Photoacoustic Field Gas Monitor - Innova 1412

The LumaSense Photoacoustic Field Gas-Monitor Innova - 1412 is a highly accurate, reliable and stable quantitative gas monitor. Its measurement principle is based on the photoacoustic infra-red detection method. This means that the 1412 can measure almost any gas that absorbs infra-red light.
Appropriate optical filters (up to 5 + water vapor) are installed in the 1412's filter carousel so that it can selectively measure the concentration of up to 5 component gases and water vapor in any air sample. Further, the instrument can compensate for interference between the measured gases, using the unique Cross-compensation feature. The 1412's detection limit is gas-dependent but typically in the 10-² ppm region

Principle of PAS Measurement System

Uses

• Quantitative analysis of up to 5 components and water vapor in gas mixtures
  
• Indoor air-quality and ventilation measurements
  
• Ventilation measurements using tracer-gas
  
• Occupational health and safety measurements - of possible production or accumulation of toxic/carcinogenic substances in working areas
  
• Monitoring of anaesthetic gases in hospitals
  
• Emission monitoring of exhaust from chemical processes
  

Features

• Selectively measures a wide range of gases/vapors
  
• Linear response over a wide dynamic range
  
• High stability (low drift) makes calibration only necessary 1-2 times a year
  
• Extremely reliable due to self-testing procedures
  
• User-friendly procedures for calibrating the monitor, presenting and analyzing measurement data via the PC user interface
  
• Accurate – compensates for temperature fluctuations, water-vapor interference and interference from other known gases
  
• Extremely low-volume flushing possible
  
• Operates immediately - no warm-up time is necessary
  
• Presents measurement data both in tabular and graphic formats – up to 5 gas concentration graphs displayed, simultaneously

INNOVA Gas Detection Limits

The optical filters used in the instruments display different characteristics while sharing a basic design. Each filter comprises three separate infra-red elements; a narrow-band pass element, a short-wave pass element and a wide-band pass element. The narrow-band pass element has very specific transmission characteristics defined by the short-wave pass and wide-band pass elements, which prevents transmission of light at other wavelengths.

Read more about Detection Limits or order our Detection Limits Chart.