The YTS31 3‑in‑1 Oil Condition Sensor uses piezoelectric resonant MEMS components. Through an integrated high‑precision signal sampling and processing unit, combined with advanced algorithms, it can automatically detect density, viscosity, and temperature of the liquid in real time — requiring no operator intervention.
Key Measurements
- Temperature: ‑40 – 120 ℃ (±0.3 ℃)
- Kinematic Viscosity: 1 – 1000 cSt (±5%)
- Density: 600 – 1250 kg/m³ (±3%)
- Fast response — data refresh every second
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Description
The YTS31 online density and viscosity sensor is easy to use and requires no operator intervention. All tests are done automatically by the sensor. The user can simply install it on the pipe to measure density, viscosity, and temperature through the production process.
YTS31 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 ink.
Applications
Features
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Imported probes — accurate measurement of viscosity, density, and temperature with online monitoring capability.
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Fast response — data refresh frequency every second for real‑time monitoring.
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Stainless steel outer casing — excellent chemical and pressure resistance. Measurement is not affected by external vibration, suitable for robust online monitoring requirements.
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Compact structure — easy system integration, on‑site calibration of integrated modules.
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Piezoelectric resonant MEMS technology — cutting‑edge sensing for high accuracy and reliability.
Why 3-in-1?
The YTS31 combines viscosity, density, and temperature into a single compact probe — ideal for applications where you need fundamental fluid properties without the complexity of multi‑parameter sensors. Perfect for process control and quality assurance.
Specifications
Measurement Ranges
| Parameter | Range | Accuracy |
|---|---|---|
| Viscosity | 1 – 1000 cSt | ±5% ~ ±8% |
| Density | 600 – 1250 kg/m³ | ±2% or ±5 kg/m³ |
| Temperature | ‑40 – 120 ℃ | ±0.5 ℃ |
| Flow Rate | 0.3 m/s | Flow control valve if higher |
| Online 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 / 4‑20mA / CAN 2.0B (optional) |
| Mechanical Interface | Flange |
| Cable Interface | M8×1, 6pin |
| Material | Stainless steel 316 |
| Dimension | Length 45 × φ45 mm |
| Weight | 0.17 kg |
The 3 Parameters
The YTS31 monitors these 3 fundamental fluid indicators simultaneously:
Standard Accessories
- Sensor (YTS31 unit)
- Sensor Signal Cable
When to choose YTS31?
Choose the YTS31 when you need to monitor the fundamental physical properties of your fluid (viscosity, density, temperature) without the added complexity of dielectric or moisture measurements. Ideal for process control, quality assurance, and applications where oil aging is less critical than physical property changes.