Is it possible to check on the status of hydraulic fluids in an active system?

Исследователь смотрит на пробирку с жидкостью
Online monitors are designed to perform in-house measurements of particulate levels and water concentration and some monitors have the capability to interface with fluid-purification devices for automated operation. When preset threshold concentration limits for particulates and/or water are detected, the contaminated fluid is automatically directed into the purifier without the need for operator intervention.