Ametek Lx Series II Programming Manual Manuale Utente Pagina 58

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Programming Manual Lx \ Ls Series II
54
Query Syntax MEASure[:SCALar]:CURRent:HARMonic:THD?
FETCh[:SCALar]:CURRent:HARMonic:THD?
Parameters None
Examples MEAS:CURR:HARM:THD? FETC:CURR:HARM:THD?
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:CURRent:NEUTral?
FETCh:CURRent:NEUTral?
These queries return the dc current in the neutral output terminal of a three-phase AC source.
Query Syntax MEASure[:SCALar]:CURRent:NEUTral[:DC]?
FETCh[:SCALar]:CURRent:NEUTral[:DC]?
Parameters None
Examples MEAS:CURR:NEUT? FETC:CURR:NEUT?
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:CURRent:NEUTral:AC?
FETCh:CURRent:NEUTral:AC?
These queries return the ac rms current in the neutral output terminal of a three-phase AC source.
Query Syntax MEASure[:SCALar]:CURRent:NEUTral:AC?
FETCh[:SCALar]:CURRent:NEUTral:AC?
Parameters None
Examples MEAS:CURR:NEUT:AC? FETC:CURR:NEUT:AC?
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:CURRent:NEUTral:ACDC?
FETCh:CURRent:NEUTral:ACDC?
These queries return the ac+dc rms current in the neutral output terminal of a three-phase AC
source.
Query Syntax MEASure[:SCALar]:CURRent:NEUTral:ACDC?
FETCh[:SCALar]:CURRent:NEUTral:ACDC?
Parameters None
Examples MEAS:CURR:NEUT:ACDC? FETC:CURR:NEUT:ACDC?
Returned Parameters <NR3>
Related Commands INST:NSEL
MEASure:CURRent:NEUTral:HARMonic?
FETCh:CURRent:NEUTral:HARMonic?
These queries return the rms amplitude of the Nth harmonic of current in the neutral output
terminal of a three-phase AC source. The parameter is the desired harmonic number. Queries
sent with a value of 0 return the dc component. A value of 1 returns the fundamental output
frequency. Harmonic orders can be measured up to the fundamental measurement bandwidth of
the measurement system, which is 16 kHz. Thus, the maximum harmonic that can be measured
is dependent on the output frequency. Any harmonics that represent frequencies greater than 16
kHz are returned as 0.
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