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Knobs

Knobs
Knobs
A knob is a cap-shaped piece of hardware that slips over a potentiometer or switch. Turning the knob makes adjustments to voltage, or turns equipment on an off.

Knobs and dials are generally marked with an indicator that points to a voltage value. The value can be numbered or represented by an icon or bar that gradually increases in size. Turn the knob in either direction turns the attached potentiometer, adjusting voltage accordingly. They can adjust the speed of a drive or motor, or change the volume on an amplifier.

Counting dials are specific types of knobs that are designed for precision potentiometers. The knob has a built-in counter that indicates the number of turns made. The count is used to dial into a very precise position, and the counting dial can be locked to maintain that position.

SKRT Series Image
  • Skirted Design
  • Package Sizes from 0.75 Inch to 2.375 Inch Diameter
  • Most Models Standard Feature 1/4 Inch Shaft Diameter; 1/8 Inch Available
  • Slotted Set Screw for Secure Mounting
  • Available Brass Insert for Mounting Hole
21 Series Image
  • Vernier Scale
  • No. 4-40 Hex Socket Set Screw for Mounting
  • Brake Lever Knob
  • Open Window Display
  • Satin Chrome Finish, Black Markings
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.
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.
16 Series Image
  • Vernier Scale
  • No. 2-56 Spline Socket Set Screw for Mounting
  • Brake Lever Knob
  • Open Window Display
  • Available in Satin Chrome or Black Chrome Finish
Readout and Operation: Unit shall register a total count of 15 turns. The number in 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.
Minor Scale Division: 1/50 turn
Indication: 0 to 14.99 turn
Brake Lever: 1st position (15° movement of brake lever) operates a high torque system for fine adjustment; 2nd position (15° additional
movement of brake lever) actuates brake.
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.
15 Series Image
  • 3 Digit or 4 Digit Display
  • 2 No. 4-40 Hex Socket Set Screws for Mounting
  • Brake Lever Knob
  • Open Window Display
  • Satin Clear Anodized Finish
3 Digit (10 turn): The left digit indicates the number of complete revolutions of the turning knob and the right two digits indicate the
percent of a revolution. The unit registers a total count of 999.
4 Digit (100 turn): The left two digits indicate the number of complete revolutions of the turning knob and the right two digits indicate the percent of a revolution. The unit registers a total count of 9999.
Minor Scale Division: 1/500 turn
Indication: 0 to 9.99 turn (3 Digit), 0 to 99.99 (4 Digit)
Accuracy: ±0.2% of knob position
Rotation: The indication shall increase with clockwise rotation.
Transfer Point: between 9.2 and 0
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