Oil analysis is a critical part of equipment reliability.But traditional oil sampling only tells you what was happening at the momentthe sample was taken.

If contamination enters the system the day after a quarterlysample, damage can develop for weeks before the problem is detected. By thetime lab results point to an issue, unplanned downtime may already beunavoidable.

That’s where real-time monitoring changes the equation.

What Is the Atten2 OW2 Sensor?

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The Atten2 OW2 is an inline oil condition monitoring sensorthat continuously measures lubricant condition while equipment operates.Installed directly in lubrication or hydraulic systems, it delivers real-timevisibility into contamination trends and abnormal operating behavior.

Instead of relying solely on periodic oil samples, teamsgain continuous insight that supports faster decisions and proactivemaintenance.

What the OW2 Measures

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Particle Contamination

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The OW2 continuously tracks particle count and sizedistribution, providing real-time ISO cleanliness codes.

Why this matters: Particle contamination is one of theleading causes of wear and failure in hydraulic and lubricated systems.Continuous monitoring allows teams to detect contamination events immediately,often within hours, instead of weeks later through lab analysis.

This enables rapid investigation and correction beforesignificant damage occurs.

Temperature Trends

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The OW2 also monitors lubricant temperature, adding valuablecontext to contamination data.

Abnormal temperature trends can indicate increased friction,lubrication issues, excessive loading, or developing component wear. Continuoustemperature data helps identify problems early and prioritize maintenancebefore failures escalate.

Moisture Monitoring as Part of a Complete Strategy

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While moisture measurement is handled by dedicated Atten2sensors such as OilMoisture or combined probes, these are commonly deployedalongside OW2 sensors to create a more complete picture of fluid health.

Together, contamination, temperature, and moisture datasupport confident, condition-based maintenance decisions.

How Real-Time Monitoring Prevents Failures

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Continuous monitoring allows maintenance teams to catchissues as they develop rather than after damage has already occurred.

• A failed seal introduces contamination and is detected within hours
• Abnormal trends trigger alerts before component failure
• Maintenance can be planned instead of reactive
• Oil     change intervals are optimized based on actual condition

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Rather than reacting to failures, teams act on early warningsigns.

Where OW2 Sensors Deliver the Most Value

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The OW2 is best suited for:

• Critical assets where failures cause downtime or safety risk
• High-value equipment that justifies continuous monitoring
• Systems exposed to contamination or harsh environments
• Equipment with recurring reliability challenges

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When applied strategically, real-time monitoring deliversstrong ROI by preventing unplanned outages and extending component life.

A Smarter Approach to Equipment Reliability

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The Atten2 OW2 does not replace traditional oil analysis. Itcomplements it.

Continuous monitoring provides immediate insight, whilelaboratory analysis delivers deeper diagnostic detail. Together, they support amore predictive, condition-based maintenance strategy.

As part of Delta360’s reliability programs, we integrateonline sensors, oil analysis, and expert interpretation to help customersprevent failures rather than respond to them.

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