R-750 Series

The NewTek R Series AC LVDTs satisfy numerous applications in which LVDT performance and reliability are required. These linear displacement sensors are available in ranges of ±0.50 inch (±1.27mm) to ±10 inches. Sensor construction consists of a coil assembly potted and mechanically swaged into a 3/4 inch (19mm) diameter housing with a separate moving core. The ¼ inch (6.35mm) diameter core allows a radial clearance of 1/16 inch (1.58mm) between the movable core and the bore of the coil assembly. The large core-to- bore radial clearance provides for ample installation misalignments. The R Series can be designed with a number of standard options including mild radiation resistance, Teflon bore, metric threaded core and high temperature (400°F).

Input Voltage:                                       3 Vrms (Nominal)
Input Frequency:                                  400Hz to 10KHz
Linearity:                                               < ± 0.15% Full Range Typical
Extended Operating Range:               1.5 X Linear Range
Null Voltage:                                         0.5% Full Range
Hysteresis:                                           <0.01% of Full Range Typical
Repeatability:                                       <0.01% of Full Range Typical

Operating Temperature:        -65° F to 275° F (-55° C to 135° C)
Thermal Coefficient:              <-0.01%/◦F (< -0.02%/◦C) of Full Range
Humidity:                                    90% R.H., 240 Hours
Shock Survival:                          1000 g, 11 ms
Vibration:                                   20 g to 2 KHz

Housing:            Corrosion-resistant nickel-iron alloy
Core:                  Hi-permeability nickel-iron alloy
Coil Form:          Ceramic/Plastic
Magnet Wire:    Film insulated copper
Lead Wires:       #28 AWG Teflon insulated, 12&quot; long


  • Rugged 3/4 inch stainless steel housing
  • Measurement ranges from ± 0.05 to ± 10 inches
  • Linearity ±0.15% of Full Range Typical
  • Shock and vibration tolerant
  • Wide operating temperature range (-65◦F to 275◦F)
  • Choice of imperial or metric threaded core
  • Standard and custom models available


  • Factory Automation
  • Food process control
  • Materials testing
  • Fluid level measurement


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