Manufacturer: SHANGHAI AUTOMATION INSTRUMENT TACHOMETER AND INSTRUMENT MOTOR CO., LTD.
Application: SZG-20B non-contact handheld digital tachometer
SZG-20B-type touch handheld digital tachometer is a compact high-precision tachometer, which uses photoelectric conversion principle, can be measured by contact mode the motor speed and line speed and a variety of machinery and equipment, instruments using five LCD digital display, intuitive and accurate, easy to use, small size, easy to carry, wide range.
SZG-441 Optical handheld digital tachometer, wide type a measuring range, high precision, multi-function, easy to use tachometer, measure the speed, line speed and frequency. And has a counting function and has a maximum value, minimum alarm. Can store the last general non-contact handheld digital tachometer compared to small, compact shape, feel better. The measured object rotation posted a reflective marker, visible light spot alignment tachometer reflective markers can be measured when using.
Measuring range: 10 ~ 25000 r / min (20B) 10 ~ 50000 r / min (441C)
The basic error: basic error meter limit should not exceed ± 0.05% × Nb