SPECIFICATIONS
Hermetically sealed housing
Single ended 8.5 to 24VDC supply
Low current consumption (only 6mA)
Ideal for battery operation
IEC IP68 rating to 1,000 PSI [70 bars]
Long strokes up to 2 inches
Hardened tool steel contact tip
High side load resistance
The GCD-SE Series of heavy-duty DC operated gage heads enable high
performance in environments containing moisture, dirt, and fluid
contaminants. With a spring loaded LVDT, a precision linear bearing, and
internal conditioning electronics operating on a single ended 8.5 to 28VDC
input with minimal current draw, the GCD-SE is ideally suited to portable
measurement applications in difficult environments. Internal EMI, ESD and
RFI protection, provide CE compliance when correctly installed.
Synchronous demodulation ensures unsurpassed noise rejection.
These robust gage heads allow measurements over stroke ranges from 0
to 0.1 inch [2.54mm] up to 0 to 2 inches [50.8 mm]. The spring force is
typically 9oz [255 grams] at fully compressed electrical stroke. A
removable black-chromed, hardened tool steel tip is threaded (4-48UNF-
2A) to the working end. Internal construction prevents the core and shaft
from rotating as they move longitudinally. The integral electrical connector
(welded) provides for easy installation and allows replacing a damaged
cable without sacrificing the sensor. Installation and adjustment are
facilitated by an external ½-20 mounting thread and the two locknuts
supplied with each unit.
Like in most of our LVDTs, the GCD-SE windings are vacuum impregnated
with a specially formulated, high temperature, flexible resin, and the coil
assembly is potted inside its housing with a two-component epoxy. This
provides excellent protection against hostile environments such as high
vibration and shock.
The ruggedness, long life cycle, and very high reliability of the GCD-SE
Series provide the lowest cost of ownership over the life of the equipment
onto which they are installed. The one-piece front end (barrel which
contains the bearing assembly), machined from solid stainless steel bar,
coupled with a bronze bushing, has far greater resistance to bending
forces and side loads compared to other designs. This is particularly
important on the longer stroke versions; it reduces the common risk of
probe damage/bending during installation or maintenance of industrial
equipment. The GCD-SE Series designs also require fewer parts and weld
joints, thereby increasing overall structural integrity and reliability.
