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The GC-485 eliminates the need for expensive and error-prone analog to digital conversion by internally converting the analog LVDT signals into engineering units (imperial or metric).  The result is a fully calibrated and traceable measurement device, ready for installation, and 100% field interchangeable. Operating on 8.5 to 30VDC supply, the GC-485 provides an addressable RS-485 loop output (MODBus RTU and ASCII protocols) running at 119kBd baud rate and capable of handling up to 32 devices communicating over two wires. MIN, MAX and TIR readings are sampled and stored internally at a maximum update rate of 600 samples per second, and are provided to the host on demand. A velocity output (inch or mm per second) is also available, while an internal tare (zero) function affords maximum measurement range flexibility. These robust gage heads feature a removable black-chromed, hardened tool steel tip threaded (4-48UNF-2A) to the working end. Internal construction prevents the core and shaft from rotating as they move longitudinally. The welded electrical connector allows replacement of a damaged cable without sacrificing the sensor. The external ½-20 threads and the two supplied locknuts facilitate installation and adjustment. 


  • All-welded stainless steel construction
  • MS type connector (MIL-C-5015)
  • Hardened tool steel contact tip
  • High side load resistance
  • Programmable filtering
  • Calibration certificate supplied with each unit
  • Air extend/spring retract available (consult factory) 

Please review product documents or contact us for the latest agency approval information.  

Electrical Characteristics

  • Supply Voltage (V) 8.5 – 30

  • Digital Output  RS-485

Body Features

  • Form Factor  Cylindrical

  • Spring Loaded  Spring Loaded

Termination Features

  • Electrical Connections  PT02A-10-6P

Housing Features

  • Housing Material  Stainless Steel

  • Housing Diameter 19.05 mm [ .75 in ]


  • Full Stroke Ranges (mm) ±12.7, ±25.4, ±3.17, ±6.35

  • Full Stroke Ranges (in) ±.125, ±.25, ±.5, ±1

Usage Conditions

  • Operating Temperature -25 – 85 °C [ -13 – 185 °F ]

  • IP Rating  68

  • Environmental Specifications  1,000 PSI Pressure


  • Linearity (% of Span) ±.1

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