We measure it.

TESTOsolutions

The measurement data monitoring

The cuttings and microcuttings from in-vitro cultures in thegreenhouses of the Nordwestdeutsche ForstlicheVersuchsanstalt* (NW-FVA) require tailor-made climaticconditions in order to be able to develop optimally. Theprerequisites for fast growth and excellent quality areconstant temperatures between 25 and 40 degreescentigrade, and an air humidity close to 100 percent (highhumidity). testo 6681 humidity transmitters and testo 6614high-humidity probes monitor the temperature andhumidity values in the greenhouses accurately and reliably.The transmitters simultaneously control the high-pressuremist systems which ensure the necessary humidificationof the plants. If upper or lower pre-set temperature andhumidity values are exceeded, the measurement datamonitoring system testo Saveris alarms the personresponsible for the process by SMS and e-mail. Daily andweekly reports, also created automatically by Saveris,

provide the scientists at the foresty institute with anoverview of the development of all important parameters.

TThhee bbeenneeffiittss aatt aa ggllaannccee:: • Uninterrupted, centralised monitoring of temperature and humidity values

• Use of robust, highly accurate humidity transmittersunder high-humidity conditions

• Precise control of high-pressure mist systems in thegreenhouses

• Fast alarms by SMS and e-mail when limit values areexceeded

• Automated reporting: Daily, weekly and monthlyreports in PDF format

• Display of the current measurement data on a PC• User-friendly transmitters and measurement datamonitoring systems

We measure it.

TESTOsolutions

system testo Saveris in greenhouses Climate control and measurement data monitoring in the greenhouses of the North West German Forestry Research Institute*

Photograph: Testo AG

*North West German Forestry Research Institute

We measure it.

Testo LimitedNewman Lane, Alton, Hampshire, GU34 2UREmail: saveris@testo.co.uk www.testolimited.com

The Nordwestdeutsche Forstliche Versuchsanstalt*needed measuring instruments in order to be ableto monitor the temperature and humidity in itsgreenhouses precisely and reliably, despite thetough high-humidity conditions. An additionalchallenge was to provide the senstitive, in-vitro-grown forestry plants and cuttings optimally withwater, depending on their development stage. Forthis purpose, the high-pressure mist systemsneeded to be switched on and off automaticallydepending on the respective required humiditylimit values. Other requirements of the NW-FVAwere fast alarms when upper or lower humiditylimit values were exceeded, as well as up-to-dateinformation provided to the scientists thanks toregularly created reports.

Seven testo 6681 humidity transmitters with testo 6614 high-humidity probes monitortemperature and air humidity in the NW-FVA* greenhouses. The high-pressure mistsystems are controlled, and switched on and off according to the pre-set humidity limitvalues, via relay outputs. The transmitters are connected to the company network and

the measurement data monitoring system testoSaveris via Ethernet. Saveris compiles themeasurement data into tabular and graphic dailyand weekly reports, and alarms those responsiblefor the process via SMS and e-mail when limitvalues are exceeded. In addition to this, the dataare visible via intranet. Saveris wireless probesrecord among other things the temperature andhumidity values outside the greenhouses.

Whether poplar, willow, wild cherry, birch or aspen – cultivating fast-growth, especially high-per-formance forestry plants is no longer a problem at the NW-FVA, even under high-humidity condi-tions. Simultaneously to the mon-itoring of the ambient conditions, the high-pressure mist systems are fully automatically controlled by the transmitters, and the sen-sitive experimental plants opti-mally provided with water. Risks which arise from the cultivation of costly cuttings from different areas of Europe are thus minimised. Clearly designed measurement re-ports ensure transparency. They

allow the scientists efficient tracing as well as quick and thorough analysis of causes of

error.

The task

Die Nordwestdeutsche ForstlicheVersuchsanstalt (NW-FVA) is ajoint research facility of the statesof Hesse, Lower Saxony, Saxony-Anhalt and Schleswig-Holstein.The NW-FVA conducts practicalforestry research and advises for-est owners and forestry businessoperators, administrators and pol-

itics. The central mandates are thelong-term observation and moni-toring of forests, applied reasearchas well as knowledge transfer. TheGöttingen and Hann. Mündensites employ 129 permanent staff.Under the brand names silvaSE-LECT® und nwplus®, the depart-ment of forestry genetic resources

in Hann. Münden supplies, amongother things, high-quality plant-ings for poplar, willow, wild cherry,birch and aspen.

The customer

The solution

Benefits for the customer

The measurement data monitoring system testo Saveris in greenhouses

testo 6681 humidity transmitters regulate and monitor theair humidity in the greenhouses.

Grounds of the department offorestry genetic resources of theNW-FVA with greenhouse facility.

Cultivation under high-humidity conditions: The in-vitro-grown plants must first become acclimatised to the soil and the conditions outside the sterile laboratory conditions.

Photograph: NW-FVA

Images: NW-FVA

We measure it.

Photograph: NW-FVA

*North West German Forestry Research Institute

*North West German Forestry Research Institute

*