Deep-throated frame for measuring thickness of sheet metal, paper, plastic, or rubber parts
Digital, single-value readout LCD displays in metric units for readability
Statistical Process Control (SPC) output transmits results to a computer or external device through an interface cable (sold separately)
Ratchet-stop mechanism helps provide uniform pressure for precise, repeatable measurements
Rated IP65 for resistance to penetration by dust and liquid up to the force of a low-pressure water jet
Release Date: 2017-05-15
The Mitutoyo 389 series sheet metal LCD micrometer has a deep-throated frame for measuring thickness of sheet metal, paper, plastic, or rubber parts, and a single-value LCD readout that displays in metric units with resolution to 0.001mm. A ratchet-stop mechanism helps provide uniform pressure for precise, repeatable measurement.
The micrometer’s electronic microprocessor can hold measurements at any position, convert to absolute value, set a temporary zero position, and return to a true zero reading. Depending on the model, an output jack transmits Statistical Process Control (SPC) data results to a computer or external device through an interface cable (sold separately). The micrometer has an Ingress Protection 65 (IP65) rating, which means that components are resistant to penetration by dust and debris, and resistant to penetration by liquids and coolant up to the force of a low-pressure (to 30 kilonewtons/meter-squared) water jet. The measuring faces are carbide-tipped for wear resistance. The micrometer includes, and is powered by, a single SR44 silver oxide battery, and comes with a plastic case for storage.
Micrometers are precision measuring instruments that use a calibrated screw to measure small distances. These measurements are translated into large rotations of the screw that are then able to be read from a scale or a dial. Micrometers are typically used in manufacturing, machining, and mechanical engineering. There are three types of micrometer: outside, inside, and depth. Outside micrometers may also be called micrometer calipers, and are used to measure the length, width, or outside diameter of an object. Inside micrometers are typically used to measure interior diameter, as in a hole. Depth micrometers measure the height, or depth, of any shape that has a step, groove, or slot.
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.