DATA ACQUISITION FEATURE measures, motivate colleagues.”
In an exhibition area that extends to 900 square meters and features 300 exhibits, the Foundation for Prussian Castles and Gardens (SPSG) is turning the spotlight on women
CONSERVATION CONDITIONS
In addition to being beneficial for industrial applications, wireless
data logging instrumentation from Rotronic can be used to monitor
the climate in rooms such as those housing museum exhibits
I
n 1415, the Hohenzollern family came to Brandenburg, and for over 500 years twelve Prince-electors, seven Kings and three Emperors helped make history. Now, however, in an exhibition area that extends to 900 square meters and features 300 exhibits, the Foundation for Prussian Castles and Gardens (SPSG) is turning the spotlight on the women at their side. Features will include a dress dating from around 1460 and the coronation cloak of Queen Augusta.
Climate and lighting can cause damage to museum exhibits. So, in recent decades the exhibition sector has developed a standard for conservation
conditions in exhibitions
MEASUREMENT SOLUTIONS The measurement system selected needed to offer long-term stability, precision and reproducibility – and the HydroClip2 probe from Rotronic met the demands. A further benefit of the instrument was the ability to be able to measure right at the work of art. It also offered flexibility, low maintenance, simple operation and data security. As an example, the measurement of in the room air is not a conservation
CO2
requirement, because it has no potential to damage the works of art. However, the CO2
content in the exhibition rooms
is an important criterion for air quality and hygiene, and thus for the comfort of the visitors and the working conditions of the custodians. Eckermann commented: “The rooms
are ventilated individually, a general assessment of the air quality and exchange with outside air being made via the CO2
content. However, only the
building shell, with masonry walls some 80cm thick; solid, reinforced concrete ceilings and floors; and composite windows with double glazing. To reduce warming through sunlight, the windows on the south side have been given temporary external sunshades for the duration of the exhibition. However, until now the SPSG had no
“To reliably monitor the climatic conditions, Rotronic’s LOG-HC2-RC wireless data loggers are used. With these, the measured values are recorded locally and are safe from manipulation”
Climate and lighting can, however, cause damage to museum exhibits. So, in recent decades the exhibition sector has developed a standard for conservation conditions in exhibitions. In those with the most varied works of art, temperatures should be 18–22˚C and relative humidity around 50% with slight variations, and lighting of 50 to 200 Lux, depending on the sensitivity of the materials. The SPSG therefore has a department for ‘Preventive Conservation’.
THE NEED FOR MEASUREMENTS The theatre in Charlottenburg has no central air-conditioning system. The room climate is influenced by the massive
experience with using the building as an exhibition area. This placed very high demands on the quality and availability of measurement data – all decisions on the control of mobile air conditioning equipment and ventilation are made on the basis of measurements in the individual rooms. Mr. Wulf Eckermann, head of the
Right: Rotronic’s data
loggers are suitable for a range of humidity and temperature monitoring tasks
Preventive Conservation department, commented: “We observe measurement curves and developments over days, months, years… We have no fixed processes and tolerances, as they do in industry. We want to understand situations, become familiar with buildings, assess influencing parameters, optimise
slightest variations in the climatic values are permitted.” To reliably monitor the climatic conditions, Rotronic’s LOG-HC2-RC wireless data loggers are used. With these, the measured values are recorded locally and are safe from manipulation in a memory with a capacity of 500,000 values. With no cabling requirement, and without provision of an infrastructure such as a LAN or power outlets, the loggers are mounted unobtrusively on walls and in glass cases.
DATA LOGGING The Rotronic wireless data loggers are suitable for a wide range of humidity and temperature monitoring tasks. These offer wireless transmission over distances up to 100m and the data can be easily collected and recorded from inaccessible points. In addition, up to 100 devices can be configured and read out via the HW4 software. As a result, the data
loggers are suitable for a wide range of applications – including in the meteorology and food industry, in building technology and museums, and in environmental/ laboratory equipment and R&D.
Rotronic
www.rotronic.co.uk
INSTRUMENTATION | NOVEMBER 2016 23
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