HT HT9020, User Manual

Page: 33 / 52

HT9020
EN - 31
4. Press
F4
(
Zro
) to perform the zero of value at display
Mod Par Fnc Zro
A C
0 . 0 0
k W
5. Connect red cable to input lead
V

and black cable to input lead
COM
then perform
the connection as indicated in Fig. 12 depending on the type of system under test. Put
the phase cable into the clamp jaws respecting the direction of current indicated by the
arrow (see Fig. 12). Connect the cable to the middle of the clamp jaws, in order to get
accurate measurements. Use the marks as a reference (see Fig. 2)
6. The value of AC powers (active , reactive and apparent) is
displayed. The instrument allows the evaluation of possible
DC components overlapped on a generic alternate waveform
signal (AC+DC) and this can be very useful for
measurements on impulsive signals typically of no-linear
loads (e.g.: welders, electric ovens, etc.)
Press
F2
(
Par
) and select with the same key the “
PF-DPF
”
option for the power factor (PF) and Cosphi (DPF)
measurement. Confirm with
F4
(
OK
). The following screen is
displayed:
Mod Par Fnc OK
D C
1 . 6 0
k W
1 P
7. The screen shows an example of PF and DPF measurement.
The “
i
” and “
c
” symbols mean respectively the inductive or
capacitive nature of the load.
Mod Par Fnc Zro
A C 5 0 . 0 H z
P F 0 . 9 4 i
D P F 0 . 9 4 i
1 P
8. Press
F2
(
Par
) to open the drop-down menu shown on the
screen aside and select the “
Volt/Curr
” option for the
voltage and current measurement. Confirm with
F4
(
OK
).
The following screen is displayed.
Mod Par Fnc OK
D C
1 . 6 0
k W
1 P
P-Q-S
PF-DPF
Volt/Curr
Harm Voltage
Harm Current
Energy
P-Q-S
PF-DPF
Volt/Curr
Harm Voltage
Harm Current
Energy