CMP Features
CMP1000
en(us)
Page 18 / 44
MoWa CMP 3528418d en-us 2015-01-06.doc
2015-01-06
CMP Features
The gear pump sucks the oil to be analyzed and conveys it to the
Contamination Sensor, in which the particulate contamination is captured by
an optical sensor and analyzed according to particle size classifications and
counted.
Any air bubbles contained in the oil may skew the measurement results as
they, like particulate contamination, cause the measurement cell to generate
signals.
The purpose of the CSM is to suppress air bubbles so that the measurement
results are not skewed or only minimally impacted.
Because oil absorbs an increasing quantity of air as the pressure increases
(rule of thumb: ~ 8% air per bar), the ContaminationSensor aims to achieve
the greatest possible pressure. This is done using a downstream pressure
relief valve.
However, pressurized air cannot be immediately dissolved in oil,
consequently a path is provided for between the pump and the sensor.
