H300 Temperature Humidity Chamber
Page 5
Figure 1: Water Filling Tube
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Using the supplied syringe, fill the water reservoir until there is about ½ to 1inch (1 ¼ cm to 2 ½ cm)
of water visible in the filling tube. Replace the filling tube plug.
Desiccant Filling and Replacement
The desiccant is the drying agent of the H300 chamber. The recommended desiccant is the Regular Drierite
8 mesh desiccant.
The H300 comes preloaded with fresh desiccant. When the desiccant is fresh, it is blue. As the desiccant
gets used up, it turns red. When the desiccant is all red, it should be replaced.
Always use gloves when handling the desiccant. Avoid inhaling the desiccant dust as it may irritate the
lungs.
