Power or Torque Calibration

Power/ Torque Calibration

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Calibration definition

One of the main purposes of calibration is to make instrument’s function properly and give accurate measures.   Thus, calibration plays a vital role to keep instruments accurate. The process of calibrating an instrument involves setting it up such that it can produce results for samples that are within a reasonable range. A key component of instrumentation design is eliminating or reducing conditions that lead to faulty measurements.

The calibration process often entails using the instrument to test samples of one or more known values called “calibrators,” however the precise process may vary depending on the device.

You can use the findings to establish a connection between the instrument’s measurement method and the measured values. The method essentially “trains” the instrument to produce more precise data than it would otherwise. When samples of unknown values are examined while one uses the products, the instrument can then produce more accurate results.

To establish the correlation at particular places within the instrument’s operational range, using only a small number of calibrators one can carry out calibrations. Although it may be preferable to employ a large number of calibrators to create the calibration relationship, or “curve,” the effort and time required to prepare and test a large number of calibrators may be more than the attaining level of performance. Practically speaking, the desired degree of product performance and the work required to complete the calibration need to establish a trade-off between them. The instrument will operate at its best because the recommended technique essentially “zeroes out” the inherent instrument error at these locations when calibration use the intermediate points listed in the manufacturer’s performance criteria.


Torque Calibration overview

Due to regular use and time, torque wrenches inevitably lose their calibration. To ensure torque accuracy, you should calibrate tools on a regular basis. Calibration of hydraulic power packs’ torque wrenches and pressure gauges increases tool efficiency while also ensuring tool safety. In this blog, we are going to discuss the significance of calibrating and the time frame.

Calibration ensures that the torque wrenches accurately deliver the required amount of torque to secure a bolt. Similar to this, you need to calibrate power pack pressure gauges to verify that the torque wrenches are receiving the proper pressure as the gauge are showing.

Non-calibrated tools can result in overtightening or under tightening of fasteners, which can lead to the deformation or breakage of the bolt. In a nutshell, calibration ensure that instruments continue to operate as you are desiring and do not harm applications.



Usable areas of torques

People often use these equipment throughout a wide range of industries, including construction, automotive, household maintenance and repairs.

One should always use these tools in tightening and securing screws and bolts. With the help of these instruments, the user can gauge the force that needs to apply to fasteners to make sure it complies with the job’s necessary standards.

For instance, in the automotive sector, it is crucial that the proper amount of torque is there to each fastening on a vehicle to ensure the safety of everyone who comes into touch with it.


The reason to calibrate

In general, torque wrenches will produce accurate torque output one can use it properly and with the proper value set. People do not, however, aware that torque wrenches have moving parts that deteriorate over time. The risk of damage also rises because mechanics expose them on-site to harsh circumstances. For the safety of the tool, a calibration error of greater than +/- 5% is not acceptable range.

The following are a few causes for calibrating:

  • To determine whether the gadget is producing correct results.
  • To do a quality check on the hydraulic power pack and torque wrench to make sure there is no degraded parts.
  • To guarantee the desired performance levels when in use.
  • A new product’s testing.
  • Watch out for worker, equipment, and plant safety.
  • To adhere to governmental, organizational, and industry norms.


When and how often to calibrate?


Every tool needs calibration at different intervals of time since different applications and jobs call for varying torque wrenches. This implies that scheduling the calibration of all tools at the same time is not possible. While some advise calibrating equipment once a year, others advise doing it twice. But it all relies on how frequently you use your tools and how you follow the ISO QC methodology.

Consider the following guidelines to determine when to calibrate:

  • Follow the manufacturer’s advice to determine the recommended frequency of calibration.
  • Calibrate the tools to ensure that they produce precise torque output before beginning any new projects or large-scale activities.
  • Replacement of parts after repairing.
  • To adhere to national and international criteria for plant certification.
  • Arrange for calibration services if tool usage is frequent.
  • Calibrate at least yearly for safe functioning.


How can SCS help?

With the help of SCS’s in-house tool calibration facility, you can improve your tool’s dependability and maximize its performance. Our in-house calibration lab can guarantee that we meet the needs of our clients. Our well-equipped lab and highly skilled staff can calibrate manual, hydraulic, pneumatic, or electric torque wrenches up to 20,000 Nm.

This article should address all of your concerns regarding calibration. We are confident that the aforementioned tips will improve your calibration planning and lengthen the life of your gear.