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Cost vs. Control: Terra Desiccators Simplify Your Choice You need to protect sensitive samples, but you don’t want to overpay.
Terra makes product selection as easy as 1-2-3!
1. Critical Control Demands For applications that require not only a low-RH set point, but a system that recovers it quickly when doors open/close, allows a different set point in each chamber, and/or protects against static and particulate contaminants.
High access frequency: Doors open/close before system can recover target set point level.
Low exposure tolerance: Microelectronic or pharmaceutical samples that degrade very quickly when exposed to moisture.
Exposure testing: Requires a separate %RH monitor/control in each desiccator chamber.
ESD-sensitive parts: Minute static discharge results in severe degradation, cuts yields.
Particle Sensitivity: Critical contamination requirements won’t tolerate materials that shed particles or corrode.
No plated or outgassing materials used! Critical control models use electropolished stainless steel, dissipative PVC and non-adhesive gaskets.
These desiccators add an RH display/control module that lets you specify a humidity set point. Since each unit has only one sensor per cabinet, however, large multi-chamber models are not as responsive, and can’t recover a low RH set point, as quickly as Terra’s “Critical Demand” models. Hardware may contain chrome-plated parts or adhesive gaskets.
For occasional nitrogen purging, add a flowmeter and relief/bleed valve. You won't have monitor/control capabilities, but your parts will stay dry! If no RH control is needed, use them as dust-free storage cabinets.