HT9023
EN - 26
2. Press
F1
(
Mod
) to open the drop-down menu shown on the
screen nearby and select the “
AC
” or “
AC+DC
” option with
the same key
3. Press
F4
(
OK
) to confirm.
The instrument goes into AC
current measurement mode
4. Press
F4
(
Zro
) to perform the zero of value at display in
order to delete
the residual magnetization
Mod
Har Fnc OK
A C < 1 0 . 5 H z
-
0 . 0
A
17/01 – 18:34:23
5. Connect the cable to the middle of the clamp jaws, in order to get accurate
measurements (see Fig. 10 – left part). Use the marks as a reference (see Fig. 2)
6. The screen shows an example of AC current measurement.
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.)
Mod Har Fnc Zro
A C 5 0 . 0 H z
1 0 0 . 0
A
17/01 – 18:34:23
7. Press
F3
(
Fnc
) to open the drop-down menu shown on the
screen aside. At each subsequent pressure of key
F3
, the
cursor will scroll through the available items, as follows:
Max
: it constantly displays the maximum value of AC +
DC current
Min
: it constantly displays the minimum selected value of
AC + DC current
Cr+
: it constantly displays the maximum positive crest
value
Cr-
: it constantly displays the minimum negative crest
value
RST
: (RESET) it deletes all stored Max, Min, Cr+ and Cr-
values and re-start with a new measure
Esc
: it goes back to a normal measuring mode
Mod Har
Fnc
OK
A C
1 0 0 . 0
A
17/01 – 18:34:23
CAUTION
Always carry out current zeroing before clamping the cable
The measurement of the 4 Max, Min, Cr+ and Cr- values is
simultaneous, regardless of the one displayed.
8. Pressing
F4
(
OK
), the selected item is confirmed. Nearby an
example of measurement with active Max function. The
display shows the active function.
Mod Har Fnc Zro
A C 5 0 . 0 H z
M a x
1 2 0 . 0
A
17/01 – 18:34:23
9. For the use of HOLD and backlight features see § 4.4
AC
DC
AC+DC
Help
Max
Min
Cr+
Cr-
RST
Esc