The condition of oils and lubricants is a key indicator of machine health. Analysis of your oil will provide you with information that other equipment monitoring and analysis techniques miss and enable you to more accurately and reliably identify issues and achieve optimal maintenance periods.
Traditional lab-based oil analysis gives detailed results but is slow and intermittent.
Speed, precision and reliability make real-time oil condition monitoring from Tan Delta the new standard for condition-based maintenance.
Tan Delta sensors are known to be repeatable and robust in the most demanding of environments and applications, having been adopted by multiple blue-chip organizations.
This makes it the perfect addition to any proactive maintenance program, with a proven ROI of under 6 months.
The Tan Delta sensor has a typical ROI of under 6 months because it saves you money in two ways:
1. Extending your oil change intervals
2. Identifying early warning signs before equipment failure
The Tan Delta system identifies both lubricant degradation and contamination to give real-time feedback on oil condition. This means that you can service the asset only when it is really needed, rather than relying on rigid, arbitrary service intervals, saving you time and money.
The sensor analyses the oil at a molecular level detecting and tracking any changes caused by wear and/or contamination. By applying proprietary analytics we give you a real-time measure of the oil condition so you know and can track your equipment’s actual maintenance condition.
Tan Delta uses complex permittivity which is on average 62 times more sensitive than dieletric measurement alone. This simply means we identify much more, faster.
We use our proprietary TDN (Tan Delta Number) scale to tell you clearly the status of your oil.
Our sensing algorithms give the oil condition a TDN between 1200 and 0, reducing as it degrades.
Oil performance inherently reduces over time at an expected rate, contamination and/or unexpected degredation will cause a deviation from this.
Tan Delta sensor systems track the actual condition of your oil, apply analytics to detect and characterise these deviations, and alert you to any problems such as water contamination.
The sensor will detect virtually any contaminant in the oil, including:
The sensor works with:
The sensor will also work with fuels, such as diesel and HFO.
The sensor must be installed where all apertures on the nose of the sensor are fully immersed in moving oil when the engine is running. For example:
The sensor must be installed where all apertures on the nose of the sensor are fully immersed in moving oil when the gearbox is in operation. For example:
The sensor must be installed where all apertures on the nose of the sensor are fully immersed in moving oil when the hydraulic system is in operation, and the pressure is below 70 bar (typically on the low pressure side). For example:
The only requirement is that the oil is moving so that it is not continuously analysing the same oil.
The sensor will detect coolant as a contaminant in oil, however it is not able to analyse and track the condition of coolant itself – or any other predominantly water-based fluid.
The maximum operating pressure for the sensor is 70 bar.
However, if the pressure rating of your system is over 70 bar there will probably be areas in your system that the sensor could be installed – e.g. the tank or low-pressure return line.
The sensor will work in any orientation.
However, we recommend that it shouldn’t be installed with the nose pointing up where debris could collect as this will affect performance.
The standard sensor is CE marked and RoHS compliant. It is also EMC rated to EN 6100-6 and shock and vibration tested to BS EN 60068-2.
The sensor has an IP rating of IP68 when connected.
We have a specific, fully certified version of the sensor suitable for hazardous environments. The OQSx-G2 HAZ is Zone 2 certified to ATEX, IECEx, UKEX and Class 1 Division 2 US/C.
The sensor supports both digital (RS485) and analog communication types. The sensor can communicate via:
– 4-20mA
– CANopen on CANbus
– J1939 on CANbus
– Modbus RTU
No. The sensor requires no regular servicing or calibration once installed, and is engineered to have an MTBF life of over 10 years.
We do offer a calibration service if this is a mandatory requirement.
Once installed the sensor is entirely maintenance free.
For the Tan Delta MOT kit, always clean the sensor nose with an approved Tan Delta cleaning fluid (e.g. odourless kerosene) between tests to prevent cross contamination, creating inaccurate results.