The YTS41 4‑in‑1 Oil Condition Sensor adopts piezoelectric resonance MEMS elements. Through internal integration of high‑precision signal sampling and processing units, combined with a built‑in algorithm, it can automatically and real‑time detect 8 key indicators: liquid temperature, kinematic viscosity, density, dielectric constant, water activity, water content, dynamic viscosity, and oil quality.
Key Measurements
- Temperature: ‑40 – 120 ℃ (±0.3 ℃)
- Density: 600 – 1250 kg/m³ (±3%)
- Kinematic Viscosity: 1 – 1000 cSt (±5%)
- Dielectric Constant: 1 – 6 (±3%)
- Water Activity, Water Content, Dynamic Viscosity, Oil Quality
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Description
The YTS41 is a multi‑parameter online monitoring sensor that provides comprehensive oil condition analysis. By measuring 8 key indicators simultaneously, it gives you a complete picture of your fluid's health in real time — enabling true predictive maintenance.
YTS41 is widely applied to online monitor the viscosity and density of lubricating oil, hydraulic oil, gear oil, gasoline, diesel oil, jet fuel, kerosene, biodiesel, ethanol, chemical reagents and coating inks.
Applications
Features
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Imported probes — accurate measurement of viscosity, density and temperature, with up to 8 parameters output for online monitoring.
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Fast response — data refresh frequency every second for real‑time monitoring.
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Stainless steel casing — excellent chemical and pressure resistance. Measurement is not affected by external vibration, suitable for robust online monitoring.
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Compact structure — easy system integration, on‑site calibration of integrated modules.
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Piezoelectric resonance MEMS technology — cutting‑edge sensing for high accuracy.
Why 4-in-1?
Instead of deploying 4 separate sensors, the YTS41 combines viscosity, density, dielectric constant, and temperature into a single compact probe — saving installation space, wiring, and maintenance costs.
Specifications
Measurement Ranges
| Parameter | Range | Accuracy |
|---|---|---|
| Viscosity | 1 – 1000 cSt | ±5% ~ ±8% |
| Density | 600 – 1250 kg/m³ | ±2% or ±5 kg/m³ |
| Oil Quality (Dielectric) | 1 – 6 | ±3% |
| Temperature | ‑40 ℃ – 120 ℃ | ±0.3 ℃ |
| Flow Rate | 0.3 m/s | Flow control valve if higher |
| Max Pressure | < 15 bar | Reducing valve if higher |
General Specifications
| Item | Parameter |
|---|---|
| Fluid Temperature | ‑40 ℃ – 120 ℃ |
| Working Temperature | ‑40 ℃ – 85 ℃ |
| Power Supply | DC 24V ±10% |
| IP Rating | IP66 |
| Signal Communication | RS485 and 4‑20mA |
| Mechanical Interface | Flange |
| Cable Interface | M8×1, 6 pin |
| Material | Stainless steel 316 |
| Dimension | Length 45 × 45 mm |
| Weight | 0.15 kg |
Measurement accuracy is the average value of multiple measurements in a static test in a laboratory environment, and there may be deviations under field conditions due to the influence of the external environment.
Standard Accessories
- Sensor (YTS41 unit)
- Sensor Signal Cable
The 8 Parameters
The YTS41 monitors these 8 fluid indicators simultaneously: