Macro Sensors’ HSTA and HSTAR 750 Series of 3/4 inch (19 mm) diameter

AC-operated LVDTs are designed for a wide range of position measurement

applications. These are rugged hermetically sealed sensors, constructed entirely

of stainless steel, and intended for use at high temperatures (400°F). The coil

windings are sealed against hostile environments to IEC standard IP-68 and

electrical termination is through a sealed axial (HSTA) or radial (HSTAR)

connector. The radial connector offers two important benefits. First, it results in a

through-bore design, which permits access to either or both ends of the LVDT’s

core for better mechanical support and core guidance, and easier cleanout in

dusty or dirty locations. The second advantage of the radial connector is shorter

installed length compared to units of the same range with axial connectors. The

mating connector plug is supplied with the unit.

Available in ranges of ±0.050 inch (±1.25 mm) to ±10.0 inches (±250 mm),

HSTA/HSTAR 750 Series sensors feature the high resolution, excellent

repeatability, and low hysteresis associated with LVDT technology, as well as

the highest sensitivity consistent with good linearity. The maximum linearity error

for any of these sensors is ±0.25% of full range output using a statistically bestfit

straight line derived by the least squares method.

Macro Sensors offers several standard options that permit a user to customize

HSTA/HSTAR 750 LVDTs, including Teflon® bore liners and metric threaded

cores, as well as smaller diameter and low mass cores. In addition, Macro

Sensors can provide a range of mounting accessories and core extension rods.

On special order, the HSTA/HSTAR 750 Series can be constructed for

resistance to mild nuclear radiation (3x107 Rads), as well as for immersion in

pressurized fluids and to withstand higher operating temperatures.

All HSTA/HSTAR 750 Series LVDTs will operate properly with any conventional

differential input LVDT signal conditioners, but operation with ratiometric LVDT

signal conditioning is not recommended. Macro Sensors offers a full line of

LVDT signal conditioners that will deliver optimum performance from any

HSTA/HSTAR 750 Series LVDT.

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Beijing GRS S&T Co.,LTD

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