CO₂ Gas Analyzer – Infrared High Accuracy Measurement: Model 906 | QUANTEK INSTRUMENTS

The Model 906 CO₂ Analyzer is a high-precision gas analyzer designed for the continuous or spot measurement of carbon dioxide concentrations in laboratory, industrial and research environments.

Using a solid-state Non-Dispersive Infrared (NDIR) sensor, the instrument provides accurate CO₂ measurements across a wide range of concentrations, from trace levels up to 100% CO₂.

The analyzer is suitable for applications including biotechnology, controlled atmosphere storage, gas blending systems and environmental research. Its compact bench-top format makes it ideal for laboratory setups as well as industrial monitoring systems.

The Model 906 can operate on AC power or optional battery supply, allowing both fixed installation and portable operation.

Advantages

• Wide measurement range from 0–1% up to 0–100% CO₂
• Solid-state infrared sensor ensuring long-term stability
• Advanced microprocessor linearization algorithm for high accuracy
• Flexible configuration with several optional modules
• Portable or fixed operation depending on power configuration
• Reliable monitoring solution for research and industrial applications

Main Features

• Measurement technology: Non-Dispersive Infrared (NDIR)
• Available measurement ranges:
  • 0–1% CO₂
  • 0–2.5% CO₂
  • 0–10% CO₂
  • 0–20% CO₂
  • 0–30% CO₂
  • 0–50% CO₂
  • 0–100% CO₂
• Sensor design: Solid-state infrared optical cell
• Signal processing: Microprocessor linearization using a 6th-order polynomial algorithm
• Power supply: AC power with optional battery operation
• Optional internal sampling pump
• Optional analog outputs: 0–1 V, 0–5 V, 0–10 V or 4–20 mA
• Optional data logging system with graphing software
• Optional automated multi-point sampling system

Typical Applications

• Bioreactor and fermentation monitoring
• Gas blending systems
• Controlled atmosphere storage for fruits and vegetables
• Cell culture and incubation monitoring
• Greenhouse CO₂ monitoring and research
• Carbon capture and storage research
• Algae cultivation and biofuel research
• Welding gas analysis
• Environmental monitoring and climate research

Additional Information

The Model 906 integrates a compact infrared optical cell combined with advanced digital signal processing to achieve reliable CO₂ measurements across a broad concentration range.

The use of a sixth-order polynomial calibration algorithm compensates for the non-linearity of infrared CO₂ measurements, ensuring accurate readings across the full measurement range.

This analyzer is particularly suited for research laboratories, biotechnology facilities, environmental monitoring systems and industrial gas analysis applications.