Index | HP WaterSkis E1312A, WaterSkis E1412A guide

F(continued)

Functional Connections (continued) current measurement, 22 frequency measurement, 19 measurement, 19– 22

period measurement, 19 voltage measurement, 20

voltage ratio (Vdc) measurement, 20

G

Gate Time, 128

General Information, 15

General Specifications, 179

Ground Loops Noise, 28

Group Execute Trigger, 46, 48, 160

H

High Speed

ac current measurements, 36 ac voltage measurements, 36 resistance measurements, 31

HP VEE Programming Example, 64 HP-IB

end-or-identify (EOI) signal, 98 group execute trigger, 46, 48, 160

I

Idle State (trigger system), 45 *IDN?, 164

IEEE 488.2 Common (*) Commands *CLS, 163

*ESE, 163 *ESE?, 163 *ESR?, 164 *IDN?, 164 *OPC, 164 *OPC?, 165 *RST, 165 *SRE, 165 *SRE?, 165 *STB?, 166 *TST?, 166 *WAI, 166

command reference, 162– 167 IMMediate Trigger Source, 46– 47, 160 Impedance Input, 100

Implied Commands, 68

Increasing Measurement Speed, 193– 198 Indicators, front panel, 18

Induced Voltages, 28

Initial Operation, 22

INITiate Subsystem, 99

INITiate[:IMMediate], 99

Input

bias current, 26

dc input resistance, 37

impedance, 100

terminals, 18

INPut Subsystem, 100

INPut:IMPedance:AUTO, 100

INPut:IMPedance:AUTO?, 100

Integration Time, 27, 39

2-wire resistance, 139

4-wire resistance, 131

NPLC, 123, 132, 140, 148

querying, 122– 123, 131– 132, 136, 139– 140, 147– 148

setting, 122– 123, 131– 132, 136, 139– 140, 147– 148

versus resolution, 70– 71 vs. dc current resolution, 70 vs. dc voltage resolution, 70

Internal

memory, 97– 98 triggering, 46– 47, 160

Interpreting Multimeter Specifications, 182– 183 Interrupt Priority, 17

L

Leakage Current Errors, 26 LIMit function, 77

Line Frequency, 79– 80 Line Frequency Reference

checking, 17 setting, 17

Linking Commands, 69 Loading Errors

ac voltage, 34 dc voltage, 26

Logical Address Switch, 16 Low-Level

commands, 101 measurement errors, 35

204 Index

Image 204

HP WaterSkis E1312A, WaterSkis E1412A manual Index

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 Chapter Setting the Module Address Switch Setting the Line Frequency Reference Interrupt PriorityChecking the Line Frequency Reference Page Switch Module Analog Bus Connections Multimeter Functional Connections Voltage Measurement Connections Wire Ohms Measurement Connections HP E1312A and HP E1412A Multimeter Module Setup Chapter Initial Operation Function Prototype HP E1312A and HP E1412A Multimeter Module Setup Chapter Thermal EMF Errors Measurement TutorialDC Voltage Measurements Loading Errors dc volts Leakage Current Errors Thermoelectric Voltages Rejecting Power Line Noise Voltages Common Mode Rejection CMR Noise Caused by Magnetic Loops Noise Caused by Ground Loops Wire Ohms Measurements Resistance Measurements Set to 2-wire ohms function Power Dissipation Effects Errors in High Resistance MeasurementsMaking High-Speed DC and Resistance Measurements DC Current Measurement Errors True RMS AC Measurements Crest Factor Errors non-sinusoidal inputs Common Crest Factors Example Loading Errors ac volts Temperature Coefficient ErrorsAC Measurements Below Full Scale Function and Range Change Internal Offset Correction Low-Level Measurement Errors Voltage Measured = Vin2+ Noise2 AC Current Measurement Errors Frequency and Period Measurement ErrorsMaking High-Speed AC Voltage or Current Measurements Measurement Configuration AC Signal Filter DC Input Resistance Number of Power Line Cycles Nplc Resolution Chapter HP E1312A/E1412A Multimeter Application Information SENSeZEROAUTO Offonceon Math Operations CALCulate Subsystem Null Relative Function DB Measurements CONFfunction DBm Measurements Storing the dB Reference ValueStoring the dBm Reference Resistance Value HP E1312A/E1412A Multimeter Application Information Chapter Triggering the Multimeter TRIGgerSOURce EXTernal Checking the Trigger Source Bus Triggering Wait-for-Trigger State Checking the Trigger Count Inserting a Trigger Delay Example Setting the Trigger CountExample Inserting a Trigger Delay Default Trigger Delays Querying Delay Time Sample Count Example Setting the Sample CountChecking the Sample Count HP E1312A and HP E1412A Multimeter Application Examples HP VTL Software Visa MEASure Command Making Multimeter Measurements MEASURE1 Source Code File MEASURE2 Source Code File MEASURE3 Source Code File Init MEASURE4 Source Code File Synchronizing Multimeter With a Switch Module HP E1412A Multimeter and Switch Module Synchronization See -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 multimeter Multimeter Status System Examples Synchopc Source Code File RST CLS *ESE Init OPC Synchmav Source Code File RST Init FETC? End Loop Check the multimeter for system errors Limittst Source Code FileLoop Device Configuration Programming ExamplePage HP E1312A/E1412A Multimeter Application Information Chapter Command Types Common Command FormatCommand Format Command Abbreviated Commands Implied CommandsSeparator Linking Commands Parameters Multimeter Range and Resolution Tables PLC Scpi Command Reference AC Voltage Range versus ResolutionAC Current Range versus Resolution Related Commands INITiate, TRIGger ABORtAborting a Measurement CALCulate Subsystem SyntaxValid Math/Measurement Function Combinations AVERageAVERage? AVERageCOUNt?AVERageMAXimum? AVERageMINimum? DBREFerence DBREFerence?DBMREFerence DBMREFerence? FUNCtion FUNCtion?Parameter Summary Example Example Query the Calculate Math Function LIMitLOWer LIMitLOWer?LIMitUPPer LIMitUPPer? NULLOFFSet NULLOFFSet?STATe STATe? CALibration COUNt?LFRequency Comments Example Query the Line Frequency Setting LFRequency?SECureCODE Example Enter a New Calibration Security Code SECureSTATe SECureSTATe?STRing Example Set the Calibration State to Unsecured STRing? VALueVALue? Example Query the Calibration Message Zeroauto CALibration? CAL? CONFigure Command Setting Default Settings for CONFigure Command by Function Function Range Resolution CURRentAC Example Making AC Current Measurements CURRentDC Example Making DC Current Measurements ResolutionMINMAXDEF selects the frequency function Example Making 4-Wire Ohms Measurements FRESistance PERiod Resolution Minmaxdef Example Making 2-Wire Ohms Measurements VOLTageAC Example Making AC Voltage Measurements VOLTageDC Example Making DC Voltage Measurements VOLTageDCRATio Sense HI and LO input CONFigure? String Returned Data POINts? FETCh? Example Transferring Stored Readings to Output Buffer INITiate IMMediateExample Placing Multimeter in Wait-For-Trigger State Example Query the Input Impedance Mode INPutIMPedanceAUTO IMPedanceAUTO? MEASure CURRentAC? MEASCURRAC? 1,MAX CURRentDC? MEASCURRDC? .1,MAX FREQuency? FRESistance? MEASFRES? 1500,MAX PERiod? RESistance? VOLTageAC? VOLTageDC? VOLTageDCRATio? Example Making DC Voltage Ratio Measurements OUTPut TTLTrgSTATeRST Condition OUTPTTLTn OFF TTLTrgSTATe? Example Route Voltmeter Complete to Trigger LineExample Query Voltmeter Complete Destination READ? Example Transfer Readings Directly to Output Buffer SAMPle COUNtRST Condition Sampcoun Example Set the Sample Count Example Query the Sample Count SAMPCOUN? SENSe Zero Auto Offonceon AUTO? Example Query the Measurement Function Function CURRentACRANGe CURRentACRANGe?Example Query the AC Current Measurement Range 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 Time CURRentDCNPLC CURRentDCNPLC?Example Query the DC Current Integration Time CURRentDCRANGe CURRentDCRANGe?Example Set the DC Current Range to 3A Example Query the DC Current Measurement Range Example Disable DC Current Autoranging Example Query the DC Current Autorange ModeCURRentDCRANGeAUTO CURRentDCRANGeAUTO? CURRentDCRESolution CURRentDCRESolution? DETectorBANDwidth DETectorBANDwidth? FREQuencyAPERtureFREQuencyAPERture? Example Query the Detector Bandwidth FREQuencyVOLTageRANGe FREQuencyVOLTageRANGe?Example Set the Voltage Range for Frequency Measurements to Example Query the Measurement Range Example Disable Autoranging Example Query the Autorange ModeFREQuencyVOLTageRANGeAUTO FREQuencyVOLTageRANGeAUTO? FRESistanceAPERture FRESistanceAPERture? FRESistanceNPLC FRESistanceNPLC?Example Query the Integration Time FRESistanceRANGe FRESistanceRANGe? FRESistanceRANGeAUTO FRESistanceRANGeAUTO? FRESistanceRESolution FRESistanceRESolution?Example Query the Resolution RST Condition Fresres 1mΩ 1E-03 PERiodAPERture PERiodAPERture?RST Condition 0.1 100ms Example Set the Aperture Time PERiodVOLTageRANGe PERiodVOLTageRANGe?Example Set the Voltage Range for Period Measurements to Example Query the Period Voltage Range PERiodVOLTageRANGeAUTO PERiodVOLTageRANGeAUTO? RESistanceAPERture RESistanceAPERture? RESistanceNPLC RESistanceNPLC? RESistanceRANGe RESistanceRANGe?RST Condition Resrang 1kΩ Example Change the Range RESistanceRANGeAUTO RESistanceRANGeAUTO? RESistanceRESolution RESistanceRESolution?Example Change the Resolution VOLTageACRANGe VOLTageACRANGe? Example Disable AC Voltage Autoranging VOLTageACRANGeAUTOVOLTageACRANGeAUTO? VOLTageACRESolution VOLTageACRESolution?RST Condition 1E-04 Example Change the Resolution VOLTageDCAPERture VOLTageDCAPERture? VOLTageDCNPLC VOLTageDCNPLC? VOLTageDCRANGe VOLTageDCRANGe? VOLTageDCRANGeAUTO VOLTageDCRANGeAUTO? VOLTageDCRESolution VOLTageDCRESolution? Example Disable Autozero Example Query the Autozero Mode PRESet QUEStionableENABleSTATus QUEStionableCONDition? QUEStionableENABle? QUEStionableEVENt? ERRor? Example Reading the Error QueueSYSTem VERSion? TRIGger RST Condition Trigcoun Example Set the Trigger Count DELay Example Set the Trigger DelayExample Query the Trigger Count DELay? DELayAUTOExample Query the Trigger Delay Example Disable Automatic Trigger Delay DELayAUTO? Example Query the Trigger Delay Mode Related Commands INITiate, READ?, MEAS? SOURceExample Set the Sample Source SOURce? Example Query the Trigger Source Ieee 488.2 Common Command Quick Reference Category Command Title Description Example Enable All Error Events ESE and *ESE? ESR? SRE and *SRE? RST does not affect STB? Scpi Command Quick Reference HP E1412A C-size 6½-Digit Multimeters Data 67sMINMAX Zeroauto Offonceon HP E1312A and HP E1412A Multimeter Specifications DC Characteristics Measuring Characteristics 60 Hz 50 Hz Operating Characteristics AC Characteristics True RMS AC True RMS AC Voltage System Speeds 10 Frequency and Period Characteristics Accuracy Specifications ±% of reading 1 Configuration Rates 14/sec Autorange Time General Specifications To Calculate Total Measurement Error Understanding the % of reading Error Total Measurement Error Interpreting Multimeter Specifications Number of Digits and Overrange Accuracy Configuring for High Accuracy Measurements DC Voltage, DC Current, and Resistance Measurements Execution Errors 112Program mnemonic too long 113Undefined header121Invalid character in number 123Numeric overflow To -168Block data errors To -178Expression errors221Settings conflict 211Trigger ignored 350Too many errors 330Self-test failed440Query Unterminated after indefinite response Cannot achieve requested resolution Cannot use overload as math reference Cal signal measurement out of range Cal signal frequency out of rangeCal secured Invalid secure code No 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 Minimize Number Command Response Sessions General Guidelines for Increasing Measurement SpeedAvoid Function Changes Avoid Aperture Changes Set Autozero to Once or OFF Turn Autorange Decrease Aperture Time or NPLCs Setting 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