6.5 Digit Digital Multimeter
A proficiency test for 6.5 digit digital multimeters (DMMs) based on an HP 34401A as the travelling standard is proposed. This is a commonly used DMM in NZ and most of the top-end calibration labs can carry out such a calibration.
It is expected that the calibration should cover all ranges of the following functions:
- dc voltage and current,
- ac voltage and current,
This profiency test will be modeled on a similar exercise used in Europe. Version 2 of the EURAMET Guide is a useful reference document: