Oil Wear Early Warning Test Kit

Copper-Related Wear Indicator by UV Fluorescence Method

Failures in industrial machinery usually do not occur suddenly. Micro-wear that begins on bearings, bushings, gears, and friction surfaces may start leaving traces in the oil long before the machine stops. These traces may not be visible to the naked eye, may not immediately appear as a change in machine noise, and vibration values may not yet have reached alarm levels. However, used oil becomes an important indicator of what is developing inside the machine.

Testonic WearSense™ Oil Wear Early Warning Test Kit is a practical field test kit developed for the rapid evaluation of copper-related wear indicators in machine oils. The product helps detect early wear trends especially associated with copper and copper-alloy components.

This kit treats oil not merely as a consumable to be replaced, but as a technical information source that reflects the internal condition of the machine.

Oil speaks before the machine does

Before bearing seizure, bearing damage, or friction-related component deformation occurs in a machine, small metallic wear products may begin to form inside the system. In particular, bronze bushings, copper-alloy bearing elements, bearing cages, and metal friction surfaces may release microscopic metallic traces into the oil during operation.

WearSense™ uses the UV fluorescence method to evaluate these traces. The special test system included in the kit helps interpret copper-related wear indicators extracted from the oil through fluorescence behavior.

Under UV light, strong fluorescence indicates a lower metallic load, while decreased or quenched fluorescence may serve as an early warning that copper-related wear indicators in the oil have increased.

Why is it not enough to rely only on operating hours?

In many facilities, oil replacement is still performed according to fixed service intervals. For example, oil may be scheduled for replacement after 500, 1,000, or 5,000 operating hours. Although this method is practical, it does not always reflect the real condition of the machine.

Two machines operating for the same duration do not necessarily work under the same conditions. One machine may operate under low load and stable temperature, while another may be exposed to heavy load, dusty environments, temperature fluctuations, vibration, and intense mechanical stress. Therefore, it is important not only to know how many hours the oil has been used, but also what the oil has been exposed to during that time.

If oil is replaced too early, costs increase. If it is replaced too late, wear may accelerate. WearSense™ helps support a more informed decision between these two risks.

What does Testonic WearSense™ provide?

Testonic WearSense™ provides maintenance teams with a rapid preliminary field assessment. The test performed on used oil gives a practical indication of whether there may be an abnormal copper-related wear trend inside the machine.

This evaluation is useful for facilities seeking answers to questions such as:

Can the machine oil still be used safely?
Should the oil replacement interval be brought forward?
Could there be early wear originating from bearings, bushings, or similar components?
Should the machine be taken for detailed inspection?
Is laboratory oil analysis required?
Can the maintenance decision be supported by preliminary field data rather than assumptions alone?

In this respect, WearSense™ is a practical field control tool that supports Condition-Based Maintenance and Predictive Maintenance applications.

Working principle

The Testonic WearSense™ kit is based on preparing the machine oil sample with a special extraction solution and then evaluating the result using a UV fluorescence reference card.

The general application principle is as follows:

An oil sample is collected.
The sample is prepared using the special solution included in the kit.
The separated phase is evaluated with the fluorescence indicator system.
The fluorescence observed under UV light is compared with the reference card.
The result is interpreted as low, medium, or high risk.

This allows maintenance personnel to perform rapid preliminary field control without the need for complex laboratory equipment.

Easy interpretation with UV fluorescence reference card

The UV fluorescence reference card included in the kit helps users visually interpret the test result more easily. On the reference card, lower copper levels are represented by brighter green fluorescence, while increasing copper-related wear indicators are represented by reduced fluorescence and darker color appearance.

This structure allows the user to interpret the result not merely as “color changed / did not change,” but as a more understandable preliminary evaluation of the wear risk level.

Where can it be used?

WearSense™ is not limited to a specific industry. It can be used in many systems where oil is present, metal friction surfaces operate, and the cost of unexpected downtime is high.

Main application areas include:

• Heavy-duty machinery

• Hydraulic systems

• Gearboxes

• Bearing and bushing systems

• Generators

• Compressors

• Industrial pumps

• Production lines

• Mining equipment

• Cement plants

• Textile machinery

• Food and process industry equipment

• Marine and heavy vehicle maintenance applications

The key point is not the industry itself, but the machine risk. If unexpected machine downtime creates significant cost, monitoring early signals from the oil is valuable.

Not just an oil test, but maintenance decision support

Testonic WearSense™ is not designed only to answer the question “Is the oil contaminated?” Its main purpose is to help interpret the wear trend inside the machine through used oil.

For this reason, the kit can be used both for one-time checks and as part of a regular maintenance program. When samples taken from the same machine at defined intervals are compared, the machine’s normal operating behavior and changes over time can be observed more clearly.

Regular monitoring provides maintenance teams not only with an instant result, but also with an idea of the machine’s wear trend.

Does it replace laboratory analysis?

Testonic WearSense™ is not developed to replace detailed laboratory oil analysis. It is designed for rapid preliminary field evaluation.

ICP-OES, spectrometric oil analysis, and comprehensive tribological tests remain important for detailed elemental analysis. However, the results of these analyses are not always immediately available in the field. WearSense™ provides maintenance teams with a rapid warning and supports the decision to proceed with laboratory analysis or mechanical inspection when necessary.

The correct usage approach is:

WearSense™ provides rapid early warning in the field; laboratory analysis provides detailed confirmation when needed.

Key features

• Visual evaluation by UV fluorescence method

• Test structure focused on copper-related wear indicators

• Rapid preliminary field control

• Practical use supporting oil replacement decisions

• Early warning approach for bearing, bushing, and friction component wear

• Suitable for Condition-Based Maintenance and Predictive Maintenance applications

• Easy result interpretation with reference card

• Approximate 50-test kit format

• Essential test components supplied in the box

Kit contents

• Solution A – Extraction Solution

• Solution B – Neutralization Solution

• Solution C – Standard Calcein Solution

• Solution D – Standard Copper Solution

• UV lamp

• UV fluorescence reference card

• Test cup / sample container

• Pipette

• Comparison tubes

• Instructions for use

Conclusion

The appearance of machine oil does not always reflect the real condition of the machine. The oil may look clean while still carrying wear signals. Similarly, oil may appear darkened, but what truly matters is what the oil indicates about the wear process occurring inside the machine.

Testonic WearSense™ Oil Wear Early Warning Test Kit helps maintenance teams evaluate machine oil more consciously, plan oil replacement intervals more accurately, and receive early warning against unexpected mechanical failures.

Because in many cases, oil speaks before the machine stops. WearSense™ makes that language faster, more practical, and easier to understand in the field.