With maximum linearity error of ± 0.1 percent of full-scale output, Macro Sensors’ GHSE/GHSER 750 Series 24V spring-loaded position sensors are available in ranges of 0.1" (2.5 mm) to 4" (100 mm). Used for position measurement in gaging applications, each unit consists of a spring-loaded sleeve bearing that provides repeatability of 0.000025" (0.6 micronmeters). Along with a 1/2-20 threaded front end, the spring-loaded assembly eases setup on automated machinery, the company says. Electrical termination of the GHSE 750 model is made through a sealed axial connector, while electrical termination for the GHSER 750 is through a radially mounted, sealed connector.
The probe shaft is extended with a spring that exerts a nominal force ranging from 6 to 20 oz., depending on total range. The probe shaft fully extends when pressurized by air, and it retracts to get out of the way during loading/unloading operations or to provide clearance for products on an assembly line. The sensors’ output is designed to operate with most PLCs, digital indicators and data-acquisition systems. According to the company, the hermetically sealed gaging probes can withstand the effects of dirt, water, steam and other corrosive elements without affecting performance.
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