High-Performance Height Gauge

Mitutoyo America Corp.’s (Aurora, IL) QM-Height Series measures height, height difference (step), inside/outside width, inside/outside diameter, circle pitch, and free-form surface max/min height to ±(2.4+2.1L/600) μm accuracy (scanning stroke is approximately 1 mm above and below measurement start point). A built-in pneumatic flotation system enables smooth movement over a surface plate.

Two subdisplay modes display the value from previous measurements or  zero/origin point. Origin points can also be set from hole centers. Other features:

• LEDs indicate tolerance judgment status with green for GO, red for +NG, and orange for -NG. Status is also indicated by corresponding symbols on the display.
• Proprietary mechanism and firmware enable scanning of inside/outside diameter, max/min height, and height difference using a standard probe.
• Electromagnetic induction-type ABSOLUTE encoder maintains the origin. Except when there’s a considerable environmental change, origin doesn’t need to be set after turning on the power.
• D2 digimatic and USB ports are standard. Optional U-WAVE-T wireless communication system instantly transmits data to Excel or SPC software on a PC, increasing reliability by minimizing manual input errors.
• 1,200 hours of continuous use with four AA batteries is an improvement from 300 hours.
• Air-suspension. Pressing a button on the grip activates the internal air pump. The base rises on a cushion of air and is able to be moved smoothly over the surface plate.

Mitutoyo America Corp., 965 Corporate Blvd., Aurora, IL 60502, 630-820-9666; fax: 630-820-2614, marketing@mitutoyo.com, www.mitutoyo.com.