The SAA232-5 interface unit delivers the same functionality as the SAA232 but increases the number of ShapeArrays that can be linked into a serial COM port from one to five. This allows a data logger to collect and store information from multiple ShapeArrays (10 ShapeArrays into CR800 or 20 ShapeArrays into one CR1000 logger).
The SAA232-5 interface unit is designed to get the most out of your investment in ShapeArray instrumentation. Interface units control communications between the ShapeArray and the data logger, as well as power. Unlike traditional geotechnical instruments that use only a few sensors, ShapeArrays often have hundreds of sensors in one instrument that require electricity. ShapeArray’s unique power requirements determine tight regulation to ensure optimum function. A 12V battery system can produce a range of fluctuating voltage—10.5V to 15V—depending on their condition. SAA232-5 contains a high-quality DC-to-DC converter that boosts and regulates the voltage supplied by 12V battery systems to a constant 13.5V. The SAA232-5 unit also extends the length of cable that can be run between the ShapeArray and its data logger, providing a 16.5V boost for longer cables. SAA232-5 also protects against electrical surges and voltage strikes.
There are two versions of the SAA232-5 interface: the SAA232-5, and the SAA232. The SAA232-5 can be used to connect up to 5 ShapeArrays to a single COM port, while the SAA232 is used to connect a single ShapeArray to a single COM port on a Data Logger.