Measurements on Three-Phase Circuits
The branches or legs of three phase electrical circuits are typically labeled in any of the
following conventions:
• A, B and C
• L1, L2 and L3
• R, S, and T
They are referred to as R, S and T in this manual and on the meter.
Three-Phase Circuits: Settings Table for Voltage and Frequency
Type of
Measurement
Circuit
Voltage or
3ø3W or
Frequency
3ø4W
Three-Phase Circuits: Voltage or Frequency Measurement
Selector
Icons
Red Lead Black Lead
Setting
Displayed Connection Connection Location
Hz V
Hz and V
R, S or T
CMP-200
Clamp
any other
phase (or
N/A
neutral on
3ø4W only)
15