BENNING IT 130
short instructions
- 15 -
2.2 TRMS voltage (V AC/DC), frequency and phase sequence (rotary
field)
1. Set function
V
2. Connection diagrams
Connection of "Commander" test plug (optional) and 3-wire test lead in single-phase system
Connection of the three-wire test cable and of the three-phase adapter (optional)
in a three-phase system
3. The measuring result can be stored by means of the "MEM" key.
Uln
..... Voltage between phase (L) and
neutral conductors (N)
Ulpe
... Voltage between phase (L) and
protective conductors (PE)
Unpe
.. Voltage between neutral (N) and
protective conductors (PE)
f
.......... Frequency
U12
.... Voltage between phases L1 and L2
U13
.... Voltage between phases L1 and L3
U23
.... Voltage between phases L2 and L3
1.2.3
... Clockwise phase sequence: OK
3.2.1
... Counter-clockwise phase sequence: not OK
f
.......... Frequency
