Case Study
Neptunus Power
Oct 1, 2025
An oil condition monitoring system provides continuous visibility into the health of lubricating oil while machinery is in operation. By identifying changes in oil condition, contamination and lubricant degradation in real time, operators can detect developing problems earlier, make better maintenance decisions and avoid unnecessary oil changes.
Neptunus Power’s real-time oil condition monitoring system is designed for critical engines and machinery where lubricant condition directly influences equipment reliability. The system uses proprietary Full Spectrum Holistic (FSH™) technology to monitor changes in the electro-chemical properties of oil and identify changes across 22 parameters.
Instead of relying only on fixed oil-change intervals or periodic laboratory analysis, continuous oil monitoring provides a trend of oil health while the equipment remains in service. This enables maintenance teams to understand when oil condition is changing, investigate abnormal trends and take corrective action before oil-related problems develop into major equipment failures.Oil condition monitoring is the process of continuously or periodically assessing the condition of lubricant used in an engine, machine or other critical equipment. The objective is not simply to determine whether oil is still usable, but to identify changes that may indicate lubricant degradation, contamination or developing equipment problems.
Lubricating oil performs several critical functions inside machinery. It reduces friction and wear, assists with heat transfer, protects components against corrosion and helps carry contaminants away from critical surfaces. As equipment operates, the oil can gradually change because of temperature, operating conditions, contamination, fuel ingress, additive depletion, moisture and component wear.
Monitoring these changes provides an indication of oil health and can also provide valuable information about the condition of the equipment itself.
Traditional approaches may depend on periodic sampling and laboratory analysis. While laboratory analysis remains valuable for detailed diagnostics, it provides information from a specific sample at a specific point in time. Online oil condition monitoring adds continuous visibility by tracking changes while the machinery is operating.An oil quality sensor is a device used to identify changes in the characteristics of lubricant and provide information about its condition. Depending on the technology used, oil quality sensors may monitor individual properties or provide a broader assessment of lubricant condition.
The Neptunus approach uses Full Spectrum Holistic (FSH™) technology to identify changes across multiple oil-condition parameters. This provides a broader view of lubricant health than relying on a single oil-quality measurement. The system is calibrated for the specific oil profile being monitored.Send in your Enquiry for a Quote
The Neptunus real-time oil condition monitoring system is designed to monitor the quality of oil used in engines or machines and detect changes. The system is calibrated for a given type of oil and can detect Oil Quality Change Basis 22 Parameters.
Our oil condition monitoring system leverages proprietary Full Spectrum Holistic (FSH™) technology to analyze the electro-chemical properties of the oil in real-time to an accuracy of 0.001%. Unlike traditional sensors that only look at a single metric like the dielectric constant, FSH™ captures all wear and contamination elements simultaneously. Any change in any of the parameters of the oil – viscosity, particle contamination, dilution, additive depletion, flash point, etc. will change the constant value and alert the user. Long-term trends can be established, giving the operator insight into the health of the equipment itself. We have seen that as the mean time to overhaul decreases, the oil deteriorates faster. The approach is simple and most accurate: If the single sensor indicates that the oil is suitable for the manufacturer’s specified hours of operation, no action is needed. Only when the oil deteriorates before the expected timeframe, should samples be drawn and sent for detailed lab analysis.Send in your Enquiry for a Quote
Conventional oil analysis generally involves collecting a sample and sending it for laboratory testing. The resulting report can provide detailed information about the lubricant, but the information represents the condition of the oil at the time the sample was collected.
Real-time oil condition monitoring takes a different approach. Instead of relying only on periodic samples, an online sensor continuously observes changes in the oil while the machinery is operating.
This does not mean that laboratory analysis becomes unnecessary. Instead, online monitoring can act as an early-warning and screening layer. When the system identifies an abnormal change or deterioration trend, a sample can be taken for detailed laboratory analysis and further investigation. This combination can help maintenance teams move from a purely periodic inspection approach toward more condition-based maintenance.| Periodic Oil Analysis | Real-Time Oil Condition Monitoring |
|---|---|
| Oil is sampled at intervals | Oil condition is monitored continuously |
| Provides information about the sampled condition | Tracks changes and trends over time |
| Requires sample collection | Uses an integrated monitoring sensor |
| Results depend on sampling frequency | Abnormal changes can be identified between scheduled samples |
| Laboratory testing provides detailed diagnostics | Online monitoring provides continuous condition visibility |
| Maintenance decisions may rely on periodic reports | Supports faster investigation and condition-based decisions |
An oil condition monitoring sensor is the measurement component that provides continuous information about lubricant condition. The value of the sensor is not simply in detecting whether oil is present or whether one property has changed; it lies in identifying meaningful changes in the overall condition of the lubricant.
Neptunus uses a single sensing approach based on Full Spectrum Holistic (FSH™) technology. The system monitors changes associated with multiple oil-condition parameters rather than relying on a single measurement such as dielectric constant.These changes can provide useful early indications of lubricant degradation or abnormal operating conditions. For example, fuel dilution may indicate a fuel-system or combustion-related issue, while water ingress can affect lubrication performance and accelerate degradation. Additive depletion and viscosity changes can indicate that the lubricant is moving away from its intended operating condition.
By monitoring trends rather than relying on a single isolated measurement, operators can better understand whether a change is temporary, gradual or indicative of a developing problem.Send in your Enquiry for a Quote
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With a real-time oil condition monitoring system, you can access oil health data from anywhere, allowing you to keep an eye on the performance of your machinery even when you’re not on site.
The Neptunus system provides users with multiple remote ways to access and view their oil condition data, including on a local display, through Bluetooth connectivity to a mobile device, and on a cloud-based platform.
With our remote condition monitoring, it is easy for users to monitor their oil condition data in real time and make informed decisions about maintenance and repairs.Send in your Enquiry for a Quote
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