Phenomenon: 194 series Multifunction Power Meter, once cabled and connected, is seen to give an incoherent Power factor and CosΦ reading (-0.01 or similar).
This is again a current transformer and voltage phase connection error phase A, must correspond to the current transformer installed in phase A; phase B, must correspond to the current transformer installed in phase B; and phase C, must correspond to the current transformer installed in phase C.
This connection is clearly shown on the back of the meter. If wiring loops cannot confirm primary side phase sequence, please use any valid phase sequence tester to check wiring access meter. Rewiring the error cable can solve this problem.
Phase sequence tester
