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 Des-Case 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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MEASUREMENT PERFORMANCE
Measurement Range	0-1 aw, 0 -100% RH
Moisture Accuracy (including non-linearity, hysteresis, and repeatability)	0 – 0.9 aw ± 0.02 aw, 0.9 – 1.0 aw ± 0.03 aw
Response time in oil flow (typical)	< 1 min (dry-wet)
Temperature Accuracy at +68°F (+20°C)	± 0.36°F (0.2°C)
OPERATING ENVIRONMENT
Electromagnetic compatibility	EN61326-1
Ambient temperature	-40…60 °C (-40…140 °F)
Storage temperature	-40…80 °C (-40…176 °F)
Oil temperature	-40…100 °C (-40…212 °F)
Oil flow	Some flow recommended
Pressure Rating	0…200 bar (0…2900 psi)
Fluid compatibility¹	Petroleum based and synthetic fluids
INPUTS & OUTPUTS
Analog current output	0 – 20 mA, 4 – 20 mA
Analog voltage output	0 – 5 V, 0 – 10 V
Digital output	RS-485, MODBUS RTU
MECHANICAL SPECIFICATIONS
Electrical connection	M12 8-pin plug
Connection	G1/2’’ BSP
Supply voltage	21-28 VDC
Supply current	20 mA + load current
Housing / protection rating	Stainless steel (AISI 316L) / IP66

¹The MCS is not suitable for water-based fluids or aerospace phosphate ester hydraulic fluids.

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.