To check whether an instrument meets the minimum accuracy levels, you need to use calibrators that measure the instrument’s accuracy as per the given specifications.

Calibrators come in different types categorized by the function they perform and technology they use. For example, you can choose from calibrators for instruments that measure pressure, flow or temperature. Moreover, you will also find different types of calibrators for electrical and electronic equipment.

You can search for a calibrator manufacturer that provides single function calibrators. For example, you can opt for humidity calibration equipment if you use only humidity testers. Additionally, you can opt for multifunction calibrators considering your future requirements.

Some important parameters you must consider before you select calibrators are:

1. The type of calibrator you require: hand-held, portable, fixed or modular
2. The measuring parameters, such as acceleration, vibration, force or load
3. The type of process you will follow for the measurements

Action Steps
The best contacts and resources to help you get it done

Buy calibrators from reliable calibrator manufacturers

Once you understand your requirements, evaluate calibrators available in the market.

I recommend: Beamex is a manufacturer that sells a multifunction calibrator. EdgeTech is a manufacturer that sells RH calibration equipment and humidity calibration equipment. You can buy pressure calibrator and RPM4 high-end pressure monitor calibrator from DH Instruments. Rotek Instrument Corp. is a manufacturer that sells DC calibrator and current calibrator.

Buy calibrators from calibrators distributors

Compare different products based on their features and prices at distributors' websites.

I recommend: Tequipment.NET is a distributor from whom you can buy various types of calibrators like pressure calibrator, loop calibrator, DC calibrator and current calibrator. Test Equipment Depot is a distributor that supplies new and used calibrators of different companies. Transcat is a distributor who has different types of calibrators including dry block calibrators for sale.

Use calibration services from calibrator service providers

If your calibration needs are not permanent, try using calibration service providers to certify your products according to required accuracy standards.

I recommend: Cal Tec Labs is a service provider for calibration and certification of all types of dimensional, process and electronic equipments. You can go to Inspec for the calibration, repair, up-gradation and certification of different measuring instruments and machines. Palmer Wahl Instrumentation Group is another well-known service provider that offers calibration services and provides certificates.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Take proper care while handling the calibrators, as they are very sensitive to the variations in temperature, dust and surrounding conditions.
• •  Get the calibrators equipment serviced and calibrated as per the manufacturer's guidelines from an authorized and certified calibration service provider.