HP Extech 380976 - Manual (Page 8)

380976 V3.2 4/11 8
3. The power clamp will process these two sets of data (W
L12
, W
L23
), and show the result on the
LCD. The W
L123
symbol will be shown to indicate 3φ3W power. The 3φ3W power (in watts) is
stored in the meter memory.
4. To read a single data record, press the “HOLD” key to select desired W
L12
, W
L23
or W
L123
display then press the “RANGE” key to select KW+HP (Horse Power), KW+PF (Power
Factor), KW+KVAR, KVA+θ(Phase Angle) or A+V.
5. W
3 φ 3W
= W
RS(L1L2)
+ W
TS(L3L2)
W KVAR W W K W KVA 3 3
2
3 3
2
3 3 φ φ φ + =
PF
KW
KVA
W
W
W
3 3
3 3
3 3
φ
φ
φ
=
6. Set the rotary switch to another position to exit this mode and clear the stored data.