What makes a Master Calibrator?
Like with any service providers or companies in any industry, some do things much better than others. The calibration industry is no different, and there are average electrical calibrators and excellent or Master Calibrators of electrical instruments. There are a number of things to look out for when choosing who to trust with your electrical meter calibrations, and a number of questions to ask to ascertain if a calibration service provider is reputable and is going to give you the accuracy, quality and compliance you need. Below is a table to help you discern the good, bad and ugly of electrical meter calibration:
| Criteria | Master Calibrators | Some Other Calibrators |
| Calibrate to Manufacturer Specs | Yes | No |
| Calibrate to made-up or one-spec-fits-all specs | No | Yes |
| NATA Traceable Calibration Equipment | Yes | No |
| Accredited to ISO9001:2008 | Yes | No |
| Traceability Information on Cal Reports | Yes | No |
| Knowledgeable Technicians | Yes | No |
| Fast turn-around and great service | Yes | No |
| Easy access to copies of reports (online) | Yes | No |
| Calibrations cover a wide range of tests within all meter functions | Yes | No |
| Calibrations cover only a couple of ranges in a few of the functions | No | Yes |
