Moisture Content Sensor

Moisture Content Sensor

The moisture content sensor (MCS) is suitable for most hydraulic and lubricating fluids. The high accuracy of the measurement and excellent long-term stability make the MCS ideal for online monitoring of moisture in transformer, lubricating and hydraulic fluid, as well as diesel fuel. The MCS is perfectly suitable for long term usage in moisture levels, higher than 90% RH. Making it the perfect solution for gearboxes, thrusters and
other applications where free water is a threat. By combining the MCS with other RMF products like a Condition Monitoring Center and vacuum dehydration unit, we offer you the optimal solution for your water contamination problems.

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Specifications

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GENERAL
Supply voltage	24 VDC
Power consumption at 24V DC	<40mA
Pressure rating	0…20 bar (0…290 psi)
Measurement range	0 -100% RH
Housing / protection rating	Stainless steel 1.4404 / IP65
Connection	G1/2’’ BSP
Electrical connection¹	M12 8-pin plug
Sensor protection	Stainless steel filter
Oil temperature	-40…100 °C (-40…212 °F)
Ambient temperature	-40…80 °C (-40…176 °F)
Storage temperature	-40…60 °C (-40…140 °F)
Electromagnetic compatibility	EN61326-1 EN61326-2-3
Fluid compatibility²	Petroleum based and synthetic fluids
OUTPUT
2 x analogue output	4 – 20 mA (3-wire technology) <500 Ohm
Digital output	MODBUS RTU
ACCURACY AT 20°C³
Humidity Sensor	± 2% 0 to 90% & ±3% 90 to 100%
Temperature in oil	±0.2 °C (0.36 °F)
Response time	< 10 min. in still oil

¹M12 8-pins connector is included. Contact RMF Systems for connection diagram
²The MCS is not suitable for water based fluids or aerospace phosphate ester hydraulic fluids.
³The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2 x standard
deviation). The accuracy was calculated in accordance with EA-4/02 and with regard to GUM (Guide to the Expression of
Uncertainty in Measurement).

Did You Know...

Contamination is the greatest single cause of lubrication malfunction and subsequent excessive wear of parts?

Less than 0.5% of a plant’s maintenance budget is spent purchasing lubricants, but the downstream effects of poor lubrication can impact as much as 30% of a plant’s total maintenance cost each year.