Ametek SEQUOIA Series

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66 Sequoia Series

MEASure:VOLTage:HARMonic:THD?

FETCh:VOLTage:HARMonic:THD?

Phase Selectable

These queries return the percentage of total harmonic distortion and noise in the output voltage.

Query Syntax MEASure[:SCALar]:VOLTage:HARMonic:THD?

FETCh[:SCALar]:VOLTage:HARMonic:THD?

Parameters None

Examples MEAS:VOLT:HARM:THD? FETC:VOLT:HARM:THD?

Returned Parameters <NR2>

Related Commands INST:NSEL

Main Page

Table of Contents7
Introduction10
Documentation Summary10
External References10
Introduction to Programming11
Introduction to SCPI14
Conventions Used in this Manual14
The SCPI Commands and Messages14
Figure 2-1 : Partial Command Tree15
Using Queries17
Structure of a SCPI Message17
Figure 2-2: Command Message Structure18
SCPI Data Formats21
System Considerations and Interface Setup22
Assigning the IEEE-488 Address22
IEEE-488 Controllers22
RS232C Interface23
Table 3-1. RS-232C Interface Connector Pinout23
Figure 3-1: DB25 to DB9 Adaptor Pinout25
USB Interface26
LAN Interface Option29
Figure 3-2: GUI Interface Settings for Use of USB Port29
Figure 3-3: Pinging AC Source LAN IP Address31
SCPI Command Reference33
Introduction33
Calibration Subsystem33
Instrument Subsystem48
Array Measurement Subsystem50
Current Measurement Subsystem57
Frequency Measurement Subsystem61
Phase Measurement Subsystem61
Power Measurement Subsystem62
Voltage Measurement Subsystem64
Output Subsystem67
Source Subsystem - Current73
Source Subsystem - Power (Eload Power Programming)76
Source Subsystem -Impedance (Eload RLC Programming)77
Source Subsystem - Frequency78
Source Subsystem - Function81
Source Subsystem - Synchronize (Eload Mode)83
Source Subsystem - Program (Eload Mode)84
Regenerate Subsystem - Grid Simulator Mode85
Source Subsystem - Limit88
Sense Subsystem - Sweep90
Source Subsystem - List92
Source Subsystem - Mode100
Source Subsystem - Phase101
Source Subsystem - Ponsetup103
Source Subsystem - Pulse111
Table 4-1 : Pulse:hold = Width Parameters112
Table 4-2 : Pulse:hold = Dcycle Parameters112
Source Subsystem - Voltage114
Status Subsystem Commands120
System Commands125
Trace Subsystem Commands136
Trigger Subsystem138
Common Commands144
Cls144
Ese145
Esr145
Idn146
Opc146
Opt147
Psc148
Rcl148
Rst149
Table 5-1 : *RST Default Parameter Values149
Sav150
Sre150
Stb150
Trg151
Wai151
Tst152
Table 5-2 : Self-Test Error152
Programming Examples154
Introduction154
Programming the Output154
Coupled Commands160
Programming Output Transients161
Figure 6-1: Output Transient System162
Triggering Output Changes166
Figure 6-2: Transient Trigger System Model166
Acquiring Measurement Data169
Figure 6-3: Measurement Acquisition Trigger Model173
Controlling the Instantaneous Voltage and Current Data Buffers175
Figure 6-4: Pre-Event and Post-Event Triggering176
Trigger System Summary177
Figure 6-5: Trigger System Block Diagram177
Status Registers178
Power-On Conditions178
Operation Status Group178
Table 7-1: Operation Status Register178
Figure 7-1: Status System Model179
Table 7-2: Configuration of Status Register180
Questionable Status Group181
Standard Event Status Group181
Status Byte Register181
Table 7-3: Questionable Status Register181
Examples182
SCPI Command Completion183
Option Commands184
Introduction184
Iec 1000-4-11 (-411)185
Iec 1000-4-13 (-413)189
Rtca/Do-160D (-160)201
Mil-Std 704E (-704)208
Airbus ABD0100.1.8 Test Option (-ABD)210
Airbus A350 ABD0100.1.8.1 Test Option (-A350)210
Airbus AMD24 Test Option (-AMD)210
Boeing B787-0147 Test Option (-B787)210
Watt Hour Meter (-WHM)210
Appendix A: SCPI Command Tree213
Appendix B: SCPI Conformance Information218
Appendix C: Error Messages219
Table 8-1 : Error Messages223
Index225

Ametek SEQUOIA Series - Page 66

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