HT HT9020, Руководство пользователя

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HT9020
EN - 13
4. Connect red cable to input lead
V

and black cable to input lead
COM
then position
the leads to the desired points of the circuit under test (see Fig. 6)
5. The screen shows an example of AC voltage measurement.
The instrument allows the evaluation of possible DC
components overlapped on a generic alternate waveform
(AC+DC) signal and this can be very useful for the
measurements on impulsive signals typically of no-linear
loads (e.g: welders, electric ovens, etc)
Mod Har Fnc
A
C 5 0 . 0 H z
2 3 0 . 1
V
6. 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 the
measured AC+DC Voltage

Min
: it constantly displays the minimum value of the
measured AC+DC Voltage

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 from
Max/Min/Cr+/Cr-
and return to
normal measuring mode
Mod Har Fnc OK
A C
2 3 .
V
CAUTION
Note: the measurement of the 4 Max, Min, Cr+ and Cr- values is
simultaneous, regardless of the displayed value.
7. By pressing
F4
(
OK
), the selected item is confirmed. Nearby,
an example of measurement with active Max function.
Mod Har Fnc
M a x A C 5 0 . 0 H z
2 3 1 . 5
V
8. For the use of HOLD and backlight features see § 5.1
Max
Min
Cr+
Cr-
RST
Esc