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California Analytical 602 CO2 Analyzer California Analytical Instruments Get Quote
 
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The CAI 602 Dual CO2 analyzer is designed specifically for dilution systems in which CO2 needs to be measured in low ppm levels. The analyzer uses a technique based on the infrared absorption characteristics of gases to measure concentration. A single beam of infrared energy is modulated and passed through a sample cell containing the gas to be measured. The beam emerges attenuated by the amount of energy absorbed by the gas in the sample. Changes in the concentration of the gas results in changes in the intensity of the beam. The remaining energy in the beam is passed serially through two cavities of an infrared detector containing the gas of interest and a mass flow sensor. Changes in the intensity of the beam change the pressure differential between the cavities and consequently the balance of the electrical bridge in the detector circuit. Electronic processing of the imbalance of the signal is used to generate an electrical output signal proportional to the concentration of gas measured.

Key Features

  • Temperature and Pressure Compensation
  • Single Beam Optics Provide Excellent Stability With No Optical or Mechanical Adjustments
  • Microflow Detector With High Sensitivity, Minimal Interference, and Long Life
  • Measures up to 3,000 ppm Full Scale CO2
  • Comprehensive Diagnostics/ Data Archiving
  • Auto Calibration and Ranging

Applications

  • Temperature and Pressure Compensation
  • Single Beam Optics Provide Excellent Stability With No Optical or Mechanical Adjustments
  • Measures up to 3,000 ppm Full Scale CO2
  • Comprehensive Diagnostics/ Data Archiving
  • Auto Calibration and Ranging
  • Microflow Detector With High Sensitivity, Minimal Interference, and Long Life

Technical Specifications

Available Ranges 0-1,000, 0-2,000, or 0-3,000 ppm
Repeatability +/- 1% Full Scale
Noise Less Than 1% Full Scale
Zero Drift 1% Full Scale in 24 Hours at Constant Temperature
Span Drift 1% Full Scale in 24 Hours at Constant Temperature
Response Time (T 90): 10 Seconds at 1 Liter per Minute
Sample Flow Rate 0.5 to 1.5 Liters per Minute
Sample Conditions Up to 90% Relative Humidity (Non Condensing)
Ambient Temperature Range 5° to 40°C
Warm-Up Time Approximately 2 Hours