Transmitters for
Moisture Content in Oil
EE36 Series
E+E Transmitter Series EE36 are specially designed
for the measurement of water content in oil. EE36 is
ideal for online monitoring of moisture in
lubrication or insulation oil, which is
very important for the long-term performance and
adaptive maintenance of plant
and machinery.
For instance, moisture affects dramatically the
insulation characteristics of electrical transformer
oil and therefore continuous monitoring is extremely
important.
Humidity measurement in oil
Similar to the humidity in the air, the water
content in an oil can be described
by the absolute value in ppm or by the relative
value aw:
- ppm (mass of water / mass of oil)
- aw (actual water content as fraction of the water
content in the saturated oil)
aw = 0 corresponds to water-free oil, while aw = 1
describes fully saturated oil.
aw measurement with EE36 transmitter series is based
on the outstanding long term stability and
resistance to pollution of the E+E capacitive sensor
elements series HC.
Product Versions
The physical quantities measured are water activity
aw and temperature T. With these quantities EE36
calculates the water content (ppm) in mineral
transformer oils. Calculation of water content in
non-mineral transformer oils and lubrication oils
can be accomplished by downloading specific
parameters of the oil. The measured and the
calculated values are available on two free
scaleable and configurable analogue
outputs. In addition, an optional relay output can
be used for alarms and process control.
Installation
The sensing probe is designed for inline monitoring
and can be placed directly in the oil, at pressures
up to 10bar (145psi). In addition to direct mounting
of the sensing probe, a ball valve installation
provides mounting and removal of the probe without
interrupting the process.
Easy Calibration and Adjustment of EE36
The user can easily readjust or calibrate the
transmitter by using either a simple procedure with
two push buttons on the printed circuit board or the
configuration software.
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Integrated power
supply |
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NEW
A power supply, integrated in the
back module of the housing, can be
ordered optionally (100...240V AC,
50/60Hz; ordering code V01). The
power supply V01 is
available for both polycarbonate and
metal housing and comes standard
with two plugs for supply and
outputs to allow an easy connection.
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FOR DETAILS DOWNLOAD CATALOGUE |
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