end of each SST a report protocol will be generated. The test results are compared to values ex
factory and inform the user about the system condition.
➥ The report data are stored in the internal database for service and quality control.
NOTE
The time between two SST requests can be set with the NIRWare Application Designer. The recom-
mended standard value between two tests is 24 hours, a test-run takes approximately 5 min. Test
results can be exported and stored in XML-format, e.g. for service purpose.
If the instrument is used in continuous operation (e.g. several days of ON-time), a longer checking
interval might be suitable. However, frequent tests should be performed to minimize the risk of erro-
neous measurement.