Ametek SEQUOIA Series - Current Measurement Subsystem

Sequoia Series 57
4.5 Current Measurement Subsystem
This subsystem programs the current measurement capability of the power source. Two measurement
commands are available: MEASure and FETCh.
• MEASure triggers the acquisition of new measurement data before returning a reading.
• FETCh returns a reading computed from previously acquired data.
Individual outputs of a three-phase source are specified by the setting of INSTrument:NSELect.
Subsystem Syntax
MEASure | FETCh
[:SCALar]
:CURRent
[:AC]? Returns ac rms current
:DC? Returns dc component of the current
:AMPLitude
:MAXimum? Returns peak current
:RESet Reset the peak current measurements
:CREStfactor? Returns current crest factor
:HARMonic
[:AMPLitude]? <n> Returns amplitude of the Nth harmonic of current
:PHASe? <n> Returns phase of the Nth harmonic of current
:THD? Returns % of total harmonic distortion of current
MEASure:CURRent[:AC]?
FETCh:CURRent[:AC]?
Phase Selectable
These queries return the ac component rms current being sourced at the output terminals if the voltage
mode is set for AC only, and will return the AC plus the DC component if the voltage mode is set for
ACDC.
Query Syntax MEASure[:SCALar]:CURRent[:AC]?
FETCh[:SCALar]:CURRent[:AC]?
Parameters None
Examples MEAS:CURR:AC? FETC:CURR?
Returned Parameters <NR2>
Related Commands INST:NSEL