By this we mean that the pressure of the contact point (probe) on the work piece being checked should move the sweep hand (needle) 1/8 toВ 1/4В ofВ a turn on the dial face or approximately. To get accurate measurements, your dial/digital indicator should be вЂњpre-loadedвЂќ.

The exception is that it has a вЂњleverвЂќ on top of the dial body that allows the operator to raise and lower the contact point (probe) from the work piece instead of having to grab the spindle with your fingers. The lever style dial indicator resembles the standard dial indicator and functions the same way. These work well for the inexperienced operator. This вЂњup and downвЂќ movement is transmitted to a pinion and then through a train of gears to the sweep hand (needle).В This allows the user to see the movement transformed to a larger, observable and measurable movement of the sweep hand (needle) on the dial face.Д®lectronic indicators function in the same way except they have an electronic display instead of a dial face so the operator can more easily monitor the movement by showing the actual numeric value of the measurement/movement on an LED display. They are found on concentricity gauges, case neck sorting tools and neck turning tool adjustment fixtures to name a few.Дial indicators measure movement that is transmitted by the contact point (probe)В which is attached to the spindle. There are a number of different types of dial indicators including mechanical, lever andВ electronic but the most commonly used is the mechanical dial indicator.

Accurate 4 dial indicator