Dial Test Indicator
Description
A Dial Test Indicator (DTI) is a precision measuring instrument used to measure very small linear displacements and deviations. It is commonly used for alignment, checking flatness, run-out, and concentricity in machining and inspection work. The stylus movement is magnified and displayed on a dial for accurate readings.
Parts
- Dial Face: Displays measurement readings.
- Pointer: Indicates the displacement value.
- Stylus/Probe: Contacts the surface being measured.
- Body: Holds internal mechanism.
- Mounting Stem: Used to fix the indicator on a stand.
Material
- Stainless Steel Body
- Hardened Steel Probe
- Glass or Plastic Dial Cover
Uses
- Checking alignment and run-out
- Measuring small displacements
- Inspecting flatness and concentricity
- Precision machining and quality control
Safety
- Handle carefully to maintain accuracy.
- Avoid excessive force on the probe.
- Keep clean and free from dust.
- Store in a protective case.
- Calibrate regularly for accuracy.