Cyclic corrosion tests expose specimens to a series of different environments in a repetitive cycle. Simple tests may consist of cycling between two conditions: fog and dry. More sophisticated procedures, such as automotive, call for multi-step cycles incorporating humidity or condensation, along with salt fog and dry-off. With the Q-Fog, you can cycle through all these environments in one chamber.  And, with the custom controller, you can easily program complex test cycles or run any of the pre-programmed procedures.

Fog Function

• During the Fog Function, the corrosion tester typically operates as a conventional salt spray.
• Corrosive solution from the internal reservoir is pumped to the nozzle.
• Compressed air is humidified by passing through the bubble tower on its way to the nozzle (except for Prohesion tests).
• Nozzle atomizes solution air into a corrosive fog.
• Chamber heaters maintain the programmed chamber temperature.

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Dry-off Function

• During the Dry-off Function, a purge blower forces room air over an air heater and into the chamber. This creates a low humidity condition inside the chamber.
• The chamber temperature is controlled by the chamber heaters and the air heater.

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Humidity Function

• During the Humidity Function, the chamber is maintained at 100% relative humidity by forcing hot water vapor into the chamber.
• The vapor generator heater maintains the programmed chamber temperature.
• The Humidity Function is available on model CCT only.

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