Online Oxygen Content Analysis

Product Description

TDLAS Oxygen gas analyzer

  The Laser Online Analysis System is a fully dry-process system developed and designed based on the customer's specific operating condition parameters 

and requirements, leveraging our company's proven analytical control technologies alongside several internationally innovative preprocessing techniques. 

All technical specifications have been validated in real-world applications, ensuring full compliance with the user's actual requirements.

Laser Spectroscopic Absorption Technology (DLAS) is essentially a spectroscopic absorption technique that determines gas concentration by analyzing the 

selective absorption of a laser beam by gas molecules. It differs from traditional infrared spectroscopic absorption techniques in that the spectral width of 

the semiconductor laser is significantly narrower than the broadening of the gas absorption spectral lines, as shown in Figure 1-1. Consequently, semiconductor 

laser absorption spectroscopy represents a high-resolution spectroscopic absorption technique. In this system, a laser beam of a specific wavelength is directed 

through the gas sample; the attenuation of the laser intensity is directly proportional to the gas concentration. Therefore, the concentration of the target gas can 

be determined by analyzing the attenuation data of the laser intensity. Laser gas analyzers employing semiconductor laser absorption spectroscopy are theoretically

 immune to interference from background gases, resulting in highly reliable measurement results.

Operating Conditions

1. Sampling distance: Determine according to actual requirements;

2.Sample gas dust concentration: ≤300 mg/m³; 

3. Sample gas pressure: –10 kPa to 20 kPa;

4.Sample gas temperature: ≤800°C; • Sample gas humidity: ≤100%

Features

 1.Adopts TDLAS (tunable diode laser absorption spectroscopy) technology for selective oxygen measurement with high accuracy. It is not interfered with by VOC, organic solvents, CO and H2 and avoids sensor poisoning and carbon coking induced drift.

2.The unit is equipped with an integrated gas pre-treatment system,resistant to acids,alkalis, organic solvents and corrosive sample gas.It is perfectly suitable for inert-gas protection applications in pharmaceutical and chemical reactors and centrifuges.
 

3.Fast response (T90 <10 seconds); Built-in automatic interlock function: When the oxygen concentration exceeds the preset threshold, the system will trigger an alarm and automatically initiate a nitrogen purging operation, thereby ensuring explosion-proof safety during the process.
 
4.Equipped with IIC T6 Gb explosion-proof certification, it can be installed directly in Zone 1 and Zone 2 hazardous chemical areas; the absence of high-temperature heating elements eliminates the risk of ignition sources.

5.Multiple optional measurement ranges: 0–1%,0–5%, or 0–25% (volume percentage), with a maximum resolution of 0.01%; ideal for monitoring trace oxygen content in inert nitrogen protection environments.

Specification