FREHNIG non contact rpm sensor is a specially designed optical system .A LED transmitter is used to place a spot of RED light on the shaft. A reflective marker, reflects the beam back to the optical system , which will focus the reflected image on the detector. The reflection are converted to pulses. This arrangement is ideal for continuous rpm monitoring.

The rpm meter for this sensor accepts both the non contact type sensor and proximity sensor .Other sensor interface arrangement can be supplied on request . The front panel has a 16 character backlit dot matrix display and cursor keyboard. The meter has an optional RS232 or RS485 ports for interface with PC.  

Using the 485 communication system several of these devices can be put in network to monitor the RPM.

We invite you to explore this site and find out more about our products and projects. For more information on our products or for customized solutions contact us at info@frehnig.com
 
 

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