+44 203 286 8189 steve.jones@westside-int.com
Low power, noiseless, maintenance free dehumidification for enclosures

Smallest of the Rosahl SPE dehumidifiers

ROSAHL small cabinet dehumidifiers offer economical air drying for small enclosures and peace of mind to manufacturers seeking to tropicalise or protect electrical control panels and sensitive equipment.  In addition to rust, moisture can cause corrosion to other metals and electronic devices: sensitive equipment such as lenses can also be affected resulting in failure or reduced performance.  ROSAHL reduces the moisture to safe levels.

ROSAHL is a solid state polymer membrane that mounts on the side of an enclosure.  When a 3V dc supply is attached, water vapour inside the cabinet is attracted to the membrane where electrolysis splits it into constituent parts.  The hydrogen ions then migrate through the membrane to recombine with oxygen on the outside.

With a workable service life of over ten years; requiring no maintenance; having compact dimensions; silent operation and with a low power consumption it is a unique solution for fit-and-forget applications.  When the cost of a service visit or return to base warranty is impractical, ROSAHL is the ideal solution.

The smallest unit is the RD1 and has dimension of 18 x 24 x 5mm excluding electrical terminations.  It is suitable for air drying sealed cabinets up to 0.2m³ (7 cu ft) in summer or winter conditions.  It can be used indoors or out.  It can be used with a humidistat if required, or run 224/7.  Typical power consumption at 3V is 80mW and the unit requires a suitable power source.