CARA MEMBACA JANGKA SORONG | KETELITIAN 0.02 mm | VERNIER CALIPER | SIGMAT

Introduction

This tutorial will guide you through the process of reading a Vernier caliper, also known as a Sigmat or jangka sorong, with a precision of 0.02 mm. Understanding how to accurately use this measuring tool is essential for various technical and engineering applications.

Step 1: Familiarize Yourself with the Vernier Caliper

• Components of a Vernier Caliper:

  • Main scale: The fixed scale.
  • Vernier scale: The sliding scale that allows for more precise measurements.
  • Measuring jaws: Used for external measurements.
  • Depth probe: For measuring depth of holes or recesses.

• Understanding the Scale:

  • The main scale typically has millimeter markings.
  • The Vernier scale provides additional precision, with divisions that allow you to read measurements to the nearest 0.02 mm.

Step 2: Preparing the Caliper for Measurement

• Ensure Cleanliness:

  • Clean the jaws and the scale to prevent any debris from affecting the measurement.

• Zero the Caliper:

  • Close the jaws completely and check if the measurement reads zero. If not, adjust as necessary.

Step 3: Taking Measurements

• External Measurement:

  • Place the object between the jaws.
  • Gently close the jaws until they touch the object.

• Reading the Measurement:

  • Look at the main scale first to note the whole millimeter reading.
  • Find the line on the Vernier scale that aligns best with any line on the main scale. This indicates the additional measurement in millimeters.
  • Combine the two readings for the final measurement. For example, if the main scale reads 5 mm and the Vernier scale reads 0.06 mm, the total measurement is 5.06 mm.

Step 4: Measuring Depth

• Using the Depth Probe:

  • Extend the depth probe into the hole or recess you wish to measure.
  • Ensure that the main body of the caliper is resting on the surface to get an accurate reading.

• Reading the Depth:

  • Follow the same procedure as with external measurements to read the depth.

Step 5: Common Pitfalls to Avoid

• Not Calibrating: Always ensure your Vernier caliper is zeroed before use.
• Applying Too Much Force: Avoid squeezing the jaws too tightly as it may damage the measurement tool or the object.
• Reading Errors: Ensure your eyes are level with the scale to avoid parallax errors.

Conclusion

By following these steps, you can effectively read and utilize a Vernier caliper with precision. Regular practice will enhance your accuracy and confidence in taking measurements. As you become familiar with this tool, consider exploring more advanced measuring instruments for even greater precision in your projects.