Water in oil can cause quick and costly breakdowns. This type of fluid contamination can also result in problems such as additive depletion, oil oxidation, corrosion and accelerated component wear rates. Because water contamination can occur at any time, it is possible for bearings and other lubricated components to be seriously damaged without giving any obvious warning signs.
Online monitoring is a proven successful method for the prevention of water contamination in fluids. EESIFLO® has developed the EASZ-1 online moisture sensor, a water in oil analyzer that provides early warning signals when a problem is detected, therefore prompting corrective action to be taken immediately.
The unit can be used in online moisture monitoring and as a control instrument allowing separators and oil purifiers to be operated only when needed. One major benefit is the response time. In seconds, the unit will respond to a change in the capacitance of the oil monitored and is not affected or knocked out of service by saturation. It will continue to work in both high and low measurement ranges.Principle of Operation
The moisture sensor takes advantage of this fact by employing high-speed analog-sensing electronics to accurately measure the K of any fluid passing through its dual cylinder cell. Knowing the K of the original fluid (oil or fuel), and the K of the second fluid (water), it is a simple matter to determine the oil/water ratio to accurate values.
A single-button calibration feature allows the user to calibrate the oil sensor for use on any fluid regardless of its age or current moisture content. This feature permits oil changes without extensive recalibration of the entire system.
One of the advantages of this moisture-sensing technology is its ability to measure total water in all three phases (dissolved, emulsified and free) in real-time, from 35 ppm to 65 percent.Water Measurement
The moisture sensor measures water contamination in a dissolved, emulsion or free water state. It can detect below 100 ppm with a resolution of +/- 35 ppm. The instrument is able to measure below and above saturation levels with a response time of only one second. This is advantageous to users who need to correlate actual moisture readings with laboratory results. In this sense, the sensor is more reliable than spot sampling or laboratory results simply because it is monitoring the total volume of oil 24 hours a day.Applications
Paper mill lubricating systems
Circulating gear oils
These are just a few examples of the applications that may utilize the online moisture sensor. Because it can calibrated to any type of oil, the electronics do not drift and the sensing elements are not destroyed by water.