Agilent Technologies 34970A manual Calclimitupper MAX,@101LOWER 9,@101LOWERSTATE on

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Chapter 5 Remote Interface Reference

Alarm System Overview

•Four TTL alarm outputs are available on the rear-panel Alarms connector. You can use these hardware outputs to trigger external alarm lights, sirens, or send a TTL pulse to your control system.

You can also initiate a scan sweep (no external wiring required) when an alarm event is logged on a channel. For complete details, refer to “Using the Alarm Output Lines” on page 128.

•In addition to being stored in reading memory, alarms are also recorded in their own SCPI status system. You can configure the instrument to use the status system to generate a Service Request (SRQ) when alarms are generated. See “The SCPI Status System,” starting on page 275 for more information.

•The default values for the upper and lower alarm limits are “0”. The lower limit must always be less than or equal to the upper limit, even if you are using only one of the limits.

To ensure that an error is not generated when using only an upper or lower limit, execute the following command sequence (this example assumes that you are setting only a lower limit):

CALC:LIMIT:UPPER MAX,(@101);LOWER 9,(@101);LOWER:STATE ON

 

• A Factory Reset (*RST command) clears all alarm limits and turns off

5

all alarms. An Instrument Preset (SYSTem:PRESet command) or Card Reset (SYSTem:CPON command) does not clear the alarm limits and does not turn off alarms.

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Contents User’s Guide Agilent 34970A Data Acquistion/Switch UnitPage Flexible Data Acquisition/Switching Features Convenient Data Logging FeaturesFront Panel at a Glance Front-Panel Menus at a Glance Adrs Display AnnunciatorsUse the Menu to Rear Panel at a GlanceBenchLink Data Logger Software at a Glance 34902A 16-Channel Reed Multiplexer For detailed information and a module diagram, seePlug-In Modules at a Glance 34901A 20-Channel Armature Multiplexer34905/6A Dual 4-Channel RF Multiplexers 34903A 20-Channel Actuator/General-Purpose Switch34904A 4x8 Two-Wire Matrix Switch 34908A 40-Channel Single-Ended Multiplexer For detailed information and module block diagrams, see34907A Multifunction Module This Book Contents Contents Remote Interface Reference Application Programs Quick Start Quick Start Check the list of supplied items Connect the power cord and turn on the instrumentTo Prepare the Instrument for Use To Prepare the Instrument for UseInstalling BenchLink Data Logger Software Installing BenchLink Data Logger SoftwareInstallation Procedure On-Line Help System Creating Installation Floppy DisksTo Connect Wiring to a Module To Connect Wiring to a ModuleDC Current / AC Current Wire Ohms / RTD / ThermistorWire Ohms / RTD Thermocouple DC Voltage / AC Voltage / FrequencySet the date To Set the Time and DateTo Set the Time and Date Set the time of daySelect the measurement parameters for the selected channel To Configure a Channel for ScanningTo Configure a Channel for Scanning Select the channel to be added to the scan listView the data from the scan Run the scan and store the readings in non-volatile memoryTo Copy a Channel Configuration To Copy a Channel ConfigurationClose the selected channel Open the selected channel To Close a ChannelTo Close a Channel Select the channelIf the Instrument Does Not Turn On Verify that there is ac power to the instrumentVerify the power-line voltage setting Verify that the power-line fuse is goodReplace the fuse-holder assembly in the rear panel Bench-top viewing positions To Adjust the Carrying HandleTo Adjust the Carrying Handle To Rack Mount the Instrument To Rack Mount the InstrumentQuick Start Page Front-Panel Overview Front-Panel Overview Front-Panel Menu Reference Front-Panel Menu ReferenceConfigure system-related instrument parameters To Monitor a Single Channel Enable monitoring on the selected channelTo disable monitoring, press again To Monitor a Single ChannelSelect the scan count Select the interval scan modeTo Set a Scan Interval To Set a Scan IntervalTo Apply Mx+B Scaling to Measurements To Apply Mx+B Scaling to MeasurementsSelect the alarm mode on the selected channel To Configure Alarm LimitsTo Configure Alarm Limits Select which of the four alarms you want to useSet the limit value Read the specified port To Read a Digital Input PortTo Read a Digital Input Port Select the Digital Input portTo Write to a Digital Output Port To Write to a Digital Output PortSelect the totalizer channel Configure the totalize modeTo Read the Totalizer Count To Read the Totalizer CountOutput the voltage from the selected DAC To Output a DC VoltageTo Output a DC Voltage Select a DAC Output channelSelect the Gpib address To Configure the Remote InterfaceTo Configure the Remote Interface Select the Gpib Hpib interfaceSave the changes and exit the menu Select the RS-232 interface Select the baud rateSelect the parity and number of data bits Select the flow control methodStore the instrument state To Store the Instrument StateTo Store the Instrument State Select the storage locationSystem Overview Control Output, starting on Data Acquisition System OverviewAdvantages Disadvantages Computer and Interface CableData Acquisition System Overview Agilent BenchLink Data Logger Measurement Software34970A Data Acquisition / Switch Unit Model Number Module Name Common Uses Signal RoutingPlug-In Modules Cable Type Common Uses Comments System CablingSystem Cabling and Connections starting on Transducers and Sensors Alarm LimitsSignal Routing and Switching Signal Routing and SwitchingSwitching Topologies Multiplexers are available in several types Channel Open Measurement Input Measurement InputInternal DMM Measurement Input Scanning Scan Count Scanning With External Instruments Multifunction Module +IN Control Output Control OutputDAC Actuator / General-Purpose Switch Page Features and Functions Scanning, starting on Mx+B Scaling, starting on Alarm Limits, starting onScpi Language Conventions Rules for Using a Channel ListScpi Language Conventions Scanning ScanningRules for Scanning Scanning Or disable it see Internal DMM Disable on Power Failure To Build a Scan List From the Front Panel Adding Channels to a Scan ListTo Build a Scan List From the Remote Interface Scan Interval Sweep the scan list 2 times Select the interval timer configurationSee Scan Count on page 86 for more information Set the scan interval to 5 secondsGroup Execute Trigger Select the bus once configurationFront-Panel Operation Select the external trigger configuration Ext Trig ConnectorOn page 86 for more information Enable monitoring Select the alarm configurationEnable the upper limit Report alarms on AlarmRemote Interface Operation Scan CountReading Format Channel Delay AC Filter Channel Delay Automatic Channel DelaysIntegration Time Channel Delay Range Channel DelayViewing Readings Stored in Memory Readings Time maximum was logged Minimum reading on channelTime minimum was logged Maximum reading on channelSingle-Channel Monitoring Single-Channel MonitoringROUTMONDATA? Scanning With External Instruments Scanning With External InstrumentsScanning With External Instruments Select the channel advance source Select the scan intervalMeasurement Range General Measurement ConfigurationGeneral Measurement Configuration MV Range Measurement Resolution Integration Time, on page 103 for more information 102 PLC Custom A/D Integration Time104 Autozero Measurement Units Temperature Measurement ConfigurationTemperature Measurement Configuration Thermocouple Measurements 108 Remote Interface Operation You can use the MEASure? or To connect an RTD to the module’s screw terminals, see RTD Measurements111 To connect a thermistor to the module’s screw terminals, see Thermistor MeasurementsApplies to dc voltage measurements only Voltage Measurement ConfigurationVoltage Measurement Configuration DC Input ResistanceSensvoltacband 3,@203 Select the slow filter 3 Hz AC Low Frequency FilterApplies to ac voltage and ac current measurements only To connect resistances to the module’s screw terminals, see Resistance Measurement ConfigurationResistance Measurement Configuration Offset CompensationApplies to ac current and ac voltage measurements only Current Measurement ConfigurationCurrent Measurement Configuration Senscurracband 3,@221 Select the slow filter 3 Hz Sensfreqranglow 3,@203 Select the slow timeout 3 Hz Frequency Measurement ConfigurationLow Frequency Timeout Frequency Measurement ConfigurationMx+B Scaling Mx+B Scaling= − GF x R 121 Alarm Limits Alarm LimitsAlarm Limits Alarm Event No Alarm Upper Limit Lower Limit Then, choose from the following alarm conditions Viewing Stored Alarm Data 127 Alarms Connector Using the Alarm Output LinesClear all four alarm outputs Clear alarm output lineUsing Alarms With the Multifunction Module Following commands also see the example on the following Data read from port decimal Calccompdata command decimalCalccompmask command decimal Result no alarm generatedDigital Input Operations Digital Input OperationsAdd port 02 read to scan list Read portRead both ports together Totalizer Operations Totalizer Operations136 137 Write to both ports Digital Output OperationsDigital Output Operations Write to portThree slots six DAC channels DAC Output OperationsDAC Output Operations System-Related Operations System-Related OperationsState Storage 141 Error Conditions Returns 0 if the self-test is successful or 1 if it fails Self-TestDisplay Control Set date to June 1 Internal DMM DisableReal-Time System Clock Set time to 345 PMHEWLETT-PACKARD,34970A,0,X.X-Y.Y-Z.Z Firmware Revision QueryRelay Cycle Count 148 You cannot query the Scpi version from the front panel Scpi Language Version QueryYou can set the Gpib address from the front panel only Remote Interface ConfigurationRemote Interface Configuration Gpib AddressRemote Interface Selection You can set the parity from the front panel only Baud Rate Selection RS-232Parity Selection RS-232 You can set the baud rate from the front panel onlyFlow Control Selection RS-232 154 Calibration Overview Calibration OverviewCalibration Security 156 Enter new code Unsecure with old codeCalibration Message Calibration Count Factory Reset State Factory Reset StateInstrument Preset State Instrument Preset StateMultiplexer Module Default Settings Multiplexer Module Default SettingsModule Overview Module Overview34901A 20-Channel Multiplexer 34901A 20-Channel MultiplexerName Function Comments Slot Number34902A 16-Channel Multiplexer 34902A 16-Channel Multiplexer167 34903A 20-Channel Actuator 34903A 20-Channel Actuator169 34904A 4x8 Matrix Switch 34904A 4x8 Matrix SwitchName Comments 34905A/6A Dual 4-Channel RF Multiplexers 34905A/6A Dual 4-Channel RF Multiplexers173 Analog Output DAC 34907A Multifunction ModuleDigital Input/Output Totalize InputDAC Output Slot Number 100 200Digital Input / Output Totalizer34908A 40-Channel Single-Ended Multiplexer 34908A 40-Channel Single-Ended Multiplexer177 178 Remote Interface Reference Scanning Overview, starting on Totalizer Commands, starting onCalibration Commands, starting on Scpi Command Summary Scpi Command SummaryRules for Using scanlist and chlist Parameters See page 237 for more information Scpi Command Summary Scan Measurement CommandsMonitor Commands See page 226 for more informationFORMat Scpi Command Summary Scan Configuration CommandsSee page 235 for more information Scpi Command Summary Scan Statistics CommandsScan Memory Commands See page 233 for more informationSee page 239 for more information Scpi Command Summary Scanning With an External InstrumentSee page 219 for more information Scpi Command Summary Temperature Configuration CommandsSee page 223 for more information Scpi Command Summary Voltage Configuration CommandsSee page 224 for more information Scpi Command Summary Resistance Configuration CommandsScpi Command Summary Current Configuration Commands See page 214 for more information See page 244 for more information Scpi Command Summary Mx+B Scaling CommandsSee page 247 for more information Scpi Command Summary Alarm Limit CommandsSee page 256 for more information Scpi Command Summary Digital Input CommandsTotalizer Commands See page 255 for more informationSee page 258 for more information Scpi Command Summary Digital Output CommandsDAC Output Commands Switch Control CommandsSee page 261 for more information Scpi Command Summary Scan Triggering CommandsState Storage Commands See page 228 for more informationSee page 264 for more information Scpi Command Summary System-Related CommandsSee page 286 for more information Scpi Command Summary Interface Configuration CommandsStatus System Commands See page 269 for more informationSee page 294 for more information Scpi Command Summary Calibration CommandsService-Related Commands See page 292 for more informationScpi Command Summary Ieee 488.2 Common Commands Simplified Programming Overview Simplified Programming OverviewUsing the CONFigure Command Using the MEASure? CommandUsing the range and resolution Parameters Using the INITiate and FETCh? Commands Using the READ? Command205 Trigsour EXT Init FETC? MEASureTEMPerature?5 TCouple,BEJKNRSTDEF MEASure? and CONFigure CommandsMEASure? and CONFigure Commands MEASure? Command SyntaxMEASureVOLTageDC? MEASureVOLTageAC? RangeAUTOMINMAXDEF MEASureTEMPerature? RTDFRTD,8591DEFMEASureTEMPerature? THERmistor,2252500010000DEF On the 34901A multiplexer module MEASureRESistance? MEASureFRESistance? RangeAUTOMINMAXDEFMEASureCURRentDC? MEASureCURRentAC? RangeAUTOMINMAXDEF MEASureDIGitalBYTE? @scanlist MEASureTOTalize? READRRESet ,@scanlistCONFigureTEMPerature THERmistor,2252500010000DEF MEASure? and CONFigure Commands CONFigure Command SyntaxCONFigureTEMPerature TCouple,BEJKNRSTDEF CONFigureTEMPerature RTDFRTD,8591DEFCONFigureCURRentDC CONFigureCURRentAC RangeAUTOMINMAXDEF CONFigureVOLTageDC CONFigureVOLTageAC RangeAUTOMINMAXDEFCONFigureRESistance CONFigureFRESistance RangeAUTOMINMAXDEF CONFigure? @chlist CONFigureFREQuency CONFigurePERiod RangeAUTOMINMAXDEFCONFigureDIGitalBYTE @scanlist CONFigureTOTalize READRRESet ,@scanlistSENSeFUNCtion function,@chlist Setting the Function, Range, and ResolutionSetting the Function, Range, and Resolution See also General Measurement Configuration in starting onSetting the Function, Range, and Resolution Setting the Function, Range, and Resolution Setting the Function, Range, and Resolution Setting the Function, Range, and Resolution SENSeTEMPerature Nplc 0.020.2121020100200MINMAX,@chlist Temperature Configuration CommandsGeneral Temperature Commands SENSeTEMPeratureTRANsducerTemperature Configuration Commands Thermocouple Commands SENSeTEMPeratureRJUNction? @ch list Thermistor Commands Temperature Configuration Commands RTD CommandsSENSe Zeroauto OFFONCEON,@chlist ZEROAUTO? @chlist Voltage Configuration CommandsSee also Voltage Measurement Configuration in starting on INPutSee also Current Measurement Configuration in starting on Resistance Configuration CommandsCurrent Configuration Commands See also Frequency Measurement Configuration in starting on Frequency Configuration CommandsFrequency Configuration Commands See also Scanning in starting on Scanning OverviewScanning Overview Scan Interval ROUTeSCANSIZE? Scanning Overview Scanning CommandsTRIGger SOURce BUSIMMediateEXTernalALARm1234TIMer SOURce? ROUTe Scan @scanlist SCAN?TRIGger COUNt countMINMAXINFinity COUNt? TRIGger TIMer secondsMINMAX TIMer?ROUTe CHANnelDELay seconds,@ch list CHANnelDELay? @chlist INITiate ROUTeABORt FORMat READingCHANnel Offon READingCHANnel? Scanning Overview Reading Format CommandsFORMat READingALARm Offon READingALARm? FORMat READingTIMETYPE ABSoluteRELative READingTIMETYPE? FORMat READingTIME Offon READingTIME?FORMat READingUNIT Offon READingUNIT? CALCulateAVERageMAXimum? @chlist Scanning Overview Scan Statistics CommandsCALCulateAVERageMINimum? @chlist CALCulateAVERageMINimumTIME? @chlistCALCulateAVERageCLEar @chlist CALCulateAVERageAVERage? @chlistCALCulateAVERagePTPeak? @chlist CALCulateAVERageCOUNt? @chlistDATAREMove? numrdgs Scanning Overview Scan Memory CommandsDATAPOINts? FETCh? See Reading Format Commands onSYSTemTIMESCAN? Single-Channel Monitoring Overview Single-Channel Monitoring OverviewROUTeMONitorDATA? ROUTe MONitor @channel MONitor?ROUTe MONitorSTATe Offon MONitorSTATe? Scanning With an External Instrument TRIGger SOURce BUSIMMediateEXTernalTIMer SOURce? TRIGger COUNt valueMINMAXINFinity COUNt? Scanning With an External Instrument INSTrument INSTrumentDMMINSTalled?See also Mx+B Scaling in starting on Mx+B Scaling OverviewMx+B Scaling Overview CALCulate Mx+B Scaling Overview Mx+B Scaling CommandsCALCulateSCALeOFFSetNULL @chlist See also Alarm Limits in starting on Alarm System OverviewAlarm System Overview Alarm System Overview Calclimitupper MAX,@101LOWER 9,@101LOWERSTATE on CALCulate LIMitUPPer value,@ch list LIMitUPPer? @chlist Alarm System Overview Alarm Limit CommandsOUTPut ALARm1234SOURce @chlist ALARm1234SOURce? CALCulate LIMitLOWer value,@ch list LIMitLOWer? @chlist SYSTemALARm?OUTPut ALARmSLOPe NEGativePOSitive ALARmSLOPe? Alarm System Overview Alarm Output CommandsOUTPut ALARmMODE LATChTRACk ALARmMODE? COMPareDATA? @chlist Digital I/O Alarm CommandsCOMPareMASK mask,@chlist COMPareMASK? @chlist SENSeDIGitalDATABYTEWORD? @chlist Digital Input CommandsSee also Digital Input Operations in starting on See also Totalizer Operations in starting on Totalizer CommandsSENSe TOTalizeTYPE READRRESet,@chlist TOTalizeTYPE? @chlist SENSeTOTalizeDATA? @chlist Commands see Reading Format Commands onSENSeTOTalizeCLEarIMMediate @chlist SOURce Digital Output CommandsDAC Output Commands SOURceDIGitalSTATe? @chlistSwitch Control Commands This is equivalent to pressing from the front panel ROUTeDONE?SYSTemCPON 100200300ALL RCL State Storage CommandsSAV MEMorySTATeDELete MEMorySTATe Name 12345 ,name NAME?MEMoryNSTates? RECallAUTO?MEMorySTATeVALid? SYSTemDATE? System-Related CommandsSee also System-Related Operations in starting on SYSTemDATE yyyy,mm,ddSYSTemCTYPe? IDN?DISPlayTEXTCLEar DISPlay Offon DISPlay?DISPlay INSTrument DMM Offon SYSTemPRESetSYSTemVERSion? SYSTemERRor?See for a complete listing of the 34970A error messages Interface Configuration Commands RS-232 Interface Configuration RS-232 Interface ConfigurationRS-232 Configuration Overview RS-232 Flow Control Modes Connection to a Computer or Terminal RS-232 Data Frame FormatRS-232 Troubleshooting S0=1 Modem CommunicationsModem Communications For more information, see Flow Control Selection onScpi Status System What is a Condition Register?What is an Event Register? What is an Enable Register?Agilent 34970A Status System Definition Status Byte RegisterBit Definitions Status Byte Register Decimal Bit NumberUsing *STB? to Read the Status Byte Using Service Request SRQ and Serial PollTo Determine When a Command Sequence is Completed Using the Message Available Bit MAVTo Interrupt Your Bus Controller Using SRQ Bit Definitions Questionable Data Register Questionable Data RegisterScpi Status System Bit Definitions Standard Event Register Standard Event RegisterScpi Status System Bit Definitions Alarm Register Alarm RegisterBit Definitions Standard Operation Register Standard Operation RegisterSee the table on page 277 for the register bit definitions Status System CommandsStatus Byte Register Commands See the table on page 280 for the register bit definitions Questionable Data Register CommandsSee the table on page 282 for the register bit definitions Status System Commands Standard Event Register CommandsSTATusALARmENABle enablevalue STATusALARmENABle? Status System Commands Alarm Register CommandsSTATusALARmCONDition? STATusALARmEVENt?STATusOPERationCONDition? Status System Commands Standard Operation Register CommandsSTATusOPERationENABle enablevalue STATusOPERationENABle? See the table on page 285 for the register bit definitionsPSC Miscellaneous Status Register CommandsSTATusPRESet DATAPOINtsEVENtTHReshold numrdgs DATAPOINtsEVENtTHReshold?CALibrationSECureCODE newcode Calibration CommandsCALibration? CALibrationCOUNt?CALibrationVALue value CALibrationVALue? CALibrationSECureSTATe OFFON,code CALibrationSECureSTATe?CALibrationSTRing quotedstring CALibrationSTRing?DIAGnosticRELayCYCLes? @chlist Service-Related CommandsDIAGnosticDMMCYCLes? DIAGnosticDMMCYCLesCLEarWAI An Introduction to the Scpi Language An Introduction to the Scpi LanguageCommand Format Used in This Manual Using the MIN and MAX Parameters Command SeparatorsIEEE-488.2 Common Commands Querying Parameter SettingsScpi Command Terminators Scpi Parameter Types 301 Using Device Clear Using Device ClearError Messages Error Messages Execution Errors 124 Execution Errors 114121 123213 Execution Errors 168178 211410 Execution Errors 230310 350Instrument Errors 226 Instrument Errors 221225 281 Instrument Errors 261271 272306 Instrument Errors 303305 512 Instrument Errors 501502 511603 Self-Test Errors601 602Calibration Errors 722 Calibration Errors 710720 721903 Plug-In Module Errors901 902318 Application Programs Application Programs Example Programs for Excel Example Programs for ExcelVISAaddr = Excel 7.0 Example takeReadings Macro323 324 Dim columnIndex As Integer Excel 7.0 Example ScanChannels Macro326 327 Example Programs for C and C++ Example Programs for C and C++++ Example dacout.c ++ Example statreg.c 331 332 Tutorial Tutorial Matrix Switching, starting onSystem Cabling and Connections Cable SpecificationsSystem Cabling and Connections Cable Type Nominal Impedance Capacitance Attenuation Ft 2 conductorsGrounding Techniques Shielding Techniques Separation of High-Level and Low-Level SignalsSources of System Cabling Errors Copper-to Approx. ∝V / C Discussion of integration time WhereVoltage Measured = √ V + Noise Measurement Fundamentals Measurement FundamentalsNMR Integration Time PLCsRTD Temperature MeasurementsMeasurement Fundamentals Internal DMM Internal DMM Ice Bath 349 Measurement Fundamentals Copper Constantan Temperature Probe Type Pos + Lead Neg LeadIron Constantan Nickel-Chromium Nickel-AluminumSources of Error in Thermocouple Measurements Without Shield DC Voltage Measurements Or greater see page 103 for a discussion of integration time Sources of Error in DC Voltage MeasurementsConnection a Connection B Rs + Ri 358 AC Voltage Measurements 360 361 Sources of Error in AC Voltage Measurements 363 For low frequencies + Noise Measurement Fundamentals Current measurements are allowed only on the 34901A module Current MeasurementsSources of Error in AC Current Measurements Sources of Error in DC Current MeasurementsResistance Measurements 370 Measurement Fundamentals Insulating Material Resistance Range Moisture Absorbing Sources of Error in Resistance MeasurementsStrain Gage Measurements HI Source HI Sense LO Sense LO Source DMM Sensitivity StrainFrequency and Period Measurements Sources of Error in Frequency and Period Measurements Low-Level Signal Multiplexing and Switching Low-Level Signal Multiplexing and SwitchingTwo-Wire Multiplexers One-Wire Single-Ended MultiplexersFour-Wire Multiplexers Signal Routing and Multiplexing Sources of Error in Multiplexing and Switching Module Bank Actuators and General-Purpose Switching Actuators and General-Purpose SwitchingRC Protection Networks Snubber CircuitsUsing Varistors Using Attenuators Matrix Switching Matrix SwitchingMatrix Module Combining MatricesRF Signal Multiplexing RF Signal MultiplexingInsertion Loss 75Ω Sources of Error in RF SwitchingMultifunction Module Multifunction ModuleDigital Input Digital Output Driving External Switches Using an External Pull-UpTotalizer Totalizer Errors Voltage DAC Output DAC Errors Relay Life and Preventative Maintenance Relay Life and Preventative MaintenanceRelay Load Relay LifeReplacement Strategy Switching Frequency402 Specifications DC, Resistance, and Temperature Accuracy Specifications DC, Resistance, and Temperature Accuracy SpecificationsDC Measurement and Operating Characteristics DC Measurement and Operating CharacteristicsAC Accuracy Specifications AC Accuracy SpecificationsAC Measurement and Operating Characteristics AC Measurement and Operating CharacteristicsMeasurement Rates and System Characteristics Measurement Rates and System CharacteristicsModule Specifications Module Specifications34905A, 34906A Crosstalk 75 Ω Typical AC Performance GraphsTypical AC Performance Graphs Insertion Loss 75 Ω34907A Software SpecificationsProduct and Module Dimensions Product and Module DimensionsTo Calculate Total Measurement Error To Calculate Total Measurement Error415 Sensitivity Interpreting Internal DMM SpecificationsInterpreting Internal DMM Specifications Number of Digits and OverrangeCriteria ResolutionAccuracy Day and 1-Year Accuracy Temperature CoefficientsHour Accuracy Configuring for Highest Accuracy Measurements Configuring for Highest Accuracy Measurements420 Index Totalize Threshold jumper, 135, 175 totalizer reset modeIndex 423 424 425 426 427 428 429 430 431 432 433 434 U T I O N Declaration of Conformity
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34970A specifications

Agilent Technologies 34970A is a versatile data acquisition and measurement system that has gained popularity in various industries, including research and development, manufacturing, and education. The primary purpose of the 34970A is to offer an efficient solution for data collection, monitoring, and analysis, which can significantly enhance productivity and accuracy in testing applications.

One of the main features of the 34970A is its modular design, allowing users to customize the system according to their specific measurement needs. The mainframe can accommodate up to three plug-in measurement modules, which can include various types of measurements such as analog, digital, temperature, and frequency. This modularity provides flexibility for users to tailor the system to their requirements, making it highly adaptable to different applications.

Another notable characteristic of the Agilent 34970A is its impressive channel configuration. The system can support up to 120 measurement channels when fully configured, enabling extensive data acquisition without the need for multiple devices. This capability is essential for applications requiring simultaneous monitoring of multiple parameters or locations.

The 34970A utilizes advanced signal processing technologies to ensure high-accuracy measurements. The internal 6.5-digit resolution multimeter provides precise readings, while the device also supports various input types, such as thermocouples and RTDs for temperature measurements. The ability to perform mathematical functions, such as summation and averaging, on the acquired data further enhances its usability.

For data storage and management, the Agilent 34970A features built-in memory for storing up to 20,000 readings. Users can also easily transfer data to a PC through the RS-232 interface or GPIB (IEEE 488) for further analysis and reporting. Additionally, it offers the capability to program automatic data logging and scheduling of measurements, which streamlines the testing process and reduces manual intervention.

In terms of user interface, the 34970A is equipped with a large graphical display that provides clear visualization of measurement data and easy navigation through settings and options. The menu-driven interface makes it accessible for users of all skill levels, simplifying the setup and operation of the device.

Overall, the Agilent Technologies 34970A stands out for its modularity, high channel capacity, advanced measurement technologies, and user-friendly interface. As a reliable and efficient data acquisition system, it is well-suited for a wide range of applications, making it an essential tool for engineers and technicians looking to enhance measurement precision and efficiency.
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