NF DP060LM Instruction Manual page 80

3. Basic Operation
2. In the [Target Phs] item, select the phase of which the measured value is to be displayed. For the
line voltage, select L1-L2, L2-L3, or L3-L1.
3. Close the window. For how to close the window, see 3.3.4.
  Operation procedures by using shortcuts
1. +
Press the SHIFT key to enter the shift state (the SHIFT LED illuminates). When you press the 2
key in the numeric keypad in the shift state, the phase is switched in the order of
L1  L2  L1-L2  L1 ... in the single-phase three-wire. In the three-phase, it is switched in the
order of L1  L2  L3  L1-L2  L2-L3  L3-L1  L1 ...
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Switches the target phase of which the measured value is displayed
PROGRAMMABLE AC POWER SOURCE