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Moisture In Oil Sensor

Moisture In Oil Sensor
Moisture In Oil Sensor
Product Code : EE36
Product Description

Installation Ship Engine

  • Distribution in India via Jupiter Electronics in co-operation with Altop Industries
  • Full local experience and support
  • Special discount package for 2009

Industrial Transmitter For Moisture Content In Oil

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 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 or 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 waster 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.

Features

  • Measurement of aw and T at pressure up to 10bar (145psi)  Yes
  • Calculation of water content in ppm for mineral transformer oil  Yes
  • Two free scaleable and configurable analogue outputs  Yes
  • Probe cable length up to 10m (32.8ft)  Yes
  • Easy on site adjustment and calibration of aw and T outputs  Yes
  • LED indication for operation and sensing probe status  Yes
  • User configuration of the instrument with PC via RS232 interface  Yes
  • Configuration software  Yes
  • Display of aw, T and water content with MIN/MAX function optional Yes
  • Two free configurable relays outputs Optional
  • Replaceable sensing probe optional Optional
  • Connector for power supply and outputs Optional

Technical Data

Measuring values

Water values

Water activity sensor 1): HC 1000-400

Measuring range1): 0 1aw

Accuracy incl. hysteresis and nonlinearity in air

Special calibration against certified standards: +-0.01aw (0.09aw) +-0.02 aw (0.9 1aw)

Standard calibration: +-0.02 aw (0. 0.09aw) +-0.03aw (0.9 1aw)

Temperature dependence of electronics: typ +-0.0001 [1/C] (typ. +-5.6 * 10-5 [1/F]

Temperature dependence of sending probe: typ +-(0.0002 + 0.0002 x aw) T (C) T = T- 20C

Response time with stainless steel filter at 20C / t90: typ 10 min in still oil

Temperature

Temperature sensor element: Pt 1000 (tolerance class A, DIN EN 60751)

Working range sensing probe: -40 .180C (-40. 356F)


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