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  DOM-24(Explosion-proof oil moisture meter)

OM-13
DOM-24

You just send the sample oil to us! We will calibrate the oil.
Easy installation and close monitoring !!
The amount of water in the oil can be measured in real time!
You just pass the oil through the piping where the electrodes are installed.
No adjustment work is required except for simple zero adjustment !!

Pass certificate sticker

  Purpose

Measures the water content in oils such as heavy oil and lubricating oil. It can be used for monitoring and controlling the moisture level.

  • The permittivity of oil is measured and the water content is continuously calculated based on the change because the permittivity of oil and water is significantly different (2 to 3 for oil / 80 for water).
  • You pass oil through the electrodes of the coaxial cylindrical structure. Since one calibration is performed for each oil type, stable moisture measurement with high accuracy is possible.
  • It has function that can handle several types of oil, and temperature compensation.

Principle of moisture meter in oil

Oil and water emulsion

  Application

Delivery example

When water is mixed in the oil, it promotes the oxidation of the oil, deteriorates the lubrication performance, and promotes rusting and corrosion of equipment. Moisture management in oil is necessary to improve the operating efficiency of equipment.

They've used for various moisture management.

It has function that can handle several types of oil, and temperature compensation.

Turbine oil for power plants, brake oil, edible oil, emulsion oil, lubricating oil for hydraulic equipment, rolling oil for steel mills, fuel oil for ships, etc.

Feature

●The converter and display are integrated, making it compact and easy to use.
●Due to the simple electrode structure, there is little pressure loss and it is very durable.
●You can stable moisture measurement because it uses a high-precision capacitance converter.
●Measurement error does not occur even if the oil temperature changes because the temperature is corrected.
●It can handle a wide variety of oils because the display has an oil type registration function.

Operating principle

●The transducer shows a "2" when the electrodes are filled with oil only and when only water is filled it shows "80".
※It captures the difference in permittivity. 80 is the permittivity of water and 2 is the permittivity of oil.
●If even one drop of water enters this state, the value indicated by the converter will change significantly to the positive side.
●If you adjust to let the converter display "0V" with nothing but oil and "1V" with 1% water, it will show "2V" with 2% water.
●Capacitance changes linearly with respect to moisture.

 Component

DOM-24

The power supply part is housed in a stainless steel case.
You can wire smoothly because we designed to be spacious the area around the terminal block.
This product has all the functions necessary for moisture management such as upper and lower limit alarms and temperature compensation functions.

※A:IECEx Certification seal
 B:Barrier system specifications seal

Electrode part

Basically straight pipe type is standard.
Just install the electrodes in the piping! Performs continuous measurement!
Due to the simple electrode structure, there is little pressure loss and it is very durable.

Display unit

Use this product in conjunction with a converter.
Displays numbers in a way that transforms them for their intended use.

 Specification

System specifications
ModelDOM-24(ExiaⅡCT4)
Measurement methodCapacitive type ※explosion-proof structure
Input power supplyAC85~250V 50/60Hz
Power consumptionUp to 5W
Measurement rangeStandard0~5.00wt% ※Can be changed
Measurement accuracy±0.05wt% ※No air bubbles or dirt
Analog outputAgainst the measurement range DC4~20mA Load 500Ω or less
Uper/lower relay outputA contact ※Contact capacity AC240V-3A、DC30V-2A
Specifications of each part
Power supply part
※Stainless steel box.
WeightAbout3kg
Operating temperature60℃ ※No condensation
ElectrodeProtection methodDrip-proof ※IP65 Equivalent
ConnectionFlange-JIS10K-40AFF ※Can be changed
Material of wetting partSUS304、PTFE ※Can be changed
Material of O-ringViton ※Can be changed
Operating temperature60℃ ※No condensation
Pressure resistance0.5MPa at room temperature ※Max:2MPa
Dedicated
temperature sensor
※Connect to electrodes
ConnectionR(PT)3/8
Material of wetting partSUS316