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  4. LVDT sensors
  5. HCA Series LVDT Position Sensor

HCA Series LVDT Position Sensor

Hermetically sealed LVDTs which provide premium performance in harsh industrial environments


Key features

  • Heavy duty AC-operated model
  • All-welded stainless steel construction
  • Glass sealed, MS type connector (MIL-C-5015)
  • Shock and vibration tolerant
  • Suitable for Hostile Environments
  • Connector Termination

About the HCA Series - Hermetically Sealed LVDT

The HCA/HCA-RA Series hermetically sealed LVDTs provide premium performance in harsh industrial environments. Impervious to dirt, water, steam and corrosive liquids and vapors compatible with its materials, the HCA/HCA-RA Series all-welded stainless steel construction withstands external pressures up to 1,000 PSI [70 bars]. Double magnetic shielding offers excellent protection from external electromagnetic fields.
The HCA/HCA-RA Series can be configured with a number of standard options including but not limited to high temperature operation (+220°C) and mild radiation resistance (1012 NVT total integrated flux; 107 rads Gamma). The HCA/HCA-RA Series is compatible with the full line of Altheris LVDT signal conditioners.

The HCA-RA version adds the convenience of a radial connector termination. This feature decreases the required installation space, while also allowing debris to harmlessly pass through the ‘open-ended’ bore.

Captive core option: The HCA/HCA-RA features an optional captive core design that greatly simplifies installation. The core rod and bearing assembly includes a Bronze bearing on the front end for self-alignment, while a Teflon sleeve allows low-friction travel through the stainless steel boreliner (spool tube). The core rod and the bearing assembly are both field serviceable.

Also see our models with built-in signal conditioning: HCD (DC voltage), HCT-IS (4-20mA 2-wire loop; CSA/FM Intrinsically Safe) and HC-485 (RS-485 Digital Series), also available in the -RA (Right Angle) versions.

Other features HCA Series

  • Captive core eases installation (optional)
  • Mild radiation resistance (optional)
  • Calibration certificate supplied with each unit
  • Right angle (HCA-RA) version available
  • High Temperature (220°C) Available OPTIONS:5.0 and 10.0 kHz Excitation Frequency Testing*
  • Metric Thread Core
  • Guided Core
  • Small Diameter/Low Mass Core

Applications for HCA Series

  • Harsh industrial environments
  • Submersible (with appropriate connector)
  • Pressure vessels
  • Corrosive liquid and vapor areas (check materials)
  • Mild radiation areas
  • Turbine valve

Do you need this sensor for your next project?

Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.

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Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.

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Technical Specifications

Specification Value
Electrical connector 6-pin MS type connector
Housing material AISI 400 Series stainless steel
Measurement range 1,27 to 254mm
Non-linearity ±0.25%
Operating temperature -55°C to 150°C
Output 210 to 1300mV/V
Rating IP68 to 1,000 PSI (70 bar) with the use of proper mating connector plug
Shock survival 1,000g
Vibration tolerance 20g up to 2kHz

Related products

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HCA-RA LVDT Position Sensor

  • Right angle (HCA-RA) version available
  • Suitable for Hostile Environments
  • Connector Termination
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HCA-T-Series LVDT Position Sensor

  • 392°F [200°C] continuous operation
  • Shock and vibration tolerant
  • ±0.25% of Full Range linearity (100% of stroke)
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HCD Series LVDT Position Sensor

  • Heavy duty model
  • Measurement range: 1.27 to 254mm
  • Non-linearity: ±0.25% FR
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