BECKMAN - Duodial15 – 2606 - Model RB Helipot Potentiometer 15 Turn Counting Dial Knob

BECKMAN - Duodial15 – 2606 - Model RB Helipot Potentiometer 15 Turn Counting Dial Knob The Duodial turns-counting dial reads 15 turns to a precision of 0.01 turns. The dial can be locked in any position. It is designed to be mated with the Helipot Precision Potentiometer or any other potentiometer with a 0.25 inch diameter shaft. Beckman Instruments 2600 Series Helipot Duodial 15 Turn Counting Knob for 1/4" Shaft. Often used with 10 Turn Potentiometers.Bechman is now TT Electronics Specifications & Operation Readout and Operation: Unit shall register a total count of 1499. The number in the center of the window (0 thru 14) indicates completed number of turns of the drive sleeve. Graduated circular dial indicates the percent of a partial turn of the drive sleeve. Dial Division: 50 per turn Minor Scale Division: 1/100 turn Indication: 0 to 14.99 turn Accuracy: Backlash shall be zero between graduated dial and drive sleeve Rotation: The indication shall increase with clockwise and decrease with a counterclockwise rotation. Transfer Point: The number in the center of the window shall change as graduated dial rotates between 94 and 0. Mechanical Shaft Bore: 0.250” Runout: 0.004 in/in Mount: For ¼” (0.25”) Diameter Shaft. Counts 0-14 and continues back to Zero if you continue rotation. Small scale graduated 0-100. Friction Lock Lever on the side to maintain the setting. Comes with Black Plastic Mounting Washer. One shaft locking screw possibly 2606S Removed from in Service industrial instrumentation.. Still very nice parts in excellent condition. Genuine Vintage Beckman – Rare – Difficult Component to find “As Removed” Dimensions: 1.83” x 1.83” x 1.0” Inch / 46 x 46 x 25 mm Made in USA