Shrinkage Drain – Cement and Concrete shrinkage and expansion tester
The Shrinkage Drain is made of a 1m long u-shaped stainless steel profile which contains the specimen.. To avoid wall friction the drain is covered with a removable Neopren® sheet. On one side a removable anchor is fixed. On the other side this anchor is movable and sliding on three wheels. The motion of this anchor is registered by a high sensitive digital probe.
As displacement sensor we are using a digital probe which is connected to the Probe Interface Electronics which converts the analogue signals from the probe head into a digital format.
Up to 10 probes may be connected over a digital bus system. The distance between the probes and the Datalogger may be several hundreds of meters. A data-logger supplied with the system the data of several shrinkage drains are registerd and stored in the logger as standard ASCII files. Optional a synchronous registration of temperature and humidity is possible. Two temparature channnels and a mixed temperature /humidity channel are available.
The logger has a network interface (Ethernet) So you can easily integrate it into local Intranet. With a standard web-browser software you can readout the data, and visualize it. For further data handling we recomend Microsoft Excel® ore any similar visualisation program.
No special PC software is necessary. You need only your browser-software like Firefox or Internet Explorer
60 * 38 (mortar)
Accuracy better than:
double wall drain for cooling and heating (see picture to the right)