Nova Analytical Systems Inc. Carbon Dioxide Analyzer Model 423A

The Nova 423 Series Carbon Dioxide monitor/controller has a sensitive solid-state infrared CO2 detector which continuously displays detected CO2 on a front panel digital meter. A built in sample pump draws in a sample through a filter and flow meter then on to the solid state infrared detector for analysis. A 4-20mA linear output signal is available for operation of a recorder or input to a computer. The Model 423 CO2 Monitor can be time shared between a number of sample points using a Nova automatic sequencer. Calibration need only be done once per year. Applications include HVAC and IAQ systems, CO2 monitoring and control of greenhouses, wineries, breweries, food processing plants or any area requiring a stand-alone CO2 monitor or controller.