Torque wrench calibration

Anyone who uses torque tools knows that over time, general usage alongside wear and tear can have a detrimental impact on the tool’s internal workings, leading to the tool delivering more or less torque than intended to. As a result, fasteners may end up too loose, allowing them to back off under stress, or too tight, causing them to deform, shear, or otherwise break.

During the lifespan of a torque wrench, it is bound to fall out of calibration. This doesn’t mean there’s anything wrong with the tool and a simple re-calibration will return the tool to delivering an accurate performance.

But businesses are often faced with a Goldilocks and the Three Bears scenario when wondering how often their torque wrenches need to be calibrated. Too often and you’ll be wasting money and causing disruption to processes. Not often enough and you could be producing faulty or defective products without realising, which you may be liable for if that product fails within the field.

So, what’s the ‘just right’ amount of torque wrench calibrations?

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Electrical testing equipment calibration

The accuracy of electrical testing equipment can drop over time. To avoid safety issues or process failures, it is critical to ensure that any electrical testing equipment used within your business is regularly calibrated.

There are no official British standards which state the frequency of electrical equipment calibrations. So unfortunately, there is no short answer to the question.

Every instrument will have a different calibration frequency requirement that comes recommended by the manufacturer. Combine that information with industry best practice which advises leaving no more than 12 months in between calibrations and you’ve got a good starting point.

However, there are also other scenarios where more frequent calibrations could be required:

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Industrial thermometers

Temperature measurement in industrial environments covers a wide variety of needs and applications. It can be carried out using a range of temperature testing equipment, from thermometers to temperature probes (including surface probes). These instruments can come with many styles of wiring configurations including from thermistors, thermocouples and RTD/PRT.

No matter what type of temperature measuring equipment you have, it’s critical to have it calibrated. Why? Because temperature plays an important role in the production of many products, and in some situations even a slight variance in the required temperature can not only affect the quality of the product but can also compromise its safety.

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