Hermetically Sealed

HI-750 Series 4-20 mA LVDT

The NewTek HI Series sensors are rugged hermetically sealed 4-20 mA LVDTs with excellent linearity, high resolution, and superior repeatability.  These sensors are constructed of ¾ inch diameter stainless steel and manufactured for general industrial use.  Electrical connection is made through an axial mounted connector.  Designed for a wide range of position measurement applications, they are available in ranges of 0.1 inches (2.54mm) to 20 inches (500mm).  In addition to being sealed to IP-68, the HI Series windings are potted inside the housing with a 2 component epoxy, providing excellent protection against hostile environments.

Input Voltage:                                       11 – 28 VDC (24 VDC nom.)
Linearity:                                               < ± 0.25% Full Range Max (0.1% Optional)
Hysteresis:                                           <0.01% of Full Range Typical
Repeatability:                                       <0.01% of Full Range Typical

Operating Temperature:        -15° F to 185° F (-25° C to 85° C)
Thermal Coefficient:              <-0.01%/◦F (< -0.02%/◦C) of Full Range
Humidity:                                    90% R.H., 240 Hours
Shock Survival:                          100 g, 11 ms
Vibration:                                   20 g to 2 KHz

Housing:            Corrosion-resistant nickel-iron alloy
Core:                  Hi-permeability nickel-iron alloy
Magnet Wire:    Film insulated copper
Connector:        PT02A-10- 6P


  • IP-68 welded 3/4 inch hermetically sealed steel housing
  • Measurement ranges from  0.10 to 20 inches
  • Linearity ±0.25% of Full Range Max (±0.1% Optional)
  • Shock and vibration tolerant
  • Wide operating temperature range (-15◦F to 185◦F)
  • Standard and custom models available
  • “Plug & Play” 4-20 mA compatible with most PLCs and controllers


  • Factory Automation
  • Materials Testing
  • Packaging Equipment
  • Valve Position Sensing
  • Corrosive Environments
  • Long Cable Runs


Dimensions & Wiring



NewTek products are warrantied against defective materials and workmanship for a period of one (1) year from the date of delivery to the original purchaser. NewTek accepts no liability for damages in the misuse of our products.

Contact NewTek Sensors to discuss your requirements