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75PCAC & 75PCDC Series

Pressure Sealed AC & DC Operated LVDT’s

Sentech is offering the 75 PC series pressure sealed LVDT’s for use in harsh, dirty environments, such as those found in heavy industrial plants and processes. With housings constructed of stainless steel, the 75PC series units can sustain pressure of up to 1000 psi and, when properly equipped, can even operate fully immersed in liquids and fluids.

The 75PC series of LVDT’s are available in both AC and DC-operated versions in measurement ranges of ±0.050” (±1.27mm) to ±10.000” (±254mm).

The 75PCAC series, AC-operated units can be used in high temperature, high shock, and vibration environments and in mill duty applications where the signal conditioner is located away from the hostile environment.

Requiring only ±15 VDC to operate, the 75PCDC series, DC units can be used where temperatures are moderate and are ideally suited for direct connection to PLC’s and other monitoring and control devices. They utilize integral, miniature, monolithic electronics to accomplish all required signal conditioning functions and give low noise outputs of ±10 VDC.

Electrical connections are made using a 6 pin, bayonet type, hermetically sealed connector mounted to the LVDT housing. The mating cable connector including strain relief is supplied with each unit at no charge. The removable mating connector permits easy repair or replacement of the cable leading to the unit, should it be damaged in service.

Features & Benefits

  • Rugged all stainless steel construction
  • Perfect for harsh environments
  • AC and DC-operated units
  • AC units can operate to 300°F (150°C)
  • DC models operate directly with PLC’s
  • Calibration traceable to NIST
  • Mating connector included


  • Steel and aluminum mills
  • Robotics
  • Industrial Process Control
  • Bridge and pavement deflection studies
  • Aircraft control surface calibration
  • Welder electrode positioning
  • Building material measurements
  • Automated assembly equipment
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Sentech designs and manufactures with ISO 9001:2015, AS9100 Rev D certified quality management system. ANAB accredited.
Most Sentech products meet the following standards and/or certifications:
UL/CSA, ATEX, IECEX, TIIS (Japan), KOSHA / KCA (South Korea), Class 1 / Division 2 for harsh environments with flammable gasses or combustible dusts, IP54/IP65/IP66/IP67, RoHS - Reduction of Hazardous Substances, REACH - Restricted Chemicals List
Learn more about our standards and certifications →

All Sentech Inc. products are warranted against defective materials and workmanship. This warranty applies for a period of one year from the date of delivery to the original purchaser. Any product that is found within the one year period not to meet these standards will be replaced or repaired at the discretion of Sentech Inc. No other warranty is expressed or implied. Although Sentech Inc. manufactures its products to exacting specification standards, we assume no responsibility for their misuse. Sentech Inc. accepts no liability for damages, incidental or punitive, in applications using our products. Please note: It is solely the user’s responsibility to properly install and maintain transducers. Sentech Inc. manufactures its products to meet stringent specifications and cannot assume responsibility for those consequences arising from their misuse or unauthorized modification. SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.