 |
The
Measuring System
The AS2000 series AquaSensors are stationary, microprocessor
based measurement units for the continuous monitoring
of the water saturation level and temperature in hydraulic
and lubrication systems. The saturation level indicates
the percentage of maximum possible water is dissolved
in the oil. A reading of 0% would indicate an oil free
of water, while a reading of 100% would indicate oil that
is saturated with water. The saturation level and temperature
are reported continuously to the integrated display and
alarm relays and can be captured via PLC, PC, etc. |
|
Water In Oil
It
is almost certain that there is water present in hydraulic
and lubrication systems. Hydraulic and lubrication systems
should be operated without the presence of free or emulsified
water. The most common sources of water entering a system
are ambient humidity, ³splash² from process water and
new oil. Water contamination will accelerate the aging
process of the oil resulting in oil oxidization, additive
depletion, reduced lubrication, corrosion and damaged
components. Most of these costly problems can be avoided
by monitoring the water content of the operating fluids.
Sometimes the water content is difficult to determine,
but with the new AquaSensor, determining the amount of
water is easy! The most practical method for monitoring
water content in oil is as a percent of the saturation
level. Different oils are capable of dissolving varying
amounts of water, therefore they have varying water saturation
curves. The curve to the right is an example of the typical
relationship of water saturation level versus fluid temperature
in hydraulic and lubrication oils. By looking at the example
graph it can be seen that this fluid is capable of holding
more water, or has a higher saturation level, as the temperature
increases.
|
