Position sensors feature simple teach mode for span and zero
15 March 2015
Ixthus Instrumentation’s new VLPSC series linear position sensors provide precise displacement measurement with teach-mode calibration for zero and span in addition to autosensing 0-10Vdc or 4-20mA outputs.
With a choice of nine electrical travel ranges from 25 to 290mm, these robust and competitively priced sensors combine tried and tested conductive plastic element technology and integrated signal conditioning electronics to offer a 12-bit resolution, linearity to 0.1 percent and high positional repeatability.
Available for displacement referencing as single components or as part of comprehensive test and measurement system solutions from Ixthus, the rod-style VLPSC series combines the benefits of convenient installation via self-aligning spherical bearing mounts and a compact design that keeps overall length to measured length ratio to a minimum.
The 15mm square aluminium housing and improved felt and O-ring shaft seal arrangement provides IP65 protection with IP67 on request. The well proven design features a patented multi-fingered precious metal wiper arrangement that ensures smooth and uninterrupted contact with low electrical noise and high resilience to shock and vibration.
The high reliability sensor has a rated service life in excess of 25 million operations, an operating temperature rating of -40 to +90ºC and 5 - 95 percent humidity tolerance.
The simple teach function procedure allows referencing the start and end positions for the sensor without the need for a PC connection, using a visual signal from an on-board red/green LED and a single input pushbutton.
The VLPSC provides a sampling rate of 4kHz and a refresh rate of 1kHz for fast position update. Supply voltage is 12 to 24Vdc and sensor is delivered with 1m leads as standard and with optional 3m cabling.
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