Humex™ 2 Inline Humidifier

• Releases a controlled volume of water vapor into a glovebox, desiccator or other enclosure to achieve above-ambient humidity level
• Allows precise %RH humidity control when operated in tandem with Terra's Dual Purge™ System
• Low-volume vapor output minimizes water condensation and energy costs
• Ideal for biocompatibility studies, material failure testing, and other humidity research
• Recommended for enclosures up to 60 cubic feet. (1.7 m³)

The Humex 2™ Humidifier provides inline humidification of nitrogen or other process gas being fed into a glove box or similar enclosure.

During operation, a 20W resistance heater inside the Humex 2 vaporizes incoming water fed into a stainless steel chamber. Process gas, which enters the Humex 2 through separate .25" (6 mm)-diameter flexible tubing, is humidified as it passes through this chamber on its way to a glove box or other enclosure.

The Humex 2™ humidity sensor, installed inside the remote enclosure, monitors the relative humidity level. As soon as the %RH falls below a user-selected threshold, a relay inside the Humex activates the heater and a solenoid that turns on the water flow. When the %RH set point is attained, the Humex turns off heater and water flow.

Operation with the Dual Purge™ System
For optimal efficiency—and to conserve nitrogen—the Humex™ 2 can be operated with Terra’s Dual Purge™ Variable Purge Controller.

In this configuration, the Humex 2 issues a signal to the Dual Purge™ via a low-voltage cable to initiate high flow (bypassing the Dual Purge™ flowmeter) whenever the humidity falls below the set point. This high flow of process gas quickly humidifies the enclosure.

When the set point is attained, the Humex 2 deactivates the high flow (as well as the Humex™ humidification system) to conserve on nitrogen. In this low-flow purge, the flow rate is restricted by the Dual Purge flowmeter.