EURAMET Key International Comparison of AC-DC Current Transfer Standards

Project Description

In order to link the National Metrology Institutes organised in EURAMET to the Key International Comparison of AC-DC Current Transfer Standards CCEM-K12, the corresponding RMO key comparison EURAMET.EM-K12 is organised by the Federal Office of Metrology and Surveying, Austria (BEV) as the pilot laboratory.

The AC-DC difference of each travelling standard should be measured at:

Nominal currents:

10 mA (standard is a Planar Multi-Junction Thermal Converter)
5 A (standard is a coaxial shunt connected in parallel to the PMJTC)

at the following frequencies: 10 Hz, 55 Hz, 1 kHz, 10 kHz, 20 kHz, 50 kHz, 100 kHz.

Declaration of a CCEM or RMO Comparison

Final Report 2017-08-22

The comparison has been completed and results are published in the KCDB.

The technical protocol can be downloaded here>>