Monitoring the moisture in oil is a simple way to improve the reliability of industrial equipment. In the long term, it can also lead to savings in maintenance costs.
**Features of HUMICAP in Oil Moisture Measurement** ▪ Fast: Real-time detection of moisture in oil online without the need for sampling ▪ Reliability: Provides accurate ratios up to the saturation point of water, considering temperature changes and the aging of oil under various fluctuating conditions ▪ High Stability: Excellent durability against pressure and temperature ▪ Easy Installation: No need to stop the process due to the ball valve ▪ Predictable Maintenance Tasks: Enables quick trend analysis
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basic information
Vaisala HUMICAP for Moisture Activity Measurement The Vaisala transmitter used for measuring moisture in oil is equipped with the HUMICAP sensor, a capacitive thin-film polymer sensor developed for high-precision moisture measurement in liquid hydrocarbons. The HUMICAP sensor consists of four functional layers: a glass substrate, a lower electrode, a hygroscopic polymer layer, and a porous upper electrode. The thin-film polymer absorbs and releases water as the surrounding moisture concentration changes. Water molecules move in and out of the polymer layer until equilibrium is reached between the polymer and the oil. The dielectric properties of the polymer depend on the moisture concentration. As the moisture concentration changes, the dielectric properties of the thin-film polymer change, which in turn alters the capacitance of the sensor. The electronic circuit of the device measures the capacitance of the sensor and converts it into moisture activity. Oil molecules and additives do not pass through the electrodes. Therefore, the sensor's output is independent of the type of oil. For more details, please contact us or refer to the catalog.
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Company information
Vaisala is a global leading company in the fields of meteorological observation and environmental/industrial measurement. Leveraging over 80 years of experience, we provide observations aimed at creating a better world. Vaisala is a trusted partner that can comprehensively offer innovative observation and measurement instruments and services to customers around the world. Our headquarters, Vaisala Oyj, is located in Helsinki, Finland, and we have over 1,900 employees worldwide, listed on Nasdaq Helsinki.
