Museums, Archives and Libraries

Wasa Ship

Museums, archives, and libraries contain valuable objects that are necessarily exposed to environmental conditions, whether the environment is a gallery or an exhibit case. The impact of relative humidity in the environment is roughly one order of magnitude greater than the impact of temperature. Even if relative humidity control is not available from an HVAC system, it can still be useful to have a long term record of environmental conditions. 

Vaisala HUMICAP® relative humidity sensors have a low drift rate, making them ideal for long term measurements. Careful factory calibration of Vaisala RH measuring devices provides high measurement accuracy. This combination of attributes delivers reliable functionality and a high level of data integrity. A broad family of high performance HVAC products can be used as components in a building automation system, providing any combination of relative humidity, temperature, and COmeasurements.

The Vaisala Continuous Monitoring System (CMS) is independent from the HVAC system. It is a complete solution for measuring, monitoring, and documenting environmental conditions. Measurement devices can be fully wireless, making it easy to move them around when exhibits change, or when sensors are installed in free standing exhibit cases. 

Even when humidity control is provided by an HVAC system, the CMS is a valuable tool for monitoring conditions at precise locations. For example, close to the objects of interest, or as tool to map conditions in a large space. The CMS is well proven even in the most challenging environments. 

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