Transitioning from manual to digital calibration

MANUAL CALIBRATION, often involving the use of screwdrivers to make fine adjustments, has long been the standard in industries where precise measurements are critical. 

However, manual calibration can be time-consuming. Adjustments need to be made incrementally, readings checked and rechecked and every small alteration must be verified before proceeding to the next step. While experienced engineers can manage this effectively, the process is not immune to human error and with increasing demands on time and resources, it's becoming harder to justify this slower approach.

How it can be improved

As technology advances, digital calibration has emerged as a more efficient alternative. By using USB-connected devices and calibration software, engineers can now monitor and adjust settings in real time, with automated processes reducing the need for repetitive adjustments.

One key benefit of digital calibration is the ability to obtain instant feedback, allowing engineers to make accurate adjustments on the fly. Real-time data collection ensures that measurements are consistent and reliable, significantly reducing the chances of error that may occur with manual calibration. 

Mantracourt’s In-Line Amplifier (ILA), which converts signals from strain gauges and load cells into a stable 4-20 mA output, offers a unique perspective on this evolution. As it supports both manual and digital calibration, we can compare the two methods side by side to see how each process differs.

In a manual calibration, engineers would typically use a screwdriver to adjust the gain and offset potentiometers while taking repeated measurements to ensure accuracy. The process involves trial and error, with each adjustment needing to be rechecked. Depending on the complexity of the system, this could take many hours, particularly for large-scale installations.

In contrast, digital calibration with the ILA is handled through a USB connection to a laptop using the ILA Toolkit. This allows engineers to monitor the calibration in real time, quickly making adjustments and applying automated calibration routines. The result is a process that is not only faster but also less prone to human error. Instead of making small manual tweaks and rechecking measurements, engineers can use the software to instantly apply and verify adjustments, saving both time and effort.

It’s not as hard as it seems

One common misconception is that switching to digital tools requires significant training or expertise. However, modern calibration software, like the ILA Toolkit, is designed to be user-friendly and intuitive, meaning engineers can quickly get up to speed. While digital gain and offset potentiometers operate in 256 defined steps - unlike the limitless adjustment of traditional potentiometers - this level of precision is sufficient for most use cases, enabling engineers to achieve highly accurate calibrations. Many digital tools are also designed to integrate smoothly into current workflows, offering flexibility and ease of use.

You can find out more and download the toolkit for free here: tinyurl.com/yacdafk8

For more information: 

www.mantracourt.com

Tel: +44 (0) 1395 234000