TANDELTA OQSExISG2, Руководство пользователя

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Figure 77 - Water Ingress
It’s often difficult to identify water in oil using lab analysis, because as the data above shows,
it is only present in the oil at low temperatures. Often sampling will occur after equipment has
been running and so water will have been evaporated. If your sensor shows data similar to this,
we recommend waiting until the equipment has been shut down and cooled to ambient, and
then running it for several minutes before taking a sample for analysis. Coolant will often leave
chemicals in the oil, which can be detected using lab analysis, we recommend conducting lab
analysis on the coolant itself, so you know exactly what chemicals it contains, and makes it
easier to detect in the oil.
12.3.3 Wear Metal Contamination
Wear metal contamination can be indicated by fluctuations in the oil condition values
happening over a shorter period of time (peaks are progressively closer together than they
have been previously) as shown in the below example graph (1).
Figure 78 - Wear Metal Contamination
(1)
(2)
(3)
(1)