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Munters trae la Edad de Bronce al Museo de Orford

El Museo de Orford posee la acredictación MLA que recopila y muestra material histórico hallado en Orford y en la zona circundante de Suffolk. El museo está localizado en el interior del Castillo de Orford, punto de referencia histórico, que fue construído en el siglo XII por Enrique II y es propiedad del English Heritage.

The museum has been situated inside Orford Castle, a historic local landmark that was built in the 12th century by King Henry II and is owned and maintained by English Heritage. Inside the museum, display cabinets house material relating to The Castle, The Borough, Archaeology – Prehistory to 1550, River, Land & Sea and The Bronze Age, in addition to other small finds displays. As a building, Orford Castle affords the museum and its visitors a visually attractive home that is steeped in history. However, it is stone-built and unheated so provides very little protection against environmental damage for the exhibits. “Due to its age and the way it was built” says Jennifer Hall, Orford Museum Curator “a significant volume of moisture is absorbed by the building, especially in the winter when the cold temperatures cause condensation to build.”
Without protection, the exhibits are exposed to potential moisture-related damage. This issue was no more apparent than when Orford Museum bid to bring a locally-found Bronze Age hoard from Ipswich Museum to Orford.


Como edificio, el Castillo de Orford concede al museo y a sus visitantes un lugar, visualmente, atractivo y sumergido en la historia. La construcción de este edificio es de piedra y no tiene calefacción de manera que ofrece muy poca protección contra los daños medioambientales. “Debido a su antiguedad y a la forma en la que se construyó” dice Jennifer Hall, conservadora del Orford Museum “el edificio absorbe una cantidad importante de humedad, sobre todo en el invierno cuando las temperaturas frías provocan la acumulación de condensación.”


Thanks to Munters, Orford Museum was able to reassure Colchester and Ipswich Museum Service that relative humidity levels would be consistently maintained below 50% RH, therefore securing a long term loan of The Bronze Age exhibits.

At first, Orford Museum purchased one MG50 desiccant dehumidifier for Case 3, The Archaeology collection. The MG50 desiccant dehumidifier is a compact, lightweight unit that is well suited for smaller spaces. At the heart of the dehumidifier lies Munters desiccant rotor (wheel), a simple yet genius principle designed by Carl Munters more than 60 years ago. Two air streams pass simultaneously through the slowly rotating rotor that is treated with a highly effective desiccant. One air stream is dehumidified to provide the necessary dry air, the other dries the rotor, exhausting the accumulated moisture externally.

With the MG50 having proved beneficial to the artefacts in Case 3, Orford Museum raised funds over the past few years in order to purchase a further four MG50 dehumidifiers resulting in all five of the upright cases being monitored, protecting and conserving the collections in the museum. The museum is now supplying dry air to protect artefacts including leather money bags, metal badges, coins and even a medieval metal cross bow. Like metal items, the condition and life of items such as paper, photographs and leather is significantly increased by preventing moisture damage such as mould and fungal growth. Inside each display case, Munters humidistats constantly monitor conditions, automatically turning the dehumidifiers on and off as needed. This ensures humidity levels are maintained consistently day and night all year round, while also maximising energy efficiency.

In addition to achieving consistent climate conditions, aesthetics was an important consideration for the Museum. Minimising any impact on the museum and visitor experience was essential, and there could be no impact on Orford Castle itself as it is protected and owned by English Heritage. One of the benefits of the MG50 dehumidifier is that it does not need to be fitted on a wall, it is easy to move around and is small enough that it does not obstruct the view of the display cases for visitors. Each MG50 dehumidifier has been placed inside a specially designed small metal box next to each display case and supplies dry air through minimal pipe work.

As part of the conditions for the loan of The Bronze Age exhibits, Orford Museum are to ensure that the display case is opened very rarely, and regular reports on climate conditions are to be supplied to the Curatorial Advisor at Colchester and Ipswich Museum Service. To achieve this, the humidistats that are fitted inside each case are made clearly visible to the Curator in order to ease the process of taking humidity readings and prevent unnecessarily opening the cases.

Datos básicos

  • Preventing humidity damage such as corrosion and mould
  • Ensuring consistent year round climate conditions
  • Providing precise & accurate control
  • Compact & lightweight, easy to install and move

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