VOLKE/WMG Oil Sensors and Analyzers

WMG Intelligent Oil Moisture Content Monitor has the function of measuring two states: micro-water in oil (the unsaturated state of trace amounts of water in the oil) and water in the oil (the free state of mixed water in the oil). It is an oil water content monitoring instrument. water into industrial oil will cause the oil quality to emulsify and reduce the lubrication coefficient to the extreme, affecting the normal operation of machinery and equipment, and even causing serious accidents. Therefore, it is of great significance to detect trace amounts of water in lubricating oil.

WMG Smart Oil Moisture Content Monitor Features: 1. OLED and English menu, full monitoring of oil and water status

2. Two channels of 4~20mA transmission output and alarm node output

3. Accurately measure trace water and free moisture content in oil

4. RS-485 communication separated design, easy to install, stable and reliable

WMG Smart Oil Moisture Content Monitor is an industrial-grade transmitter developed to monitor the content of water molecules in industrial oil products. The sensor uses advanced foreign polymer capacitive probes, which can monitor the content of transformer oil and lubricating oil used in industrial sites. Quickly and accurately measure trace amounts of moisture. It has the function of measuring both the trace water in the oil (the unsaturated state of trace amounts of water in the oil) and the water content in the oil (the free state of mixed water in the oil). It is an oil water content monitoring instrument. water into industrial oil will cause the oil quality to emulsify and reduce the lubrication coefficient to the extreme, affecting the normal operation of machinery and equipment, and even causing serious accidents. Therefore, it is of great significance to detect trace amounts of water in lubricating oil.

WMG smart oil moisture content monitor uses water activity (aw) to express the micro-water content in oil. That is: water activity is the ratio of the moisture content in a certain substance to the total amount of moisture it can hold. It can be defined as: aw = p / p0 where, p = partial pressure of water vapor in a certain substance p0 = saturated water vapor pressure of pure water at the same temperature. According to the above formula, the of aw is related to the saturation point (p0, denominator ) into a functional relationship. The in aw is also a function of the actual water content in the oil, that is, the entry or exit of water will the water content in the oil. In other words, aw always provides an accurate indication of the saturation point margin. For example: gearbox lubricating oil temperature: 70°C saturation point: 5000 ppm. When the oil temperature drops to 30°C, the saturation point of the oil also drops to 3000 ppm. Significantly affected by temperature. Once the saturation point is reached, excess water will form an obvious oil-water layer and be precipitated in the form of free water. Since most oils are less dense than water, a layer of water often settles beneath the oil layer, creating a significant risk. In summary, measuring the aw value can accurately show the degree of risk of free water. When AW is greater than or equal to 1, when the free state exists, the product's O&W oil mixed water percentage begins to display the water content, and an alarm is output according to the set data. The oil moisture content is monitored dually, and the water content problem in the oil is dealt with in a timely manner. and replacement, which plays a double insurance role and reduces the wear and tear on equipment when the oil contains water.

Technical Parameters:

Measuring range: AW (micro water) = 0~1aw, O&W (emulsification): 0~1%

Measurement accuracy: O&W (emulsification): 0.05%

Aw (micro water): -15...40 ℃ ± (0.013 + 0.3%*mv)aw

-15...40 ℃ ±0.023aw

-15...70 ℃ ±（0.014 + 1%*mv）aw

-40...180 ℃ ±（0.015 + 1.5%*mv）aw

Response time: AW (micro water): 10 minutes (at rest); O&W (emulsification): 1 minute Display mode: OLED128*64

Output mode: two channels 4~20mA+RS485; Output contacts: three channels relay alarm

Working voltage: AC220V; DC24V

Installation method: input type, side-mounted type, top-mounted type

Connection: flange; thread

Probe material: 316L, brass Protection grade: IP67 Explosion-proof grade: Isolation and explosion-proof Medium temperature: -40—180℃

Ambient temperature: -20-80℃ Ambient humidity:<85%RH

Ambient temperature: -20-80℃

Structure diagram:

1) Button function description:

Installation method:

1. Side installation: suitable for side installation

2. Integrated installation: suitable for top installation

3. Top-mounted plug-in type: suitable for top installation

4. Multi-probe installation: suitable for high-precision measurement of large fuel tanks

Wiring diagram: