SZG-20B

Handheld Digital Tachometer

SZG-20B handheld digital tachometer is a compact type high-accuracy tachometer which adopts a photoelectric conversion principle and can measure the rotating speed and linear speed of motors and various kinds of machinery and equipment in a contact mode. Due to the adoption of five-bit digital display with LCD, the instrument features intuitive and accurate display, convenient use, small volume, convenient carrying and wide application range.

Main Technical Parameters

Measurement range: (10~25000) r/min

Basic error: the basic error limit of the instrument should not be more than±0.05%×Nb (Nb – standard rotating speed value: r/min)

 Note: the basic error limit is based on ±1 bit when the basic error limit is±1 bit less than the displayed value.

Display mode: five-bit digital display with LCD

Sampling time: 1S

Working temperature

Range: 5℃~40℃

Starting torque: no more than 4.9×10^-4 N•m

Power supply: three No.5 batteries

Dimensions: (42.5×58×166)mm

Weight: 160g

SZG-441C

Handheld Digital Tachometer

SZG-441C non-contact handheld digital tachometer features wide measurement range, high accuracy, multiple functions and convenient use, can measure rotating speed, linear speed and frequency, and has a counting function and a maximum and minimum alarming function. It can store the measurement value of the last time as well as the maximum and minimum in this measurement process. The tachometer has small volume, exquisite modeling and better handfeel compared with common non-contact handheld digital tachometer. During use, the tachometer aligns visible light point with a reflective marker for measurement after attaching the reflective marker onto a rotating object to be measured.

Main Technical Performance

Rotating speed

Measurement range:(10~50000)r/min

Accuracy:(10~11999±1) r/min

  (12000~29999±2)r/min

  (30000~50000±4)r/min

Frequency

Measurement range: (0.1-9999.9)r/s

Accuracy: ±0.1r/s

Linear speed

Measurement range: (0.5-9999)m/s

                                     frequency range: (0.5~1500) r/s

Accuracy: (0.5~999.9±0.1) m/min

   (1000~9999.9±0.2) m/min

Measurement distance: (10~200) mm

Display: 5-bit digital display with LCD

Sampling time:1s

Power supply: three No.7 batteries (please try not to use rechargeable batteries)

Working temperature: 5℃~40℃

Dimensions: (138×58×23)mm L×W×H

Weight:about 160g