High precision online dew point meter

FT-Y30The electrolytic humidity meter is a new type developed by our companyHigh precision online dew point meterThe instrument adopts a phosphorus pentoxide principle sensor, combined with microcontroller control technology, and has the characteristics of high measurement accuracy and easy operation, especially suitable for detecting trace moisture content in corrosive gases such as chlorine gas, ammonia gas, natural gas, etc.

applicationField:

High precision online dew point meterapplied toPrecise detection of trace moisture content in various corrosive gases in industries such as air separation, medical pure oxygen, natural gas, chlor alkali, fertilizers, electronic power, mechanical manufacturing, and others.

Instrument features:

At the bottomEquipped with automatic calibration functionRespond quickly、high sensitivityExcellent stability.

At the bottomlarge screendot matrixformulaLCD，optionaldisplayUnitdew pointtemperature orVolume ratio（ppm/v）、 Absolute humidity (mg/m)³）

At the bottomAutomatic measurement datareal-timerecord，The recorded data can be displayed in the form of curves or lists.

At the bottomTwo arbitrarily adjustable control points,passiverelay output, standard4-20mA current output.

At the bottomstandardRS232 or RS485 communication port, capable of communicating with computers.

At the bottomstandard19”Aluminum alloy casing, easy to install.

Following standards:

At the bottomGB/T 5832.1-2016Gas Analysis Determination of Trace Moisture 第Part 1: Electrolytic Method

At the bottomGB/T 5832.2-2016Gas Analysis Determination of Trace Moisture 第Part 2: Dew Point Method

At the bottomGB/T 13277.3-2015Compressed Air 第Part 3: Humidity Measurement Methods

Technical Specifications:

At the bottomMeasurement principle: electrolysis method (phosphorus pentoxide)

At the bottomMeasuring range:（0500ppm/1000ppm）

At the bottomessence Degree:≤±1%

At the bottomheavy again Sex:≤0.5%

At the bottomResponse time:T90 ≤ 60 seconds

At the bottomSample gas flow rate: 200ml/ min

At the bottomSample gas pressure:0.05 MPa ≤ inlet pressure ≤ 0.1 MPa (outlet must be at atmospheric pressure)

At the bottomWorking environment: -25℃～＋55℃；humidity≤90%RH(No condensation)

At the bottomelectricity Source:220VAC±10%The50Hz±5%(Charging power supply)

At the bottomOverall dimensions:485Mm (width) ×135Mm (height) ×360Mm (depth)

At the bottomHole size:452Mm (width) × 134Mm (height).

At the bottomheavyQuantity: Approximately5kg

Principle Description

The characteristic of using materials such as phosphorus pentoxide to absorb moisture and decompose into polar molecules, thereby accumulating charges on the electrode,When the analyzed sample gas enters the electrolytic cell, the moisture in the gas is coated on the surface of the probeP₂0₅ The moisture absorbing agent absorbs and is electrolyzed into hydrogen and oxygen by the direct current voltage applied to the probe electrode, and discharged with the sample gas.

The reaction process during measurement is as follows:

P₂O₅+3H₂O→2H₃PO₄ Moisture absorption process

4H₃PO₄→2P₂O₅+6H₂↑ +3O₂↑ Electrolytic process

During the electrolysis process, the sample gas generates an electrolysis current. According to Faraday's law of electrolysis and the gas state equation, the electrolysis current generated under certain temperature, pressure, and flow conditions is proportional to the water content in the gas. As long as the magnitude of the electrolysis current is measured, the water content of the gas can be determined.