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JNYQ-H-34Ex hydrogen analyzer

The hydrogen analyzer determines the composition of a gas based on its thermal conductivity, that is, the content of hydrogen in the mixed gas is determined by measuring the thermal conductivity of the mixed gas

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Detailed description

1. Characteristics

• Single bridge compensation measurement circuit and compensation air circuit

• Digital signal processing

• Thermal sensitive components adopt seismic and anti-corrosion structures

• Linear expression of measurement output

• Passive electric shock at upper and lower limits

• Isolated standard signal

• Chinese menu touch screen operation


2. Application field

• Analysis of hydrogen content during the synthesis of ammonia in fertilizer plants;

• Monitoring of hydrogen purity in the hydrogen cooling system of thermal power plants;

• Analysis of hydrogen concentration in hydrogen production stations;

Working principle

• The hydrogen analyzer determines the composition of a gas based on its thermal conductivity, that is, the content of hydrogen in the mixed gas is determined by measuring the thermal conductivity of the mixed gas.


3. Technical parameters

• Detection range: 0.00~99.99%

• Accuracy: ≤ ± 1% F S;

• Resolution: 0.01%;

• Stability: Zero drift ≤ ± 1% F S/7d; Range drift ≤ ± 1% F S/7d;

• Repeatability: ≤ ± 1%;

• Preheating time: ≤ 30min;

• Response time: T90 ≤ 15S;

• Protection level: IP65

• Explosion proof level: Exd Ⅱ CT6;

• Isolation current: (0/4-20) mA (500 Ω)

• Isolation communication: RS232, RS485 (optional)

• Contact capacity: 220VAC, 1A 24VDC, 1A;

• Working environment: Temperature: -10 ℃~+45 ℃; Humidity: ≤ 90% RH;

• Working power supply: 220VAC ± 10%, 50Hz ± 5%;

• External dimensions: 450mm (W) x 550mm (H) x 250mm (D)

• Weight: approximately 35kg


4. Selection Guide for Thermal Conductivity Analysis Instruments




Measuring range


Instrument installation dimensions

Principles of Analysis







Thermal conductivity















Key words:

Flue gas analyzer, flue gas online monitoring, VOCS online monitoring, waste incineration online monitoring


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