Appendix A Technical Specifications Measurement Specifications
Branch Feeder Monitor 136_Installation Operation and Manual 63
A.4 Measurement Specifications
Class 1.0 under conditions as per IEC 62053-
21:2003
Class 0.5S under conditions as per NMI M6-1
Class 0.5 under conditions as per ANSI
xxC12.20:2002
1
@ 80% to 115% of voltage FS and 1% to 100% of current FS
FSV - voltage full scale
FSI - current full scale
Notes
1. Accuracy is expressed as (percentage of reading + percentage of full scale) 1 digit. This does not
include inaccuracies introduced by the user's potential and current transformers. Accuracy calculated at
1-second average.
2. Specifications assume: voltage and current waveforms with THD 5% for kvar, kVA and PF; reference
operating temperature: 20C - 26C.
3. Measurement error is typically less than the maximum error indicated here.
4. Accuracy of the device without HACS complies with IEC 62053-22 class 0.5S standard