The General Eastern Deozonator is a device which uses patent pending technology to measure the dew point temperature of a gas containing ozone in concentrations of up to 10%. When used with corona discharge ozone generators, this system provides proof of dry gas purge during start up, early warning of water leaks in the generator, and warning of hydrocarbons in the generator gas feed.

Highly corrosive ozone is decomposed without changing the water vapor content of the gas stream with a proprietary sample system developed by General Eastern over a three year period and proven at a water treatment plant in the USA. The sample system is a flow-through device located in-line just before the dew point sensor. Gas exiting the sample system at a flow rate of 2 scfh, as required by the dew point sensor, will contain no measureable ozone even when ozone concentration in the sample at in excess of 10%. The sample system does not contain a catalyst or any other hygroscopic material. The sample system incorporates an integral solenoid valve designed to allow gas flow only when the deozonator device is functioning properly, which protects the dew point sensor from exposure to destructively high concentrations of ozone.

At the heart of the measurement system is a General Eastern E4/1311DR Chilled Mirror dew point hygrometer. This instrument measures dew point temperatures down to -70ºC (-94ºF) at an accuracy of better than +/- 1ºC at this level. The instrument is virtually drift-free and provides laboratory-grade measurements and traceability to NIST. Analog outputs, a digital output, and a relay output are available for interface to alarm or control devices. Once stabalized at operating dew point temperatures typical for ozone generators, the E4/1311DR system provides rapid response to increasing dew point temperatures.

The General Eastern dew point measurement system is available in two configurations. A complete system on an aluminum mounting plate, plumbed and wired, is the simplest configuration. The user supplies power, cooling water for the sensor, and brings the sample gas to the system via 1/4" tubing. This system includes a rotameter for flow control and a junction box for wiring. Alternately, all of the system components are available separately to facilitate panel mounting or other user-specific requirements.