Calibration Procedure for Manual, Dial, Digital Caliper.
A caliper is essential to ensure accurate
measurements. Whether you’re using a digital, dial, or Vernier caliper, here’s a step-by-step guide
to help you calibrate it.
- Check the Environment:
- Record the actual temperature and relative humidity
before starting the calibration process.
- Ensure that the environment is stable and
free from vibrations.
- Prepare the Necessary Tools:
- Gather the following tools:
- Gauge blocks (for comparison)
- Cylindrical pin gauge or plug gauge
(based on the required length)
- Caliper checker or check masters
- Tool oil and task wipers (optional but helpful)
- Zero Set the Caliper:
- Clean the jaws (both inside and outside), rack, and
depth rod of the caliper.
- Zero set the caliper to ensure that it
reads zero when fully closed.
- Calibration Procedure:
- Use the gauge blocks or other known
standards to compare the measurement readings.
- Measure
the distance between the jaws using a calibrated Vernier caliper or other
reference tool.
- Record the readings and compare them to
the known values.
- Take multiple readings for increased
accuracy.
- Calibration Frequency:
- Consider factors such as how the caliper
will be used, the tightness of tolerances, environmental conditions, and
usage frequency.
- Calibrate
more frequently for critical measurements and adjust based on the tool’s
consistency over time.

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