by Stege | Jun 6, 2017 | Accessories, Posts
Open and enclosed power supplies To ensure reliable operation of Rosahl membrane dehumidifiers under all operating conditions it is important to use a switching power supply (PSU) with the performance specified in the relevant membrane specification sheet. Service...
by Stege | May 16, 2017 | Posts
Is Rosahl waterproof? Rosahl dehumidifiers work by passing gasses through the polymer membrane to the outside of an enclosure. To achieve this, they must be porous to gas and vapour. However, they are not porous to solid particles or liquids under normal conditions....
by Stege | Apr 25, 2017 | Posts, Using Rosahl
Micro-dehumidifiers are used to air-dry small enclosures and cabinets up to 4m³. This removes the risk of moisture damage and condensation. They are used in electrical cabinets, instruments CCTV and a wide range of other applications. One of the many benefits of solid...
by Stege | Apr 18, 2017 | Selection
Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when an electric current is passed through them. Rosahl dehumidifiers are mounted over a cut-out in the side of the enclosure, and use a small electrolytic...
by Stege | Apr 11, 2017 | Posts
Designed for industrial and commercial applications, Rosahl micro-dehumidifiers use a solid polymer membrane to remove moisture from sealed enclosures when a low voltage is applied. The products cover volumes from one litre to 4m³. A small cut-out is made in...
by Stege | Apr 4, 2017 | Posts
Rosahl is a unique, low power electric micro-dehumidifier for enclosures from under one litre up to 4m³. It uses a polymer membrane electrolyte, driven from a 3V DC power source. This is usually supplied from a transformer, but when correctly applied, it can be...
by Stege | Mar 26, 2017 | Posts
Protecting photonic devices from moisture damage Removing moisture from small enclosures is a problem for engineers. The water vapour present can affect the performance the equipment in various ways. For example, it may affect the outcome the process. Alternatively,...
by Stege | Sep 23, 2016 | Applications, Posts
Cabinet humidity levels can be controlled within tolerance using the ROSAHL solid-state ionic membrane dehumidifiers. This is achieved by having either one or two membranes: one to humidify and one to dehumidify. They are used for accurate cabinet humidity control...
by Stege | Sep 16, 2016 | Featured, Posts
Protecting remote equipment from humidity and condensation damage Rosahl is a maintenance-free electric dehumidifier designed for use in electrical cabinets with volumes one litre and larger. It is frequently used for protecting remote equipment from humidity and...
by Stege | Sep 1, 2016 | Applications, Posts
Temperature change is key to cabinet humidity control Large temperature changes have a significant impact on relative humidity levels, and this is particularly significant when considering enclosure dehumidification. It is difficult to keep a fixed relative...
