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120 V Humex 9081-02 39393 $2,8141-3 Days2
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240 V Humex 9081-02-220 39394 $2,81415-19 Days3
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Product Details

• 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 steam 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

Features & Benefits

Features & Benefits

Humex 2 Inline Humidifier

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 steam 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 0.25" (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 both 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 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). In this low-flow purge, the flow rate is restricted by the Dual Purge flowmeter.

Specifications
  • Dimensions: 12"W x 11.25"D x 7"H (305 mm x 286 mm x 178 mm)
  • Weight: 16 lbs. (7257 g)
  • Power: 12V/DC (from Dual Purge or 12VDC supply) for electronics; 120VAC for heater
  • Sensor Dimensions: 1.5" x 0.75" x 4" (38 mm x 19 mm x 102 mm)
  • Case Material: 304 Stainless steel
  • Water Line Pressure: 35 psi
  • Water Filter: Activated charcoal
  • Gas Line Pressure: Should be externally regulated between 20 - 35 psi**
  • Humidification Rate: 35% RH/cu. ft. of enclosure/hour
  • Humidity Display: 3 1/2 digit LED display
  • Humidity Output: 0-5V
  • Measuring Range: 0-100% RH
  • Accuracy (at 20° C): ± 2% RH
  • Display Resolution: ± 0.1% RH
  • Temp. Dependence: ± 0.04% RH/°C
  • Sensor Calibration: None required. Calibration (“Add”) mode allows %RH readout adjustment to independent calibration source, if required
  • Heater: 20W, 120VAC resistance heater in stainless steel housing; 1.25" x 0.25" (32 mm x 6 mm)
  • Water Solenoid: 6W
  • Fuse: 4A

* Flow should be externally regulated between 5 - 20 CFH

** User-furnished regulator or Dual Purge System required for gas pressure regulation

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

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