Tanabyte Engineering, Inc. products

The Model 722 Module supports a U.S. EPA Equivalent Method photometer with an ozone scrubber and inlet filter. The Model 722 represents the most basic configuration in the 72x Series and may be used for ambient air monitoring applications or as an Ozone Transfer Standard Photometer. The Model 722 is a direct replacement for the Dasibi 1008-AH.
    

 
    

 
   

In addition to the Equivalent Method UV Photometer, the Model 723 includes an internal zero air supply, ozone generator and a valve to switch the photometer inlet from sample air to the ozone generator output. The 723 can be used as an ambient analyzer with internal zero/span or as an Ozone Transfer Standard Calibrator, for calibrating external analyzers. A three port ozone output manifold allows ozone to be directed to the internal photometer and an external instrument simultaneously. The internal zero air supply provides clean pollutant-free air to the ozone generator with sufficient flow to supply ozone to two photometers.

The Model 724 is configured as an Ozone Transfer Standard Calibrator, with a built-in ozone generator and zero air supply. The U.S. EPA Equivalent Method photometer can either be configured to measure external ozone concentrations or to monitor the ozone generator output in order to precisely control the ozone concentration to a specified set point.

In addition to the Equivalent Method UV Photometer, the Model 725 includes an internal zero air scrubber, ozone generator and a valve to switch the photometer inlet from sample air to the ozone generator output.

The Model 726 is a basic analyzer, like the 722, but includes a Cal/Sample valve that can direct either sample gas or calibration gas to the Equivalent Method Photometer. The valve can be switeched either by external control via digital inputs or by internal timer control. Installed in either Docking Station, the Model 726 is an ideal replacement for the Dasibi 1008. Paired with the Model 724 in a Dual Docking Station, the 726/724 combo allows an ambient ozone analyzer with built-in ozone calibrator to be configured in a very compact package!