APM SP-300 Series, Руководство пользователя

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3. Press the [ESC] key to return to the previous screen then press the ‘Trigger’ soft key to load
the settings.
4. Press the ‘Trigger’ soft key to execute the file, and the ‘Trigger’ will change to ‘Stop’.
F start = start frequency.
F end = end frequency.
Level = amplitude in % of nVac.
Time = time duration from F start to F end.
nVac = fundamental voltage.
nF = fundamental frequency.
Inter-harmonics allow the user to insert a frequency component sweep at the output at a fre-
quency that is not harmonically related to the fundamental frequency. This function is useful
for performing immunity tests.
2. Inter-harmonics
1. Press the ‘Inter-harmonics’ soft key to display the Inter-Harmonics screens shown below.
2. Press the ‘Edit’ soft key to set the inter-harmonics parameters.
Save : to save Inter-Harmonic settings to the assigned memory location for quickly recalling at
a later time. If you do not save the current Inter-Harmonics file, it will be lost after the unit is
turned off.
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Menu Operation
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The harmonics measurement function measures total harmonic distortion (THD), DC voltage
and current and fundamental voltage and current for output setting of 50Hz or 60Hz. Thus,
this function is useful for commercial and industrial development and test applications.
3. Harmonic Measure
1. Press the ‘Harmonic Measurement’ soft key.
2. Press the ‘Edit’ soft key, enter the desired source values as follows:
Source : select V or I to measure voltage or current.
F_fund = 50Hz or 60Hz.
TIMES = Single or Continue. Single means one measurement is taken when the ‘Trigger’ soft
key is pressed. Continue means the harmonic measurement runs till the ‘Stop’ soft key is pre-
ssed. Once pressed, it changes to Stop.
3. Press the [ESC] key to return to the previous screen. The measurement is started using the
‘Trigger’ key.
Menu Operation
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