Versatile oil moisture sensor from E+E Elektronik

February 10, 2023
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E+E Elektronik humidity sensors are characterized by high quality, long-term stability and mechanical strength. Sensors of this class are chosen by professionals who value sensor reliability, measurement accuracy and longevity, even in the most difficult working conditions.

Oil moisture sensor MOP301 - versatile in use

The MOP301 oil moisture sensor impresses with its robust stainless steel housing and protection class IP66, oil-resistant cable and M12x1 connector. The sensor can be used in the temperature range from -40 to 120 °C and pressure up to 20 bar.

A variety of probe and cable lengths, as well as a slim design, allow for extremely flexible installation of the MOP301. Thanks to the practical process connection with ISO or NPT thread, the immersion depth can be precisely set. With the help of an additional ball valve, the sensor can be installed and removed without interrupting the process.

Sensor MOP301 measurement values and communication options

E+E Elektronik MOP301 sensor provides oil moisture content as an absolute or relative value. Water activity (aw) provides information on how close the oil is to its saturation point at a given temperature.

Water content (x) in absolute numbers indicates that the moisture level is expressed as water content (x) ppm, which is mg water/kg oil. Based on the measured water activity (aw) and temperature, the MOP301 calculates the absolute water content (x) in ppm. The oil-specific parameters required for the calculations can be pre-configured at the time of order or can be stored with the help of the PCS10 product configuration software.

The most typical application in different types of oils:

  • transformer oil
  • lubricating oil
  • hydraulic oil
  • diesel fuel
  • etc.

Key benefits of sensor E+E Elektronik MOP301:

  • High measurement accuracy and wide temperature range
  • Suitable for transformer, lubrication and hydraulic oil
  • Process connection with ISO or NPT fitting
  • Calculation of water content x [ppm]
  • Pressure up to 20 bar with an additional ball valve
  • Stainless steel body and filter cap with IP66 rating
  • RS485 with Modbus RTU communication protocol
  • Modbus map area to be edited
  • M12x1 connector
  • Oil resistant cable

Technical data of E+E Elektronik MOP301:

  • Measuring range: 0...1 aw -40...120 °C (-40...248 °F)
  • Accuracy: ±0.02 aw ±0.15 °C
  • Communication: RS485 with Modbus RTU
  • Power supply: 8-35 V DC

Sigma 05 - Modular Sensor Platform

The MOP301 humidity sensor is compatible with the Sigma 05 device of the E+E Elektronik modular sensor platform. Together they become a versatile, easy-to-use oil moisture and temperature sensor with the replaceable probe, analog outputs and indication display. In addition to MOP301, Sigma 05 can also connect other E+E Elektronik smart sensors. For more information, visit Sigma 05 or contact the ZTF Lāsma team!

Code: HA010406
In stock: 0 (on request)
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Lauris Bērziņš
Lauris Bērziņš
Business manager
+371 2617 7129

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