A: Tire speed
B: Motor speedC: Gear speed
D: Motor speed
E: Laser scattering
Photodiode and laser tube sensor
2.LED display
Function | Range | Resolution | Accuracy±(readout+word count) | Description |
Display digits | 5 digits | |||
Measuring range | 10-99999RPM | |||
Measuring method | Non-contact (laser) | |||
photoelectric | ||||
Resolution | (10-9999.9)0.1rpm | 0.1RPM | 0.04%+2dgt | Automatic range |
(>10000RPM)1rpm | 1RPM | ±1dgt | ||
Measuring error | ±(0.04%+2dgt) | |||
Measuring distance | 50mm-200mm | The angle between the laser and | ||
Refresh rate | 1SEC(>120r/s) | the plane being measured is less than 30 | ||
to 7SEC(depend to r/s) | ||||
Count | 0-99999 | 1CNT | Automatic range | |
Max/Min/Average value | √ | |||
Numerical memory | √ | |||
Low battery prompt | √ | |||
Data lock | √ | |||
Lcd backlight | √ | |||
Working environment | 0-50℃ | |||
Storage temperature | -20 to 60℃ | |||
Power supply | 1.5V AA Battery*3 | |||
Working current | 40mA | |||
Battery Life | ~40h | |||
Automatic shut-down | √ |