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HP WaterSkis E1312A, WaterSkis E1412A manual FREQuency?

Models: WaterSkis E1412A WaterSkis E1312A

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:FREQuency?

MEASure:FREQuency? [<range>MINMAXDEFAUTO

[,<resolution>MINMAXDEF]] selects the frequency function and uses one range for all inputs between 3Hz and 300kHz.

Parameters


Parameter Name	Parameter Type	Range of Values	Default Units

<range>	numeric	3E+00	Hz

<resolution>	numeric	3E-04 3E-05 3E-06	Hz

Comments • The frequency function uses one “range” for all inputs between 3Hz and 300kHz. Querying the range will always return “3E+00”. A frequency measurement returns “ 0” if no input is applied.

•Range and resolution settings are listed below for the MIN, MAX, DEF and AUTO parameters and after a module reset (*RST).


PARAMETER	RANGE	RESOLUTION


MIN	3E+00	3E+06

MAX	3E+00	3E+04

DEFAUTO and module	3E+00	3E+05
reset (*RST)

104 Multimeter Command Reference

Chapter 3

Image 104

HP WaterSkis E1312A, WaterSkis E1412A manual FREQuency?

Contents

Contents Frequency and Period Measurement Errors Zeroauto ZEROAUTO? IMMediate Chapter Multimeter Command Reference Appendix a Appendix B Contents HEWLETT-PACKARD Warranty Statement Documentation History Manufacturer’s Name July 31 Jim White, QA Manager Business Reply Mail Page HP E1312A and HP E1412A Multimeter Module Setup Using This ChapterSetting the Module Address Switch Checking the Line Frequency Reference Setting the Line Frequency ReferenceInterrupt Priority Page Switch Module Analog Bus Connections Multimeter Functional ConnectionsVoltage Measurement Connections Wire Ohms Measurement Connections HP E1312A and HP E1412A Multimeter Module Setup Chapter Initial OperationFunction Prototype HP E1312A and HP E1412A Multimeter Module Setup Chapter DC Voltage Measurements Thermal EMF ErrorsMeasurement Tutorial Loading Errors dc volts Leakage Current Errors Thermoelectric VoltagesRejecting Power Line Noise Voltages Common Mode Rejection CMRNoise Caused by Magnetic Loops Noise Caused by Ground LoopsWire Ohms Measurements Resistance MeasurementsSet to 2-wire ohms function Making High-Speed DC and Resistance Measurements Power Dissipation EffectsErrors in High Resistance Measurements DC Current Measurement Errors True RMS AC MeasurementsCrest Factor Errors non-sinusoidal inputs Common Crest Factors ExampleLoading Errors ac volts Temperature Coefficient ErrorsAC Measurements Below Full Scale Function and Range Change Internal Offset CorrectionLow-Level Measurement Errors Voltage Measured = Vin2+ Noise2Making High-Speed AC Voltage or Current Measurements AC Current Measurement ErrorsFrequency and Period Measurement Errors Measurement Configuration AC Signal Filter DC Input ResistanceNumber of Power Line Cycles Nplc Resolution Chapter HP E1312A/E1412A Multimeter Application Information SENSeZEROAUTO Offonceon Math Operations CALCulate Subsystem Null Relative FunctionDB Measurements CONFfunctionStoring the dBm Reference Resistance Value DBm MeasurementsStoring the dB Reference Value HP E1312A/E1412A Multimeter Application Information Chapter Triggering the Multimeter TRIGgerSOURce EXTernal Checking the Trigger Source Bus Triggering Wait-for-Trigger StateExample Inserting a Trigger Delay Checking the Trigger Count Inserting a Trigger DelayExample Setting the Trigger Count Default Trigger Delays Checking the Sample Count Querying Delay Time Sample CountExample Setting the Sample Count HP E1312A and HP E1412A Multimeter Application Examples HP VTL Software VisaMEASure Command Making Multimeter MeasurementsMEASURE1 Source Code File MEASURE2 Source Code FileMEASURE3 Source Code File InitMEASURE4 Source Code File Synchronizing Multimeter With a Switch Module HP E1412A Multimeter and Switch Module SynchronizationSee -5 for the HP E1312A/E1412A Multimeter status system Set up the Multimeter Now set up the switch moduleCheck the multimeter for system errors Retrieve the readings from the multimeterMultimeter Status System Examples Synchopc Source Code File RST CLS *ESE Init OPCSynchmav Source Code File RST Init FETC?Loop End Loop Check the multimeter for system errorsLimittst Source Code File Device Configuration Programming ExamplePage HP E1312A/E1412A Multimeter Application Information Chapter Command Format Command TypesCommon Command Format Separator CommandAbbreviated Commands Implied Commands Linking Commands ParametersMultimeter Range and Resolution Tables PLCAC Current Range versus Resolution Scpi Command ReferenceAC Voltage Range versus Resolution Aborting a Measurement Related Commands INITiate, TRIGgerABORt Valid Math/Measurement Function Combinations CALCulateSubsystem Syntax AVERageAVERage? AVERageCOUNt?AVERageMAXimum? AVERageMINimum?DBREFerence DBREFerence?DBMREFerence DBMREFerence?FUNCtion FUNCtion?Parameter Summary Example Example Query the Calculate Math FunctionLIMitLOWer LIMitLOWer?LIMitUPPer LIMitUPPer?NULLOFFSet NULLOFFSet?STATe STATe?CALibration COUNt?LFRequency CommentsExample Query the Line Frequency Setting LFRequency?SECureCODE Example Enter a New Calibration Security CodeSECureSTATe SECureSTATe?STRing Example Set the Calibration State to UnsecuredSTRing? VALueVALue? Example Query the Calibration MessageZeroauto CALibration? CAL?CONFigure Command SettingDefault Settings for CONFigure Command by Function Function Range ResolutionCURRentAC Example Making AC Current MeasurementsCURRentDC Example Making DC Current MeasurementsResolutionMINMAXDEF selects the frequency function Example Making 4-Wire Ohms Measurements FRESistancePERiod Resolution Minmaxdef Example Making 2-Wire Ohms MeasurementsVOLTageAC Example Making AC Voltage MeasurementsVOLTageDC Example Making DC Voltage MeasurementsVOLTageDCRATio Sense HI and LO inputCONFigure? String ReturnedData POINts?FETCh? Example Transferring Stored Readings to Output BufferExample Placing Multimeter in Wait-For-Trigger State INITiateIMMediate Example Query the Input Impedance Mode INPutIMPedanceAUTO IMPedanceAUTO?MEASure CURRentAC? MEASCURRAC? 1,MAXCURRentDC? MEASCURRDC? .1,MAXFREQuency? FRESistance? MEASFRES? 1500,MAXPERiod? RESistance? VOLTageAC? VOLTageDC? VOLTageDCRATio? Example Making DC Voltage Ratio MeasurementsRST Condition OUTPTTLTn OFF OUTPutTTLTrgSTATe Example Query Voltmeter Complete Destination TTLTrgSTATe?Example Route Voltmeter Complete to Trigger Line READ? Example Transfer Readings Directly to Output BufferRST Condition Sampcoun Example Set the Sample Count SAMPleCOUNt Example Query the Sample Count SAMPCOUN?SENSe Zero Auto Offonceon AUTO? Example Query the Measurement Function FunctionExample Query the AC Current Measurement Range CURRentACRANGeCURRentACRANGe? Example Disable AC Current Autoranging Example Query the AC Current Autorange ModeCURRentACRANGeAUTO CURRentACRANGeAUTO?CURRentACRESolution CURRentACRESolution?CURRentDCAPERture CURRentDCAPERture?Example Set an Aperture Time of 16.7ms Example Query the Aperture TimeExample Query the DC Current Integration Time CURRentDCNPLCCURRentDCNPLC? CURRentDCRANGe CURRentDCRANGe?Example Set the DC Current Range to 3A Example Query the DC Current Measurement RangeExample Disable DC Current Autoranging Example Query the DC Current Autorange ModeCURRentDCRANGeAUTO CURRentDCRANGeAUTO?CURRentDCRESolution CURRentDCRESolution?DETectorBANDwidth DETectorBANDwidth? FREQuencyAPERtureFREQuencyAPERture? Example Query the Detector BandwidthFREQuencyVOLTageRANGe FREQuencyVOLTageRANGe?Example Set the Voltage Range for Frequency Measurements to Example Query the Measurement RangeExample Disable Autoranging Example Query the Autorange ModeFREQuencyVOLTageRANGeAUTO FREQuencyVOLTageRANGeAUTO?FRESistanceAPERture FRESistanceAPERture?Example Query the Integration Time FRESistanceNPLCFRESistanceNPLC? FRESistanceRANGe FRESistanceRANGe?FRESistanceRANGeAUTO FRESistanceRANGeAUTO?FRESistanceRESolution FRESistanceRESolution?Example Query the Resolution RST Condition Fresres 1mΩ 1E-03RST Condition 0.1 100ms Example Set the Aperture Time PERiodAPERturePERiodAPERture? PERiodVOLTageRANGe PERiodVOLTageRANGe?Example Set the Voltage Range for Period Measurements to Example Query the Period Voltage RangePERiodVOLTageRANGeAUTO PERiodVOLTageRANGeAUTO?RESistanceAPERture RESistanceAPERture?RESistanceNPLC RESistanceNPLC?RST Condition Resrang 1kΩ Example Change the Range RESistanceRANGeRESistanceRANGe? RESistanceRANGeAUTO RESistanceRANGeAUTO?Example Change the Resolution RESistanceRESolutionRESistanceRESolution? VOLTageACRANGe VOLTageACRANGe?VOLTageACRANGeAUTO? Example Disable AC Voltage AutorangingVOLTageACRANGeAUTO RST Condition 1E-04 Example Change the Resolution VOLTageACRESolutionVOLTageACRESolution? VOLTageDCAPERture VOLTageDCAPERture?VOLTageDCNPLC VOLTageDCNPLC?VOLTageDCRANGe VOLTageDCRANGe?VOLTageDCRANGeAUTO VOLTageDCRANGeAUTO?VOLTageDCRESolution VOLTageDCRESolution?Example Disable Autozero Example Query the Autozero ModePRESet QUEStionableENABleSTATus QUEStionableCONDition?QUEStionableENABle? QUEStionableEVENt?ERRor? Example Reading the Error QueueSYSTem VERSion?TRIGger RST Condition Trigcoun Example Set the Trigger CountExample Query the Trigger Count DELayExample Set the Trigger Delay DELay? DELayAUTOExample Query the Trigger Delay Example Disable Automatic Trigger DelayDELayAUTO? Example Query the Trigger Delay ModeExample Set the Sample Source Related Commands INITiate, READ?, MEAS?SOURce SOURce? Example Query the Trigger SourceIeee 488.2 Common Command Quick Reference Category Command Title DescriptionExample Enable All Error Events ESE and *ESE?ESR? SRE and *SRE? RST does not affectSTB? Scpi Command Quick Reference HP E1412A C-size 6½-Digit MultimetersData 67sMINMAX Zeroauto Offonceon HP E1312A and HP E1412A Multimeter Specifications DC CharacteristicsMeasuring Characteristics 60 Hz 50 HzOperating Characteristics AC Characteristics True RMS ACTrue RMS AC Voltage System Speeds 10 Frequency and Period Characteristics Accuracy Specifications ±% of reading 1Configuration Rates 14/sec Autorange Time General Specifications To Calculate Total Measurement Error Understanding the % of reading ErrorTotal Measurement Error Interpreting Multimeter Specifications Number of Digits and OverrangeAccuracy Configuring for High Accuracy Measurements DC Voltage, DC Current, and Resistance MeasurementsExecution Errors 112Program mnemonic too long 113Undefined header121Invalid character in number 123Numeric overflowTo -168Block data errors To -178Expression errors221Settings conflict 211Trigger ignored440Query Unterminated after indefinite response 350Too many errors330Self-test failed Cannot achieve requested resolution Cannot use overload as math referenceCal signal measurement out of range Cal signal frequency out of rangeCal secured Invalid secure codeNo cal for this function or range HP E1312A and HP E1412A Multimeter Error Messages Appendix B Measurement Speed and Accuracy Trade-offs Measurement Speed and Accuracy Trade-offs Appendix C HP E1312A/E1412 Special Function Avoid Function Changes Avoid Aperture Changes Minimize Number Command Response SessionsGeneral Guidelines for Increasing Measurement Speed Set Autozero to Once or OFF Turn Autorange Decrease Aperture Time or NPLCsSetting the Resolution INITFETCH?Index 197 Index 124 Index Index Error, 180 See online help Cycles, 27, 38, 123, 132, 140 Errors 130 Setting resolution, 15, 38 160 Index