Measure Fan Speed Rotation
Measure the rotation speed of a fan without contact.
■Highlights
- The rotation speed of a fan can be measured safely without contacting it at a distance of up to 500 mm. 
- Measurement can be performed at the point of either the blade or shaft of the fan. 
- Rotation speed is measured by counting the pulses of light reflecting off the reflective tape. 
- Treatment is made to reduce the influence of direct sunlight. 
- Use of the analog and pulse output of the FT3406 Tacho HiTester enable measuring changes in the rotation
 speed with a data logger.
How to use
- Put the 9211 Reflective Tape on the measurement location. 
- Focus the light from the FT3405 or FT6406 Tacho HiTester on the reflective tape. 
- The measurement distance is 50 to 500 mm and the measurement range is 30 to 99990 rpm.
      
       
          

 
      