Online oil saturation moisture sensor for mineral oil and ester oil
The contamination of hydraulic oil and lubricating oil with moisture can cause significant operational issues when the concentration is high, and it is the leading cause of failures. Performance and Function To measure the relative humidity of oil, it directly displays the saturation level of moisture in the oil. • 0%: Completely dry oil. • 100%: The oil is fully saturated with water. Any additional water will not dissolve and will become free water, beginning to emulsify. Mineral oils have low water absorption, indicating that 500 ppm is close to the saturation limit, increasing the likelihood of free water. In contrast, ester oils have a relatively high water absorption rate, showing approximately 15% saturation at 500 ppm. Relative humidity must also consider temperature characteristics. Warm oil can dissolve more water than cold oil. Therefore, even relatively dry oil at high temperatures can suddenly produce free water when the oil temperature drops. By detecting the saturation moisture content of oil, regardless of the type or temperature of the oil, we can contribute to the preservation of the system environment.
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basic information
Filtertechnik's saturated moisture relative humidity sensor is designed to monitor the water saturation level of operating oil. To prevent saturation, the water content should be managed as low as possible, but if moisture does mix in, free water will form, leading to corrosion, sludge, and contamination. The analysis results display moisture content in ppm, but this is not a value for oil management; to prevent and manage the formation of free water, it must be displayed as a saturated moisture value (%).
Price range
P3
Delivery Time
※1 to 2 weeks
Applications/Examples of results
Target oils: Mineral oils (hydraulic oils, lubricating oils, turbine oils, etc.), ester oils, phosphate esters, fuel oils (light oil, heavy oil, kerosene, etc.), edible oils, etc.
Detailed information
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Dimension drawing
Line up（1）
| Model number | overview |
|---|---|
| FT-AHT-300-1000 | G3/4 connection, 4-20mA output, 0~100% detection |
catalog（2）
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Company information
All handled products are primarily imported from the UK, Germany, and the USA, but we maintain close communication with overseas manufacturers and strive to respond quickly and in line with the times.