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EE364 is a compact and rugged moisture in oil transmitter for inline oil monitoring. It is optimised for high accuracy and excellent long term stability in lubrication, hydraulic and insulation oils, as well as diesel fuel.

Water activity (aw) and temperature (t) are accurately measured and the water content (x) in ppm precisely calculated. EE364 features two 4-20 mA outputs and one Modbus RTU interface.

With an optional confugration cable it is possible to perform an adjustment, set the MODBUS interface parameters and configure the analogue outputs.

Key features

  • Measurands: water activity (aw), temperature and water content (x) in ppm
  • Oil temperature up to 100 °C (212 °F)
  • Two 4...20 mA outputs
  • Modbus RTU interface
  • Pressure rating 20 bar
  • G ½" ISO or ½" NPT process connection
  • Outputs freely configurable by the user

Typical applications

  • Monitoring of

    • Transformer oil
    • Lubrication oil
    • Hydraulic oil
    • Diesel fuel

Technical data

  • 0...1 aw
    -40...80 °C (-40...176 °F) or
    -40...100 °C (-40...212 °F)

    Measuring range
  • ±0.02 aw
    ±0.2 °C (0.36 °F)

  • 2 x 4-20 mA / MODBUS RTU

  • 10-28 V DC


Product inquiry

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  • HA010110

    Stainless steel filter


    Material: stainless steel
    Openings: ?3mm
    Length: 32mm (1.26")


    For moisture in oil transmitters and hand-helds

    Typical applications

    Hydraulic, lubrication and
    isolation oil monitoring

    Suitable for Products: