Precautions for the use of dial indicator

1) Before use, check the flexibility of the movement of the measuring rod. That is, when the measuring rod is gently pushed, the movement of the measuring rod in the sleeve should be flexible, without any jamming, and the pointer can return to the original scale position every time the hand is released.

2) When using, the dial indicator must be fixed on a reliable holding frame. Don't be greedy to save troubles, just clip it in an unstable place, otherwise it is easy to cause inaccurate measurement results or break the dial indicator.

3) When measuring, do not make the stroke of the measuring rod exceed its measuring range, do not make the meter head suddenly hit the workpiece, and do not use a dial indicator to measure the surface roughness or work with significant unevenness.

4) When measuring a plane, the measuring rod of the dial indicator should be perpendicular to the plane. When measuring a cylindrical workpiece, the measuring rod should be perpendicular to the center line of the workpiece. Otherwise, the measuring rod will be inoperable or the measurement result will be inaccurate.

5) In order to facilitate the reading, the large pointer is generally pointed to the zero position of the dial before the measurement.