Macro Sensors: LVDT-position transmitters operate in hostile environments

Targeting position-monitoring and feedback applications, the hermetically sealed HIS/R 750 loop-powered LVDT (linear-variable-displacement transducers)-position transmitter series functions in hostile environments and suits mechanical-position measurement in which you can make a hard connection to a test piece. The devices’ 4- to 20-mA-current-loop I/O enable field integration with PLCs (programmable-logic controllers), digital indicators, host-computer-based data processing, and QC (quantum-cryptography) data-collection systems. Configurable for loop-powered, two-wire sourcing inputs or externally powered, three-wire sourcing outputs, the devices suit I/O requirements in various applications. Features include ±0.10% linearity for precision measurement and 0.25% maximum-linearity error of the full-range output using a statistically best-fit straight line derived by the least-squares method. The HIS/R position transmitters measure 2.5 to 500 mm with a 19-mm diameter and $591 to $900, depending on options.

Macro Sensors, www.macrosensors.com