The HSIR 750 Series of 3/4 inch diameter, loop powered 4-20 mA LVDT position transmitters is designed for a wide range of position monitoring and feedback applications. These rugged, hermetically sealed sensors are constructed entirely of stainless steel, and intended for general industrial use. The coil windings are sealed against hostile environments to IEC standard IP-68 and input/output connections are made through a sealed radial connector located near one end. A mating connector plug is supplied with each unit.
The radial connector offers two important benefits. First, it results in a through-bore design, which permits access to either or both ends of the LVDT’s core for better mechanical support and core guidance, and easier cleanout in dusty or dirty locations. The second advantage of the radial connector is shorter installed length compared to units of the same range with axial connectors.
HSIR 750 Series transmitters offer the frictionless operation, high resolution, excellent repeatability, and low hysteresis associated with LVDT technology, along with the convenience and simplicity of a precalibrated 4-20 mA current loop operation. Units operate as either 2-wire loop-powered or 3-wire sourcing externally powered. The built-in electronics operate over a wide range of loop supply voltages and resistances, and are designed to operate with many PLCs, digital indicators, A/D converters, computer-based data processors, and QC data collection systems.
Available in ranges of 1 inch (25 mm) to 10 inches (250 mm), the maximum linearity error for an HSIR 750 Series sensor is ±0.25% of full range output using a statistically best-fit straight line derived by the least squares method. A version with </= ±0.10% linearity error is also available.
Standard measurement ranges of 1 inch to 10 inches
4 to 20 mA input/output
Non-linearity ±0.25% of FRO or better
Hermetically sealed for harsh environments
Radial connector, mating plug included
Machine tool positioners
Materials testing extensometers
Hydraulic cylinder position
Valve position sensing
Automatic assembly equipment