Understanding the Risks of Improper Storage
Mechanical Damage
The dial caliper is a cornerstone instrument in the world of precision measurement. Impacts from dropping the tool, even from a small height, can bend the jaws, damage the dial mechanism, and disrupt the delicate alignment of the sliding components.
Exposure to impacts and accidental bumps while stored with other tools can cause similar problems. Sharp edges of other tools, abrasive materials, or even just the weight of objects pressing against the jaws can lead to wear and tear, compromising accuracy over time.
Environmental Damage
Humidity and moisture are the arch-enemies of any precision tool, and the dial caliper is no exception. Rust and corrosion can quickly form on the metal components, particularly the sliding surfaces, the rack and pinion, and the dial mechanism. Dust and debris are also significant threats. Extreme temperatures also present a danger.
Accuracy Degradation
Over time, the combined effects of mechanical damage and environmental factors can lead to a gradual but significant loss of precision. The dial mechanism itself might be damaged, leading to unreliable readings.
Preparing Your Dial Caliper for Storage
Cleaning the Caliper
Dust, debris, oil residue, and fingerprints all contribute to the degradation of the instrument. Begin with a soft cloth to wipe away any loose debris and surface grime. Avoid using abrasive materials or harsh chemicals, as these can scratch the surface or damage the finish.
To remove particles that might be trapped in the sliding surfaces or the gear mechanism, compressed air is highly recommended. Apply a very thin layer of a light lubricating oil to the sliding surfaces, the gear rack, and the pinion.
Checking Calibration
Next, it’s vital to check the calibration of your dial caliper before you store it. Use gauge blocks or other known standards to verify the readings across the full range of the caliper.
Closing the Jaws
Finally, close the jaws completely. This simple step provides an extra layer of protection for the measuring surfaces and the dial mechanism.
Recommended Storage Practices
Storage Containers
The original case that came with the dial caliper is often the best option. A sturdy case, made from a material like high-impact plastic or metal, will provide excellent protection against impacts. Designate a specific drawer or compartment within a cabinet for storing your dial calipers.
Environmental Considerations
Humidity encourages rust and corrosion, so it’s important to minimize the moisture content of the storage environment. Consider using desiccant packs or silica gel to absorb moisture from the air.
Choose a location that remains relatively constant. Direct sunlight can damage the dial and other plastic components. For long-term storage, consider the following: Inspect the dial caliper periodically.
Long-Term Storage Tips
Inspect the dial caliper periodically, even if it’s not being used. Clean and re-lubricate the instrument as needed. Recalibrate it after extended storage to ensure its continued accuracy.
Common Mistakes to Avoid
One of the most common errors is storing the caliper with wet or dirty components. Always ensure that the instrument is completely dry and clean before placing it in storage. Another mistake is using abrasive cleaners on your dial caliper.
Storing your dial caliper in areas with high humidity or extreme temperatures is also a critical mistake. Avoid stacking heavy objects on top of the storage case.
Neglecting to check calibration periodically is a grave error. Regular calibration checks will identify any shifts in accuracy before they become significant.
Conclusion
Proper storage is not just an afterthought; it’s an essential part of owning and maintaining a dial caliper. By following the recommendations outlined in this guide, you can significantly extend the life and accuracy of your instrument, protecting your investment and ensuring that it’s always ready for precise measurement.
Remember, proper storage protects the instrument from mechanical and environmental damage. It minimizes the risks of accuracy degradation, and it helps preserve the instrument’s value over time. By making a small investment in proper storage, you can rest assured that your dial caliper will continue to serve you reliably for years to come.
