Ht-instruments HT9022 Manual de usuario descargar pdf (Pagina 19)

HT9022

EN - 17

5.3.2.2.1. Key F4 “Fnz” in AC+DC voltage measurement

While measuring AC+DC voltage, press key F4 (Fnz) to open

the drop-down menu shown on the screen to the side. At each

subsequent pressure of key F4, the cursor will scroll through the

available items, as follows:

• Max: it constantly displays the maximum RMS value of

Voltage;

• Min: it constantly displays the minimum RMS value of

Voltage;

Mod Par OK Fnz

AC 50.0 Hz

220.5 V

19/01-17:00:00

• Cr+: it constantly displays the maximum positive crest value;

• Cr-: it constantly displays the minimum negative crest value;

• Rst: it deletes all stored Max, Min, Cr+ and Cr- values;

• Esc: it goes back to a normal measuring mode.

By pressing key F3 (OK), the selected item is confirmed.

To the side, an example of measurement with active Max

function. The display shows the active function.

Mod Par Fnz

Max AC 50.0 Hz

220.5 V

19/01-17:00:00

5.3.2.3. Voltage harmonics

The screen shows an example of Voltage Harmonics

measurement.

By pressing keys F1 (◄) or F3 (►), it is possible to move the

cursor over the graph and to select the harmonic to be

measured.

It is possible to measure up to the 25

harmonic, for

fundamental frequencies between 10Hz and 75Hz, and up to the

harmonic for fundamental frequencies between 75Hz and

400Hz.

◄

Par

►

Fnz

H01 215.0 V

ThdV 10.0 %

19/01-17:00:00

5.3.2.3.1. Key F4 “Fnz” in Voltage Harmonics measurement

While measuring Voltage Harmonics, press key F4 (Fnz) to

open the drop-down menu shown on the screen to the side. At

each subsequent pressure of key F4, the cursor will scroll

through the available items, as follows:

• Max: it constantly displays the maximum RMS value of the

selected current harmonic;

• Min: it constantly displays the minimum RMS value of the

selected current harmonic;

• Abs: it displays the absolute value of the harmonics in Volts;

◄

Par OK Fnz

H01 215.0 V

ThdV 10.0 %

19/01-17:00:00

Max

Min

Abs

Rst

Esc

Max

Min

Cr+

Cr-

Rst

Esc

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 55 56

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Ht-instruments HT9022 Manual de usuario Pagina 19

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