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What is Dry Air Purge?

  • Creates dry atmosphere in the chamber.
  • Consists of an air drier, solenoid valve, flow meter, injection tube, pressure relief vent.
  • Heatless Regenerative Desiccant Air Drier.
    • Takes the moisture out of "shop air".
    • Moisture is purged from two dessicant towers on an alternating basis, at 30 second intervals (heatless regenerative process).
  • For low controlled humidity in humidity chambers (below 6°C dewpoint limitation of standard humidity range) .
  • To eliminate condensation in temperature chambers. Why you might get condensation in any chamber...
  • Higher initial cost compared to GN2 Purge.
  • Customer needs to have a large, noisy air compressor.
  • May not be an issue if customer already uses compressed air for shop tools.
  • Noisy (burst of air) when it cycles every 30 seconds.
  • Field installable on Model 1016H, Model 1016C, Model 1016S, Model 123H, Model 123C or Model 115A only.
  • Not field installable on all other models - must be requested at time of order.   

Dry Air Purge

Dry Air Purge on TestEquity 1027 Series Chamber
(Similar arrangement on 140, 1007, and 3007 Series)


Dry Air Purge

Dry Air Purge concept for TestEquity 1016 Series,
123 Series or Model 115A Chamber (Field Installable).
Dry Air Package connects to the GN2 Purge Inlet.

Achievable Conditions