California Analytical 602 CO2 Analyzer
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.
Features:
Auto Calibration and Ranging
Comprehensive Diagnostics/ Data Archiving
Measures up to 3000 ppm Full Scale CO2
Microflow Detector With High Sensitivity Minimal Interference and Long Life
Single Beam Optics Provide Excellent Stability With No Optical or Mechanical Adjustments
Temperature and Pressure Compensation
| Available Ranges | 0-1000 0-2000 or 0-3000 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 |