An obvious consideration is whether the accuracy of measurements with the ProFoss are comparable to existing bench top analyzers used in the laboratory.
A user study based on ProFoss for flour milling indicates very similar performance for both solutions.
But even though the performances of the two solutions are very similar, the frequency of measurement with the ProFoss system allows trends and irregularities to be spotted more quickly.
The ProFoss can also help to spot smaller variations in the process, as shown in the trend chart. This is because using a bench top instrument to check a process is subject to the risk of operator error. Mistakes can lead to a wrong measurement result and if this is used for process adjustment,
This can continue until the next sample is analyzed perhaps one or two hours later. So, although the performance of NIR laboratory instruments is traditionally determined by the standard error of prediction (SEP), in real life, the performance is limited by a combination of sampling errors, sample preparation
errors and analytical errors.
In contrast, ProFoss takes direct measurements inside the process. Sampling errors and sample preparation errors can therefore be minimized to almost zero. Monitoring process variations using a trend chart and a moving average function enables the detection of process variations of a laboratory analyzer. Even if one result is wrong for some reason, this has no new result will be generated few seconds later.
