Oil humidity and temperature probe MOP301
water-in-oilabsoluteinsertion

Oil humidity and temperature probe - MOP301 - E+E ELEKTRONIK - water-in-oil / absolute / insertion
Oil humidity and temperature probe - MOP301 - E+E ELEKTRONIK - water-in-oil / absolute / insertion
Oil humidity and temperature probe - MOP301 - E+E ELEKTRONIK - water-in-oil / absolute / insertion - image - 2
Oil humidity and temperature probe - MOP301 - E+E ELEKTRONIK - water-in-oil / absolute / insertion - image - 3
Oil humidity and temperature probe - MOP301 - E+E ELEKTRONIK - water-in-oil / absolute / insertion - image - 4
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Characteristics

Type
absolute, oil, water-in-oil
Mounting
insertion
Output
RS-485, Modbus RTU
Supply voltage
DC
Electrical connection
M12 connector
Protection level
IP66, NEMA 4X
Other characteristics
stainless steel
Measuring range (temperature)

Max.: 120 °C
(248 °F)

Min.: -40 °C
(-40 °F)

Accuracy (temperature)

0.15 °C
(32.27 °F)

Working temperature

Max.: 125 °C
(257 °F)

Min.: -40 °C
(-40 °F)

Description

Digital Moisture in Oil Immersion Probe up to 120 °C (248 °F) The MOP301 reliably measures the moisture in transformer, lubrication or hydraulic oil as well as in diesel fuel. It is ideal for the preventive maintenance of equipment and machinery. Besides the accurate measurement of water activity (aw) and temperature (T), the MOP301 calculates the absolute water content of the oil (x) in ppm. The dynamic calculation is based on oil-specific solubility parameters. Measurement Performance The probe employs high end E+E humidity sensing elements with outstanding long term stability and high resistance to pollution. Versatility Various cable and probe lengths, together with the sliding fitting facilitate the MOP301 installation. Using the optional ball valve, the probe can be mounted or removed without process interruption. RS485 Interface The measured data is available on the RS485 interface with Modbus RTU protocol. The oil resistant cable with moulded M12 connector assures reliable data transmission even in harsh and aggressive environment. Configurable and Adjustable The free PCS10 Product Configuration Software and the optional adapter facilitate the setup and adjustment of the MOP301.

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Exhibitions

Meet this supplier at the following exhibition(s):

CSEAC
CSEAC

10-12 Jun 2026 Shanghai (China)

  • More information
    Reliable Plant Conference & Exhibition
    Reliable Plant Conference & Exhibition

    15-18 Jun 2026 Tahoe, NV (Afghanistan)

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.