In addition to the rotational objects including the dental hand piece and yarn texturizing machine, the rotational speed of motor itself and machine tools such as cutting drill and end mill are having a large increase in speed. Because of those industrial backgrounds, the measurement of high rotational speed over 100,000 r/min is required in wide area of industry in these days.

The HR-6800, employed electromagnetic sensor in the detection section, enables to measure the high-speed rotation in the wide range up to a maximum of 999,990r/min with non-contact measurement by closing the magnetic-electro detector with magnetizing the rotating object or figure of the drill.

Both analog and pulse signal output are provided as standard function. Analog output is used for recording the fluctuation of rotational speed by pen-recorder etc. and pulse output is used as external sampling signal of tracking analysis at FFT Analyzer.

Built-in memory function up to a maximum of 20 data can be saved to memory.