OMS-300 Series Integrated Oil Online Monitoring Sensor

Functions Features Specification Functions

The OMS-300 is equipped with an industry-leading high-precision and high-stability wear debris detection module. This module employs an advanced multi-coil magnetic field disturbance detection principle, combined with a high-performance data sampling and processing unit, to achieve real-time capture and cumulative output of ferromagnetic particles ≥40µm and non-ferromagnetic particles ≥150µm.

The OMS-300 also features built-in internal temperature measurement and oil flow velocity measurement, enabling self-diagnosis of the sensor’s operating environment and judgment of oil circuit flow. This ensures the sensor always operates in an optimal detection state and guarantees the representativeness of the oil sample being monitored.

The introduction of the OMS-300 enables real-time monitoring of the wear condition of large industrial equipment. By continuously monitoring the generation of wear debris and the oil’s physicochemical indicators, it can alert users to perform maintenance at the earliest stages of equipment failure. Compared to traditional maintenance schedules, this allows for lower-cost maintenance measures and helps prevent larger, more serious accidents.

Features

• Detection capability for 40µm Ferromagnetic & 150µm Non-ferromagnetic wear debris.
• Wear debris count statistics and material analysis.
• Detection of multiple physicochemical indicators including viscosity, density, and trace moisture.
• Flow velocity estimation to ensure the representativeness of the measurement.
• Early detection of abnormal wear to protect valuable assets.
• Measurement is immune to interference from external metals and magnetic fields.
• Measurement is unaffected by bubbles and moisture in the oil.
• Fast response, with adjustable data accumulation cycles.
• Excellent chemical corrosion resistance and pressure tolerance.
• No moving parts or consumables, designed for a 10-year lifespan.
• 2.5 kV isolated RS485 Modbus communication.

Specification

Ferromagnetic & Non-ferromagnetic Particles, Kinematic Viscosity, Density, Trace Moisture, Water Activity, Temperature, Flow Velocity
Optional: Dielectric Constant, Free Water
Ferromagnetic & Non-ferromagnetic Wear Debris Detection
Detection Capability	Ferromagnetic Particles (Fe)        > 40 µm (ESD), Five Bands
	Non-ferromagnetic Particles (NFe)   > 150 µm (ESD), Five Bands
Particle Passage Diameter	Φ 8 mm
Detection Rate	> 90%
Ferromagnetic Statistics	40~99µm, 100~199µm, 200~299µm, 300~399µm, ≥ 400µm
Non-ferromagnetic Statistics	150~199µm, 200~299µm, 300~399µm, 400~499µm, ≥ 500µm
Statistics Cycle	Startup self-test 30 seconds (first time), counting interval 300~3600 seconds adjustable
Particle Count	Max 100 particles/second
Oil Property Detection
Viscosity Detection	Range: 1…1000cSt (larger ranges available upon request)
	Accuracy: 5% or 5cSt, whichever is greater
	Resolution: 0.1cSt
Density Detection	Range: 600…1250 kg·m⁻³
	Accuracy: 2% or 5 kg·m⁻³, whichever is greater
	Resolution: 0.1 kg·m⁻³
Trace Moisture	Range: 1…5000ppm (calibrated based on oil type)
	Accuracy: 10% or 10ppm
	Resolution: 1ppm
Water Activity	Range: 0…1aw
	Accuracy: 3%
	Resolution: 0.001aw
Temperature	Range: -40…85℃
	Accuracy: 0.5℃
	Resolution: 0.1℃
Dielectric Constant (Optional)	Range: 1…6εr
	Accuracy: 0.2εr
	Resolution: 0.1εr
Free Water (Optional)	Range: 0-20%
	Accuracy: 0.5%
	Resolution: 0.1%
Other Parameters
Permissible Flow Rate	0.3…9L/min
Equivalent Inner Diameter	Φ8 mm (customizable)
Digital Output	RS485 MODBUS RTU, isolation voltage 2.5kV
Operating Power	DC9~30V, Max 5W
Permissible Oil Pressure	Max 1.0MPa
Applicable Fluids	Lubricating oils and hydraulic oils (synthetic and mineral-based), etc.
Fluid Temperature	-40 … 80 ℃
Ambient Temperature	-40 … 85 ℃
Storage Temperature	-50 … 120 ℃
Housing Material	Stainless Steel, Anodized Aluminum, Polycarbonate
Dimensions	150 × 80 × 80 mm (L × W × H)
Oil Port Interface	G1/4” (customizable)
Weight	< 4 kg
Protection Rating	IP66
Connection Cable	Standard: 2-meter 5-core cable, M12*1.5 straight connector, or optional M12 waterproof gland
Electromagnetic Compatibility	EN61000, EN61326-1, EN61326-2, EN61326-4
Explosion-Proof Rating (Optional)	Ex ib IIC T6 Gb

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