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 registered and stored in the logger as standard ASCII text files. Optional a synchronous registration of temperature and humidity is possible. Several temperature channels and a mixed temperature /humidity channel are available.You may also connect a balance (option).
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 recommend Microsoft Excel ® ore any similar visualization program.
No special PC software is necessary. You need only your browser-software like Firefox ore Internet-Explorer.
|Specimen Length||1000 mm (standard), 500 mm or 250 mm (option)|
|Specimen Diameter||60 * 40 mm (mortar) or 100 * 60 mm (concrete)|
|Measurement Range||5 mm|
|Typical Accuracy :||Better then ±2 µm|
|Temperature Control (option)||Double wall floor and walls with aluminum core and copper tubes can be connected to a chiller for temperature control|
|Temperature Measurement (option)||Thermocouple type K for embedding into the specimen|
|Temperature- and Moisture Measurment (option)||Temperature and humidity sensor for measuring the environmental conditions. Stainless steel housing.|
Also available :
double wall drain for cooling and heating (see picture below)
different lengths like 250mm and 500mm
different diameters like 60 * 100 mm (for concrete)
Se below the double wall version:
|Drain for Mortar 60 x 40 x 100 mm with LVDT displacement sensor||S0103|
|Drain for Mortar 60 x 40 x 1000 mm w/o LVDT||S0102|
|Drain for Mortar60 x 40 x 250 mm with LVDT||S01044|
|Drain for Mortar 60 x 40 x 500 mm with LVDT||S0104|
|Cellular Rubber for the Mortar Drain||S0008|
|Drain for Concrete 100 x 60 x 1000 mm with LVDT||S0033|
|Drain for Concrete 100 x 60 x 1000 mm w/o LVDT||S0034|
|Drain for Concrete 100 x 60 x 500 mm with LVDT||S0036|
|Cellular Rubber Sheet for Concrete||S0014|
|Anchor for the Mortar and Concrete Drains||S0020|
|Double Wall Temperature Control Option||S0035|
|Data Logger for up to 10 Drains||S0001|
|Data Logger Input Thermocouple Type K, incl. Sensor||S0027|
|Data Logger Input Temperature/Humidity Sensor,
incl. combinded Sensor