BUCHI NIRWare - Manual (Page 188)

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NIRWare Suite NIRWare 1.5 Software Manual
After the first measurement is done, the number next to the stopwatch-symbol counts down the remaining
time before the second measurement is started- and so on.
The measurement cycle is running infinitely until it is manually stopped (via the usual red stop button).
Tips and Tricks
Application name indicating cycle mode
Using a reference to cyclic measurement in the name of the application can be very helpful to differentiate
cyclic- from single measurement-
applications (e.g. Application ‘Water content monitoring – 1min
CYCLE’.)
Same Application for single- and cyclic measurement
You can configure an application EITHER for regular (= single measurements) use, OR for cyclic
measurements. If you need to use both alternatively, create a copy of one application and just change the
setting for ‘Cyclic measurement enabled’ –plus changing the name so that you know which is which
(see above).
Autoname
Using the Autoname function for giving sample names is a must for cyclic measurements (Management
Console- Application Designer - <YourApplication> - Operator Configuration: Autoname Part 1 /
…2 / …3.) Especially ‘Date’ for ‘Autoname Part 3’ is a highly recommendable setting.
Trade Spectral Noise for Speed
Fast chemical processes require short enough measurement times. Speeding up a single measurement
can be achieved by lowering the ‘Number of Scans’ in the applications’ instrument configuration.
But be aware that spectral noise will increase when doing so (‘Square root of n-law’, meaning that the
signal-to-noise ratio is proportional to the square root of the number of scans)! Whether a decrease in
spectra quality is tolerable or not is thus strictly dependent on the actual application and needs to be
carefully validated!
Countdown time seems to change randomly
The runtime of a measurement includes calculation and storage procedures which are influenced by the
current performance of the PC. This can result in small fluctuations in the duration of a measurement.
Therefore, a measurement might take a few seconds longer than the previous, so that the remaining
countdown time is getting shorter, since the time from one measurement to the next must remain
constant.
Configuring the PropertyID for Expected Substance recognition
So far, the “Expected Substance” is entered as a number - but how can we make the system recognize
the corresponding property?
Let’s assume that “11111” is the material code for “Sucrose”, then we simply go to the Sample Manager
and tell this fact to NIRWare: