Programming instructions

accessories
sensor accessories
Potentiometer Kit
Potentiometer Kit • 1
For More Information, and additional Parts & Pieces refer to:
www.VexRobotics.com
Limited 90-day Warranty
This product is warranted by Innovation First against manufacturing defects in material and workmanship under normal use for ninety (90)
days from the date of purchase from authorized Innovation First dealers. For complete warranty details and exclusions, check with your dealer.
Innovation First, Inc.
1519 IH 30 W
Greenville, TX 75402
10/07
The Vex Potentiometer will keep things ‘on the level’. Use this
sensor to get an analog measurement of angular position. This
measurement can help to understand the position of robot arms,
or other mechanisms. To effectively utilize this sensor, users are
required to use the Vex Programming Kit.
The Potentiometer is designed with a “D-hole” in the center. This hole should slide easily over
the Vex square shafts. The Potentiometer also includes (2) “arcs” which are 1/2” from the
center hole; these arcs are used for mounting the Potentiometer to the robot structure.
The mounting arcs allow for 90-degrees of adjustment to the Potentiometer position. Since the
Potentiometer has limited travel, it is important to ensure that the shaft that is being measured
by the Potentiometer does not travel more than 260-degrees (the Potentiometer can only move
mechanically about 265-degrees ± 5 and can only measure electrically 250-degrees ± 20).
The adjustment arcs allow the Potentiometer’s “range of motion” to be repositioned to match
the shaft’s range of motion. To measure the motion of something which moves more than
230-degrees, try gearing down the shaft’s motion to a secondary shaft (this secondary shaft will
move less distance) and then measure this secondary shaft.
YOU MUST HAVE A
PROGRAMMING KIT
TO USE THIS SENSOR!
(4x) 1/2” Long
Threaded Beam
(4x) 8-32 x 1/2” Long
Mounting Screws
(4x) 8-32 x 1/4” Long
Mounting Screws
(2x) Potentiometer
Assembly
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