Macro Sensors offers a metric version of its 24V DC-LVDT position sensors. Constructed entirely of stainless steel, the HSE/HSER 750 Series of 19.0 mm diameter DC-operated LVDTs is hermetically sealed, making them impervious to dirt, water, steam and other corrosive elements. These CE-approved and rugged units are suitable for use in hydraulic cylinder positioning, valve position sensing, automatic assembly equipment and other industrial applications with hostile conditions and corrosive environments. The sensor’s coil windings are sealed against hostile environments to IEC standard IP-68. The housing, bore liner and end washers are TIG welded, providing a hermetic seal free from oxidation-producing faults that may cause leakage. A single-ended LVDT, the HSE Series 750 units terminate through a sealed axial connector that prohibits the core from passing completely through the coil assembly. Electrical termination, however, is made through a sealed radial connector located near one end. The radial connector offers a through-bore design that permits access to either ends of the LVDT’s core for better mechanical support and core guidance, and easier cleanout. Incorporating built-in electronics, both HSE/HSER 750 Series position sensors include characteristics of an AC-LVDT, such as frictionless operation and dynamic response, with DC input and pre-calibrated DC output. Units offer a 0-10V DC output for easy integration with PLCs, digital indicators, A/D converters, computer-based data processors and QC data collection systems. Available in ranges of 2.5 mm to 500 mm, the HSE/HSER 750 Series LVDT position sensor feature high resolution, desirable repeatability (repeatability error <±0.01% of FSO), and low hysteresis (hysteresis error <±0.01% of FSO). Standard maximum linearity error for any of these DC-operated sensors is <0.25% of full-scale output using a statistically best-fit straight line derived by the least squares method.
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