Precise extensometric measurements

B&R’s X20 line of I/Os is expanded with 2 new analog input modules that can be used to digitalize extensometer signals.

The X20AIA744 module has two strain gauge full-bridge inputs, while the X20AIB744 features 4 extensometer measurement channels, also in the same characteristic thinness of the single channel X20. This makes it possible to reduce costs and, at the same time, save space in the electrical cabinet.

The X20AIA744 and X20AIB744 modules operate with 4-wire extensometric load cells. Compensation in the measurement system eliminates absolute uncertainty in the measurement circuit, for example component tolerances, effective bridge voltage and zero offset. The converter resolution of every module is 24 bits.