LT-880 Fibre Optic Laser Tachometer

• Remote Sensing of RPM and Angular Vibration
• No Special Reflective Tape Required
• Large 5 Digit LED Display
• Sensing rates to 40 000 PPS
• Ni-mH Powered with Fast Charger
• Measures RPM, RPS, PPS
• Entry of number of encoder sectors

The LT-880 Fibre Optic Laser Tachometer is a non-contact instrument designed to measure rates of rotation by sensing the presence or absence of a reflective surface in its optical beam. These are typically provided by affixing an easily made black and white encoder to the surface of the rotating component. A TTL signal is asserted whenever a reflective surface is sensed. The output signal may be read directly from the display or used in conjunction with a spectrum analyser to sense linear translation, RPM, and angular vibrations. A five meter fibre optic cable enables the optical sensor to be placed in hazardous environments and/or inaccessible spaces where a conventional unit cannot be used. The LT-880 adds the additional flexibility of a multi-functional readout.