vi
Contents
14 Maintenance and Service 189
14.1 Cleaning and Storage ..................................... 189
14.2 Repair and Servicing ...................................... 190
14.3 Instrument Disposal ........................................ 192
Appendix 195
Power Measurement by the 2 Power-Meter Method and
U3/I3 Measurement Theory (3P3W2M mode) ......... 195
Headers of Output Data ........................................... 197
Harmonic Phase Angles .......................................... 201
Output Data .............................................................. 203
Error Messages ........................................................ 207