The most frequent errors in selecting a monitor for contamination include selecting the wrong technology to detect the type of fluid, and sizing the monitor wrongly in terms of pressure and flow rate and not recognizing particle count reporting standard (ISO 4406 as compared to. NAS 1638 vs. SAE AS4059) and ignoring the location of the installation and access to the sample point and underestimating the monitor's sensitivities range compared to targets cleanliness codes. All of these mistakes lead to incorrect readings or false alarms, missed incidents of contamination, or premature failure of the component—all of which can undermine the entire strategy of predictive maintenance the monitor was designed to aid in.
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