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Qingdao Laoshan Electronic Instrument Factory Co., Ltd
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    No. 22 Hechuan Road, Licang District, Qingdao City
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Product details

The 8400D explosion-proof online gas analyzer adopts an explosion-proof structural design and is suitable for hazardous areas. It can integrate various detection technologies such as infrared, electrochemical, and magnetic oxygen, and can measure up to 270 types of gases. We can customize corresponding instruments according to customer needs, and one instrument can measure up to 6 gases simultaneously. Not only can the types of gases measured be customized according to needs, but instrument configurations can also be customized according to customers' accuracy and cost requirements, with great flexibility and applicability.

Working Principle:

The IR-208 adopts a modular design and can integrate multiple detection technologies such as NDIR infrared and electrochemical to analyze various gas components.

Most gases can absorb infrared light of different wavelengths and have unique infrared spectral absorption characteristics. The light attenuation caused by absorption satisfies Lambert Beer's law, according to which the concentration of a gas is proportional to the intensity attenuation of specific wavelengths of infrared light.

When the infrared light generated by the infrared light source of the instrument passes through the measuring chamber, the measured gas in the chamber will absorb infrared light of a specific wavelength, causing it to attenuate. The intensity of the infrared light at that frequency is detected by a detector on the other side. By comparing the intensity of the reference detector, the attenuation coefficient of the infrared light at that wavelength can be determined. According to Lambert Beer's law, the gas concentration can be calculated.

Product Features


A single analyzer can measure up to 6 gases

High measurement accuracy, up to 1% FS

Built in temperature pressure flow detector, automatic temperature pressure compensation

Adopting stainless steel measuring cell and gold-plated reflective coating, sapphire light window

Corrosion resistant material, good adaptability, high stability

Large screen LCD display, non-contact keyboard operation

Over 50 years of experience in designing and manufacturing infrared analyzers, with stable and reliable quality

Customized design and manufacturing technology to provide customers with the most suitable products

Explosion proof structure, suitable for hazardous zones one and two

Low maintenance and long instrument lifespan


Application fields:

Oil and gas transportation and recycling

Continuous Emission Monitoring System (CEMS)

Explosion limit LEL monitoring

Industrial Process Analysis

technical indicators

Measurement indicators: THC, CH4 and other gases, can be customized according to needs

Testing methods: NDIR, electrochemistry, magnetic oxygen, etc

Measurement range: 0-100%, customizable range

Response time:<10 seconds

Repeatability: ± 1% FS or ± 2% Reading

Measurement accuracy: ± 1% FS or ± 2% Reading

Zero drift: ± 1% FS/90 days

Range drift: ± 2% FS/90 days

Linearity: ± 1% FS

Resolution: ≤ 1ppm

Output: Isolated 4-20mA, 0-1/5VDC (optional), RS232

Alarm output: High and low limit alarm 9 (optional)

Power supply: 90-260VAC, 50/60Hz,<3 Amp

12, 24, or 36VDC (optional)

Sample contact material: 316SS measuring cell, sapphire light window, PTFE

Sample flow rate: greater than 0.5L/min, less than 2L/min

Sample temperature: 0-70 ° C

Sample pressure:<5psi, automatic pressure compensation

Sample conditions: no condensation, no dust

Preheating time: 5 minutes available, 15 minutes completely stable

Environmental temperature: -40 to 50 ° C

Environmental humidity:<95% RH

Air interface: 1/4 "

Explosion proof rating: Exd IIB T4, IP66

Size: 10.25 "x 10.25" x 9 "(26 cm x 26 cm x 22.86cm)

Weight: 25 lbs. (11.35 kg)

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