Photonex UK 2013 Exhibition

  Photonex 2013 is the UK’s showcase exhibition dedicated to photonics, applied optical equipment, biophotonics, fibre optics, lasers, vision & light.  This year’s event will be held at the Ricoh Arena in Coventry on 16 &  17  October 2013 Three exhibitions and conference In addition to photonics, the event offers visitors the opportunity to visit a number of associated events Biomedical and Biophotonic applications, Vacuum Expo, and Vision UK.   Running concurrently will be a two day Conference and Industry Programme coverings application and technology advances,...

Photonix Exhibition 2013 – photonics and laser light

Rosahl exhibiting at Photonix 2013 – photonics and laser light exhibition  Tokyo Japan, 10-12 April 2013 Ryosai Technica Company will be exhibiting their latest generation of Rosahl compact solid state dehumidifiers, designed to protect opto electronic devices from moisture damage due to high humidity. Optical laser technology has played an important role in technological innovation electronics, automotive, telecommunications, energy, medical, and in a variety of areas, the rapid growth in demand is expected to accelerate.  However many device are sensitive to high levels of humidity...

Micro dehumidifier protects opto-electronics from moisture damage

Rosahl is a solid state micro dehumidifier designed to protect sensitive electronic and opto-electronic devices from moisture damage.  It uses a solid polymer electrolyte to remove moisture from enclosures from 250ml up to 2m³. According to specialist technical consultancy ERA Technology, printed circuit boards (PCBs) can also suffer from a variety of problems if the surface is contaminated with electrically conducting materials. Combined with moisture, this results in a lowering of resistance between tracks and pads and can lead to corrosion of metals. (Click link to see the full article on...

The world’s smallest electric dehumidifiers

Avoiding moisture damage to sensitive electronic and optical equipment

If you need to avoid moisture damage to electronic and optical equipment and the term  dehumidifier conjures up images of a floor mounted household device for drying rooms or laundry, then think again.  Rosahl is an innovative new way to remove moisture from small cabinets starting from only one or two litres in size. It has been designed to prevent moisture damage to sensitive electronics and optics.  It also stops general corrosion and tracking of PCBs. ROSAHL is a unique solid state dehumidifier.  By applying a low voltage DC supply to its solid polymer electrolyte (SPE) moisture...

PayPal is first choice at Rosahl

From June 2012 Rosahl.co.uk is accepting payments by PayPal.   Rosahl clients don’t have to pay extra to enjoy the safety, speed and convenience of PayPal. In fact, you can take advantage of all these great benefits for free: Free to open a PayPal account Free to shop online in the UK at thousands of websites Free protection wherever you shop with PayPal, so in the unlikely event that an item doesn’t arrive or isn’t what you expected, you can get your money back. Terms and conditions apply. Find out more Free to send money in the same currency to anyone in the UK when...

Rosahl website implements auto-translations

During June 2012 the Rosahl website is implementing a translation button for non-English speaking clients. The button appears at the top of each page and offers a machine translation of the contents.   The main pages will feature the the translation button which uses Google Translate as its engine.  Readers can select any one of over 50 languages.  These pages will be followed by the post (News) pages and the process will be completed through June. Rosahl ionic membrane dehumidifiers are shipped worldwide by Westside International which is based in Oxfordshire in the...

10 facts about using solid-state dehumidifier ROSAHL

Rosahl is the worlds smallest electric dehumidifier Rosahl is ultra compact ( the smallest is 25% the size of an AA battery) Rosahl is silent in operation Rosahl has no moving parts to wear out Rosahl removes moisture by electrolysis Requires requires no maintenance or drainage Rosahl has a long service life (six years is a typical half-life) Rosahl can dry containers to below 10% RH Rosahl has a very low average power consumption (80mW for the smallest version) Rosal is suitable for enclosures from 0.2 to 2m³, but larger spaces can be accommodated with more than one element   Find out...

New enclosed Rosahl products

To simplify the installation of Rosahl membranes the new Separates Range comprises three sizes of Rosahl membranes installed in steel enclosures ready for mounting in your equipment.  A separate humidistat is also available.  The Separates Range does not include an ac power supply which should be purchased locally in conformance to local regulations. Rosahl Separates Range Model S-5T1 S-7T1 S-10T1 Dehumidification capacity (g/day) 8 16 29 Applicable volume m³ <1 <2 1-4 Device voltage 3V dc 3V dc 3V dc Power consumption(W) annual average 3 4 8 Dimensions (mm) 110x130x30 138x150x30...

New solid state dehumidifier for small cabinets

Rosahl is a unique solid state dehumidifier with a host of advantages over conventional drying cabinet systems.  Rosahl uses a small electrical charge across a solid polymer membrane to break down moisture and expel it from the enclosure.  It is compact, has no moving parts, is silent in operation,  requires no maintenance, draining or recycling and has a long service life.   The RDH-3P2 is a lightweight moulded version of Rosahl that combines the solid state dehumidifier element and a power supply suitable for 220/240 V applications: it is CE marked and RoHS compliant.  A stand alone...

Twin attack on moisture build-up

In a feature originally published by innovative design magazine Eureka, Tom Shelley considered two non-competing technologies use a small amount of electricity to remove moisture continuously from inside a closed volume…… “A family of Japanese solid-state devices removes moisture from inside enclosures electrolytically, while a rather larger British-made device continuously eliminates moisture from power transformers and tanks of chemical by utilising absorbent, a heater and natural changes in atmospheric pressure. Both devices are ‘fit and forget’. However, while the...

New screw-in micro dehumidifier

Designed for simpler, faster installation, the new thumb sized dehumidifier from ROSAHL fits inside an M12 (M12 P0.5) screw fitting and is suitable for enclosures up to 2 litres (122cu in). The RP3 is powered from a 3V dc source, and this solid state dehumidifier is silent in operation, drain free, maintenance free, low powered and has a long service life.

Precise control of humidity.

A ROSAHL dehumidifier removes moisture from an enclosed cabinet through electrolysis when a 3V dc supply is connected.  By fitting a second element and a simple circuit controlled by a humidistat, the same process will also humidify the cabinet and help maintain humidity within set ranges.

ROSAHL thumbnail size dehumidifiers

When we say the thumbnail sized ROSAHL ionic membrane is the world’s smallest dehumidifier we really mean it’s the world’s smallest electrical low-powered; maintenance free; long-life; vibration-free dehumidifier. The mounting measures 24 x 30 x 5.5 mm (including terminals), but the dehumidifying element is only 6mm in diameter.  From a 3V d.c. supply it uses electrolysis to provide a dehumidifying capacity up to 84mg per day from enclosures up to 2 litres....

Micro dehumidifier with macro advantages

The ROSAHL solid state dehumidifier uses an advanced polymer membrane to remove moisture from industrial and commercial enclosures.  Originally designed to protect sensitive electrical and electronic equipment in remote or difficult to service outdoor locations, the membranes are economical to run, maintenance free, and have a long service life.  They are also silent in operation, making them suitable for museum displays and other indoor applications. The smallest in the family of membranes measures 24 x 30 x 5.5mm and is suitable for enclosures up to 0.2 m³ (7 cu. ft.).  It has a very small...

Ionic membrane dehumidifier. Wikipedia says….

The Wikipedia Free Encyclopedia website has a section on dehumidifiers and describes various techniques for reducing humidity.  The ROSAHL dehumidifiers use the technique referred to in the section ionic membrane dehumidifier Ionic membranes are used in many industrial areas such as fuel cell technology, chemical engineering, and for water improvement. A specialized type of membrane can be used as an “ionic pump” to move humidity into or out of a sealed enclosure, operating at a molecular level without involving visible liquid water. The solid polymer electrolyte (SPE) membrane...

Solid-state dehumidifier brings energy saving to air drying.

Through the use of an ionic membrane the ROSAHL line of dehumidifiers offers a number of benefits over traditional methods of air drying for applications such as electrical cabinets, antiquity displays and equipment storage cabinets.  Originally developed to prevent moisture damage to remote equipment such as CCTV cameras and traffic signs it has found a place in a variety of applications. Low life-time cost is one of the main benefits of using the technology that uses electrolysis to remove water vapour from the air.  Typically, a device for air drying an enclosure of up to 1m³ (35 cu. ft)...

Removing water vapour and avoiding condensation damage in electrical cabinets

Found water in the bottom of your electrical cabinet or traces of rust and corrosion on terminals and devices? Your first thought maybe to check for a water leak, but condensation may well be the cause.  Even small amounts of water can reduce the performance life of equipment and cause extensive and expensive damage.  Even without the presence of water, water vapour can cause rusting/oxidation on exposed surfaces leading to increased resistance of joints, local heating and even short circuits. The air’s capacity to hold water vapour increases as air temperature increases.  For example,...

Protecting external electrical equipment from humidity damage and failure

In an article on contamination and moisture effects on printed circuit board reliability, ERA Technology* identified moisture; applied voltage, and ionic contamination as leading causes of failure. According to the article: “Printed circuit boards (pcbs) can suffer from a variety of problems if the surface is contaminated with electrically conducting materials. Combined with moisture, this results in a lowering of resistance between tracks and pads and can lead to corrosion of metals. It can also result in the formation of metal filaments, which grow between pads or tracks on rigid or...

Economical air drying for small enclosures

ROSAHL small cabinet dehumidifiers offer 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...