Metering & Calibration

Highest Metering Accuracy on the Market

The metering system is a key component in most industrial test equipment and should be specifically designed to address the application. Lexseco’s Flux Metering system is the result of decades of research in the field of core loss testing and advances in metering technology. It is an auto-ranging system, which measures actual lines of flux within the core at a very high sampling rate. It is certified traceable under the standards of the National Institute of Standards Technology (NIST) to be of the highest accuracy.

The system was designed specifically for core loss testing. It provides the most accurate metering available for testing a wide array of HP and frame characteristics. The accuracy specifications are presented as a percentage of the actual meter reading. The "% of reading' or % of rdg" is a very significant term when used in conjunction with instrumentation specifications. It indicates how far the meter's reported reading can vary as a percentage of the reported reading from the actual.
The "% of rdg" must be compared to a more standard term "% of full scale " or % of FS" in order to fully understand its significance. The term "% of FS' indicates how far the meter's reported reading can vary as a percentage of the largest reading the meter can display from the actual. Consider the following example of two watt meters (both meters have a five digit display and full scale = 10,000 watts) displaying 180 watts when testing a core:

  • Other Meters (with an accuracy specification of ±0.5%FS) The reading of 180W might actually be between 130 and 230W, a range of 100 watts.
  • Lexseco's Flux Meter (with accuracy specification of ±0.25% Rdg ±.2) The reading of 180W might actually be between 179.35 and 180.65 a range of only 1.3 watts.

Of all metering issues associated with the Core Loss Tester, the most difficult parameter to represent accurately is wattage, as it is derived from two separate measurements, voltage and current and their observed phase relationship. The above example illustrates how one specification can greatly affect your confidence in the reported results.

Calibration is easily addressed with our flux meter exchange program. The exchange metering system comes complete with traceable Certificate of Compliance certified in conformity with the National Institute of Standards and Technology (NIST). The Flux Metering System is a self-enclosed modular component, which provides for a quick removal and installation process. This program should help you conform to ISO 9001, EASA-Q, and other program standards that require regular and traceable calibration while maintaining your Core Loss Testing with little or no interruption.

The Flux Metering System Calibration Program

Exchange your current Flux Metering System for a recalibrated Flux Metering System with No Down Time. This program is designed to address calibration requirements for Lexseco Core Loss Testers with our unique Flux Metering System. The Flux Metering System is a self-enclosed modular component which provides for a quick removal and installation process. This program should help you conform to ISO 9000, EASA-Q, and other program standards that require regular and traceable calibration while maintaining your Core Loss Testing with little or no interruption.

  • Designed to address calibration requirements for maintaining the high testing accuracy for your Lexseco Core Loss Tester.
  • Self-enclosed modular metering system which provides for a quick removal and installation process.
  • The recalibrated metering system comes complete with Certificate of Compliance certified in conformity with the National Institute of Standards and Technology (NIST).
  • Will help you conform to ISO 9000, EASA-Q, and other program standards that require regular and traceable calibration while maintaining your Core Loss Testing with little or no interruption.
  
4740 Allmond Ave, Louisville, Ky, 40209
Tel:(502) 367-4393  ·  Fax:(502)238-1001
sales@lexseco.com