Tachometers are commonly used for flash rate, total length, fan speed, belt, and input/output shaft speed; from propeller speed to yarn/filament or wire speed, paper and pulp mills to blood centrifuges.

Choose from the following types of tachometers: Contact Tachometers
Contact Tachometers are used to measure the rotation speed of a rotating object. With a tachometer, the shaft of the rotating component is coupled to the shaft of the handheld tachometer by friction. Simply stated the tachometer shaft’ll rotate at a speed that’s the same as the component you’re measuring.
To make measurements of the linear speed like conveyor belt speed utilize a contact tachometer along with wheel attachment. Put the wheel towards the conveyor belt and at the same rate, the wheel will rotate. The tachometer will make calculations to the linear speed on the display depending on the fixed diameter of the wheel and rotational rate.

Non-Contact Tachometers
Laser and photo tachometers are utilized to measure the rotation speed, with none of the physical contacts. A part of the reflective material’s fixed to the rotating component. The photo tachometer releases a beam of infrared light that’s directed to the reflective target. When the light beam strikes the target, it’s reflected back to a light sensor housed within the tachometer. If the component’s steadily rotating, the tachometer will count the amount of times it gets a reflected signal giving a reading in RPM.

Contact/ Non-Contact TachometersContact/ Non-Contact Tachometers have the combined features of both contact and non-contact tachometer giving you more versatility. Use one unit for non-contact and contact RPM readings along with contact linear speed measurements.

If you need assistance selecting or configuring a tachometer for your speed measurement application please contact us at toll free 1.866.363.6634 or email us at [email protected].