US Digital Releases HBA4 Azimuth & Elevation Absolute Encoder

Jun 08, 2010, 11:00 ET from US Digital

VANCOUVER, Wash., June 8 /PRNewswire/ -- US Digital announces the release of its latest absolute, blind hollow bore shaft encoder, the HBA4.  HBA4 absolute encoders are used as azimuth and elevation position sensors in two axes tracking systems, commonly used in solar applications.

This single turn absolute encoder provides 16-bits of resolution over 360 degrees of shaft rotation. The HBA4 is available with a 12mm or 0.500" diameter bore size with either a ball bearing or sleeve bushing bearing assembly and is sealed to an IP66 rating.

The absolute encoder slips over a shaft and is locked in place with a non-marring clamp mount.  A flexible anti-rotation tether provides single point mounting for bolt circles ranging from 2.50" up to 5.00" in diameter and compensates for shaft run out. The HBA4 communicates serially to a host via the industry standard RS485 bus.  Visit for more information. US Digital will be exhibiting at Intersolar North America 2010 in San Francisco's Moscone Center West Hall from July 13-15, booth number 7952.

HBA4 Product Features:

16 bit single turn absolute resolution

Angular accuracy 0.07 degrees

Hollow bore with tether mount provides run out compliance

Programmable resolution, zero location, CW/CCW direction

Ball bearing or sleeve bushing rotating assembly

Non-marring clamp mount

IP66 rating

-25 C to 85 C operating temperature rating

Aggressive pricing and two year warranty