In industries like pharmaceuticals, aerospace, automotive and motorsport – accuracy is everything.

Whether it’s monitoring gas pressure in a turbine or controlling gas flow during pharmaceutical production; pressure, vacuum and gas flow measurement and control instrumentation needs to perform accurately to ensure reliable results.

However, instruments can drift over time – and this is where regular calibration becomes critical.

UK-based manufacturer of high-precision pressure, vacuum and gas flow measurement solutions, Chell Instruments, have been supporting customers with calibration services since 1976.

Jamie Shanahan, Director at Chell Instruments, explains: “The accuracy of your equipment can be affected by many things – environment, usage, contamination or age. Even the most advanced and well-maintained instruments will drift over time, so regular calibration is critical to ensure they continue to perform as expected.”

From their ISO 17025 (UKAS-accredited laboratory No. 0687), Chell provide low-uncertainty calibration services for absolute and differential pressure, vacuum, gas flow rate, electrical and temperature.

The business also offers on-site calibration, which allows instruments to be calibrated in their working environment and attitude. This largely reduces errors caused by varying conditions, eliminates the risk of shipping them and reduces the time they are out of service.

“Ultimately, calibration is all about reducing uncertainties and the risks associated with errors in your data. At Chell, we help our customers maintain that confidence with our expert calibration services – which offers some of the lowest uncertainties available in the industry” adds Jamie.

Calibration is achieved by comparing an instrument against a known reference standard and quantifying any deviation. Adjustment can also be performed when necessary and available.

Without this process, the performance of the instrument over time is unknown, and errors can accumulate. This can impact safety, compliance, quality and overall performance of the process the instrument is used on.

The frequency of calibration depends on the application, but annual calibration is typically recommended by most manufacturers. For instruments used in more demanding or critical processes, calibration could take place every three to six months.

By combining low uncertainties with expert calibration services, Chell support customers in maintaining reliable, accurate measurements throughout the lifetime of their instrumentation.