YTS-D-1 Oil Quality Sensor

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The YTS-D-1 Oil Quality Sensor monitors the dielectric constant of lubricating oil — a property that changes as impurities like water content, wear particles, acid value, and base value build up in the oil. By tracking dielectric constant changes over time, you can understand the overall performance trend of your lubricating oil, detect aging, determine oxidation degree, and ultimately assess oil quality for optimized drain intervals.

Key Measurements

Oil Quality (Dielectric constant): 1 – 6 (±3%)
Temperature: ‑40 – 120 ℃ (±0.5 ℃)
Extremely sensitive to moisture contamination
Continuous, rapid detection of oil degradation

Description

The dielectric constant of lubricating oil is affected by impurities such as water content, wear particles, acid value and base value. By monitoring the change of dielectric constant with our YTS-D-1 oil condition sensor, you can understand the overall performance trend of your lubricating oil and obtain the aging status of the oil sample.

The degree of oxidation can also be used to determine the overall quality of the oil sample — enabling condition‑based oil changes rather than time‑based drain intervals.

Applications

The YTS-D-1 can be applied to monitor oil quality and temperature of:

Lubricating Oil Hydraulic Oil Gear Oil Engine Oil Fuel Oil Insulating Oil Turbine Oil Synthetic Ester Light Oil Heavy Oil

It can also be used as a research tool for tribology and wear analysis in universities, oil analysis labs, and scientific research institutes.

Features

1
Extremely sensitive to moisture contamination — early detection of water ingress.
2
Accurate measurement under various harsh conditions.
3
Well‑designed probe structure — robust, reliable, and extremely easy to clean.
4
Worldwide commercial and technical standards certification.
5
Continuous and rapid detection of equipment dielectric constant.
6
Significant savings on oil change costs and waste oil disposal.
7
Reduced carbon emissions — less oil waste, better environmental protection.

Specifications

Measurement Ranges

Parameter	Range	Accuracy
Oil Quality (Dielectric)	1 – 6	±3%
Temperature	‑40 – 120 ℃	±0.5 ℃
Flow Rate	0.5 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
Mechanical Interface	G 3/4
Cable Interface	M8×6pin
Material	Stainless steel 316
Dimension	Length 110.8 × φ34 mm
Weight	0.15 kg

Standard Accessories

Sensor (YTS-D-1 unit)
Sensor Signal Cable

How Dielectric Monitoring Works

New, clean oil has a stable, known dielectric constant (typically ~2.1‑2.3 for mineral oils).

As the oil ages, the dielectric constant increases because of:

Water contamination (water has a dielectric ~80)
Oxidation by‑products
Wear particle buildup
Additive depletion

By tracking the dielectric constant trend, you know exactly when oil should be changed — not too early (wasting money) and not too late (risking damage).

Sustainability Benefits

By optimizing oil drain intervals with the YTS-D-1, facilities typically reduce oil consumption by 20–50%, cutting both operational costs and carbon footprint.