Users Want More Accurate Calibrators
Control's readers who use calibrators report they want greater accuracy and more documenting capabilities, according to surveys conducted in March 2010 and April 2012.
For example, almost 37% of respondents in 2010 were happy with 1% full-scale accuracy, but only 30% were happy with 1% in 2012. Also, those who wanted 0.5% of reading increased to 15.5% in 2012 from 8.5% in 2010.
For calibration interval, "manufacturer's recommendation" was the interval of choice for 44.6% of respondents, which was up from 36% in 2010. Correspondingly, historical trend analysis was down from 34.6% in 2010 to 25.7% in 2012. A "uniform calibration interval for all instruments" stayed the same at about 30%.
In addition, multi-parameter field calibrators dropped from 54% in 2010 to 45% in 2012, while use of documenting calibrators increased from 33% to 36.3% during the same period. Meanwhile, vendor-specific calibrators dropped from 51% to 40.2% during the past two years, while single-parameter calibrator use declined from 66% to 59.8%, and use of calibration software for PC or laptops stayed the same.
Also, respondents who manually record calibration results dropped to 51.5% in 2012 from 75% in 2010. Unsurprisingly, use of documenting calibrators came in at 48.5% this year, which was up from 24% in 2010.