For over 20 years, PP Systems has been manufacturing high quality CO₂ infrared gas analyzers for researchers worldwide. The WMA-4 is designed for applications that demand a high degree of accuracy and control with minimal maintenance. The WMA-4 employs a non-dispersive, infrared measurement technique, coupled with microprocessor-based signal processing, to achieve good stability and specificity to CO₂. Our innovative "Auto-Zero" technology ensures fast warm-up, long term stability, accuracy and analyzer calibration. It also minimizes the effects on span (gas sensitivity) of sample cell contamination, source aging, changes in detector sensitivity and changes in preamplifier gain.

An ideal instrument for fixed installations requiring long term measurement (and control) of CO2.  A two channel version is also available.

System Features

• High precision, compact CO2 analyzer

• Operation from AC and DC power inputs

• Multiple ranges available

• Automatic pressure and temperature compensation

• High resolution LCD display

• Built-in sampling pump

• Integrated, failsafe air sampling system

• Voltage, current and digital (RS232) output

• Inputs for external sensors (PAR, %RH, Temperature, Oxygen)

• Interface to commercially available PID controllers for control of CO2

• Visual and audible alarm

• Integral data logging capability

Applications

• Greenhouses, nurseries

• FACE sites

• Growth chambers/environmental control rooms

• Industrial applications

• Meteorology

• Breweries

More about WMA-4