Mitutoyo 543-791 Absolute LCD Digimatic Indicator ID-S, M2.5X0.45 Thread, 8mm Stem Dia., Lug Back, 0-0.5"/0-12.7mm Range, 0.00005"/0.001mm Graduation, +/-0.00012" Accuracy

The Mitutoyo 543-691 ID-S112M Digimatic indicator gauge measures to 0.5” (12.77 mm), has an LCD digital readout with resolution of 0.00005” (0.001 mm), and data output to transmit results to a Mitutoyo miniprocessor or computer for statistical process control (SPC). The gauge is accurate to + or - 0.00012” (0.003 mm), and supports a measuring force of 2.0 newtons or less. The unit runs on, and includes, one SR44 battery.

This indicator gauge has an electronic microprocessor that can set a temporary zero position and return to a true zero reading, and switch counting direction. The LCD digital readout can display measurements in inches or metric units. The output port transmits results to a Mitutoyo miniprocessor or computer through an interface cable for SPC (sold separately). The electronics housing has an Ingress Protection 42 (IP42) rating, for protection against objects larger than 1 mm and direct sprays of water at vertical angles to 15 degrees. An electrostatic capacitance linear encoder helps prevent overspeed errors which help ensure repeatable, precise measurement. The gauge’s stem diameter is 3/8”, with threads conforming to #4-48 UNF of the Unified Thread Standard (UTS). The gauge conforms to the American National Standards Institute/American Gage Design (ANSI/AGD) standard.

Indicator gauges, also called gages or dial indicators, are precision instruments that measure short linear distances. They are commonly used for detecting deviations from tolerance limits, such as the amount of surface distortion, or runout, on a round or cylindrical workpiece. They have two styles: digital indicator gauges and dial indicator gauges. Digital indicator gauges use an electronic sensor and display measurement through an LCD or other digital display. Dial indicator gauges measure through a spring-loaded plunger driven into its shaft. The pointer on the dial display marks the degree the plunger is depressed, while an additional turn counter may track the number of times the pointer has spun around the dial. For all types of indicator gauges, runout is typically measured when the tip of the plunger (the point) is held perpendicular to the rotating workpiece. Indicator gauges are typically used in manufacturing, machining, and mechanical engineering.

Mitutoyo manufactures precision measuring tools, metrology equipment, and systems. The company was founded in Tokyo in 1934 and formed Mitutoyo America Corporation in 1963, which is headquartered in Aurora, IL.

What’s in the Box?

• Mitutoyo 543-691 ID-S112M Digimatic indicator gauge
• One SR44 battery