Product Description

The HCD Series hermetically sealed DC operated LVDTs are the perfect choice for high performance measurements in environments containing moisture, dirt, and fluid contaminants. Operating on a nominal ±15VDC supply, these heavy-duty LVDTs deliver an extremely linear, low noise, yet high frequency response ±10VDC output. The integral electrical connector (welded, glass-sealed MS type) provides for easy installation and allows replacing a damaged cable without sacrificing the sensor. The HCD is available in stroke ranges of ±0.05 inch [±1.27mm] up to ±10 inches [±254mm], and with a number of standard options including imperial or metric threaded core, guided core and captive core. 

Like in most of our LVDTs, the HCD windings are vacuum impregnated with a specially formulated, high temperature, flexible resin, and the coil assembly is potted inside its housing with a twocomponent epoxy. This provides excellent protection against hostile environments such as high vibration and shock. Captive core option: The HCD features an optional captive core design (available for most models) that greatly simplifies installation. The core rod and bearing assembly includes a Bronze bearing on the front end for self-alignment, while a PTFE sleeve allows low-friction travel through the stainless steel boreliner (spool tube). The core rod and the bearing assembly are both field serviceable.