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Mahr Inc.


MarCheck Measuring and Evaluation Unit for Mahr Linear 100

Measurements and calibrations at the touch of a button

Published: Tuesday, January 11, 2011 - 12:36

(Mahr Federal: Providence, RI) -- Mahr Federal has introduced a new MarCheck measuring and evaluation unit for its high-precision Linear 100 universal length-measuring instrument. MarCheck allows both measurements and calibrations to be performed quickly and reliably at the touch of a button. Results are clearly shown in large digits on the display screen and can be output via USB or RS-232 ports. With a direct measuring range of up to 50 mm (2 in.) and an application range of up to 100 mm (4 in.), the Mahr Federal Linear 100 provides rapid, accurate internal and external measurements directly on the shop floor.

“The MarCheck evaluation unit makes the Linear 100 even more versatile for precision measurement on the shop floor,” says George Schuetz, Mahr Federal’s director of precision gauges. “In addition to performing submicron measurements, the Linear 100 with MarCheck now helps precision machinists save time by performing calibration checks, such as setting direct-reading measuring equipment or two-point bore gauges.”


MarCheck allows both measurements and calibrations to be performed quickly and reliably at the touch of a button.


Key to the development of MarCheck was intuitive operation. Easy-to-use menus guide operators, and measurements are performed systematically using function keys. The Linear 100 with MarCheck offers a more economical alternative to rings and gauge blocks for shop-floor mastering of inner and outer comparative measuring equipment, two-point measuring instruments, inside calipers, and dial comparator snap gauges. MarCheck upgrade packages are also available for older length-measuring machines.

Compact in design, the Linear 100 features an adjustable 76 × 76 mm (3 × 3 in.) measuring table for precise adjustment of part position when measuring outside dimensions, and a 4 oz to 40 oz (1 to 11 N) adjustable measuring force that remains virtually constant over the entire measuring range. For inside dimensions, the 100 mm (4 in.) × 185 mm (7.3 in.) worktable allows for precision part positioning for measurement. The integrated measuring system is based on the Abbe principle (i.e., the measuring arm and reference are in line), which eliminates cosine errors.

Internal and external measurements, as well as combined internal and external measurements, are possible without remastering, and easily interchangeable measuring anvils provide increased part measuring versatility. The solid-cast body reduces stresses and twisting error, and a large digital display provides clear readouts with selectable ID/OD results and preset values. An RS-232 interface makes it easy to transfer output data to PCs, and optional software allows measured values to be transferred to Windows programs such as Microsoft Excel.


About The Author

Mahr Inc.’s picture

Mahr Inc.

Mahr Inc. a member of the Mahr Group, manufactures and markets a complete range of dimensional measurement solutions from handheld and custom-made gauges to technically advanced measurement systems for form, contour, surface finish and length for the automotive, aerospace, medical products, electrical, plastics, and optical engineering industries. Mahr also provides calibration and contract measurement services. Mahr's calibration laboratories are accredited to ISO/IEC 17025:2005, NVLAP Lab Code 200605-0. Mahr Group is headquartered in Göttingen, Germany. Mahr Inc. is headquartered in Providence, Rhode Island.