Moisture content in oil

EE36 Series

E+E Transmitter Series EE36are specially designed for the measurement of water content in oil. EE36is 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 importa nt.

Humiditymeasurement 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 relativevalueaw: - ppm (massof water/ massof oil) - a, (actual water content as fraction of the water content in the saturated oil) a, = 0 corresponds to water-free oil, while a, = 1 describes fully saturated oil. a, measurement with EE36transmitter series is based on the outstanding long term stability and resistanceto pollution ofthe E+E capacitive sensorelements seriesHC

Technical Data: Measuring Values
Water Activity
Water activity sensor') HC1000-400
Measuring ranqe" 0...l aw)
Accuracy incl. hysteresisand non linearity in air - Special calibration against certified standards - Standard calibration ± 0.01 aw(0 ...0.9awJ± 0.02aw)(0.9...1aw) ± 0.02aw(0...0.9awJ± 0.03aw)(0.9...1aw)
Temperature dependence of electronics typ. ± 0.0001 [1tC] (typ. ± 5.6 * 10-5[1tF])
Temperature dependence of sensing probe typ. ± (0.00002 + 0.0002 x aw) × ΔT[°C]ΔT - 20°C
Response time with stainless steel filter at 20°C / t.o typ. 1Omin in still oil

Temperature sensor element Pt1000 (tolerance class A, DIN EN 60751)
Working range sensing probe -40 ...180°C (-40 ...356°F)

Two freely selectable and scaleable analougue outputs 0- 5V -1mA < IL < 1mA
0- 10V -1mA < IL< 1mA
4 - 20mA RL < 500 Ohm
0- 20mA RL < 500 Ohm

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Every instruments we manufacture is calibrated against highly accurate instruments and undergoes series of test such as Leak Test, Over Load Test and Accuracy Test.All our products are check on the Quality, Reliability And Durability.

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A-33, Meldi Estate, Nr. Railway Crossing, Gota, Ahmedabad-382 481, Gujarat, India.
Telefax: +91 2717 242330
Cell: +91 98790 07526