Operator`s manual
Table Of Contents
- 1.0 Introduction
- 2.0 Specifications
- 2.1 DC Voltage Measurement
- 2.2 DC Current Measurement
- 2.3 Resistance Measurements
- 2.4 AC Voltage Measurements
- 2.5 AC Current Measurement, True RMS
- 2.6 Leakage Measurement (SMU2064)
- 2.7 RTD Temperature Measurement
- 2.8 Thermocouple Temperature Measurement
- 2.9 Additional Component Measurement Capability
- 2.10 Time Measurements
- 2.11 Trigger Functions
- 2.12 Measurement Times
- 2.12.1 Measurement Apertures and Read Interval
- 2.12.2 Range and Function Transition Times
- Range switching within Volts DC, using DMMSetRange()
- Range switching in Resistance (2-W or 4-W), using DMMSetRange()
- Switching between VDC and Resistance, using DMMSetFuncRange()
- Switching between Ohms and IDC, using DMMSetFuncRange()
- Switching between VDC and Capacitance, using DMMSetFuncRange()
- Switching between Ohms and Capacitance, using DMMSetFuncRange()
- Switching ranges within DC Current using DMMSetRange()
- Switching Capacitance ranges using DMMSetRange()
- 2.13 Source Functions (2064)
- 2.14 Accuracy Notes
- 2.15 Other Specifications
- 3.0 Getting Started
- 4.0 DMM Operation and Measurements Tutorial
- 4.1 Voltage Measurement
- 4.2 Current Measurements
- 4.3 Resistance Measurements
- 4.3.1 2-Wire Ohm Measurements
- 4.3.2 4-Wire Ohm Measurements
- 4.3.3 Using Offset Ohms function (SMU2064)
- 4.3.4 6-wire Guarded Resistance Measurement (SMU2064)
- 4.3.5 Extended Resistance Measurements (SMU2064)
- 4.3.6 Effects of Thermo-Voltaic Offset
- 4.3.7 Guarding High Value Resistance Measurements (SMU2064)
- 4.4 Leakage Measurements (SMU2064)
- 4.5 Anatomy of measurement timing
- 4.6 RTD Temperature Measurement (SMU2064)
- 4.7 Internal Temperature (SMU2064)
- 4.8 Diode Characterization
- 4.9 Capacitance Measurement, Charge Balance method
- 4.10 In-Circuit Capacitance Measurement (SMU2064)
- 4.11 Measuring the resistance in a series RC network (2064)
- 4.12 Inductance Measurement (SMU2064)
- 4.13 Characteristic Impedance Measurement (SMU2064)
- 4.14 Trigger Operation
- 4.15 Time and Frequency Measurements
- 4.16 Source Functions (2064)
- 4.17 Interfacing to an external device
- 4.18 Measuring Thermocouples’ Temperature
- 4.19 Auxiliary VDC inputs (2064)
- 5.0 Windows Interface
- 5.1 Distribution Files
- 5.2 Using the SMU2060 Driver With C++ or Similar Software
- 5.3 Visual Basic DMM Panel Application
- 5.4 Windows DLL Default Modes and Parameters
- 5.5 Using the SMU2060 DLL with LabWindows/CVI
- 5.6 Windows Command Language
- DMMArmAnalogTrigger
- DMMArmTrigger
- DMMBurstBuffRead
- DMMBurstRead
- DMMCalibrate
- DMMCleanRelay
- DMMClearMinMax
- DMMCloseUSB
- DMMDelayedTrigger
- DMMDisableTrimDAC
- DMMDisarmTrigger
- DMMDutyCycleStr
- DMMErrString
- DMMFrequencyStr
- DMMGetACCapsR
- DMMGetAperture
- DMMGetAverageVAC
- DMMGetBufferSize
- DMMGetBusInfo
- DMMGetCalDate
- DMMGetdB
- DMMGetdBStr
- DMMGetCJTemp
- DMMGetCounterRange
- DMMGetDeviation
- DMMGetDeviatStr
- DMMGetDevLocation
- DMMGetDiffMnMxStr
- DMMGetFuncRange
- DMMGetFunction
- DMMGetGrdVer
- DMMGetHwVer
- DMMGetHwOption
- DMMGetID
- DMMGetLowFreqVRMS
- DMMGetManDate
- DMMGetMax
- DMMGetMaxStr
- DMMGetMin
- DMMGetMinStr
- DMMGetNumDevices
- DMMGetRange
- DMMGetReadInterval
- DMMGetSourceFreq
- DMMGetStoredReading
- DMMGetSourceMode
- DMMGetTCType
- DMMGetTrigger
- DMMGetTriggerInfo
- DMMGetType
- DMMGetVer
- DMMInit
- DMMIsAutoRange
- DMMIsInitialized
- DMMIsRelative
- DMMLongTrigger
- DMMLongTrigRead
- DMMOpenCalACCaps
- DMMOpenTerminalCal
- DMMOpenUSB
- DMMOutputSync
- DMMPeriodStr
- DMMQuickInit
- DMMRead
- DMMReadBuffer
- DMMReadBufferStr
- DMMReadCJTemp
- DMMReadCrestFactor
- DMMReadDutyCycle
- DMMReadSR
- DMMReadFrequency
- DMMReadHiLoSense
- DMMReadHiSense
- DMMReadInductorQ
- DMMReadInductorR
- DMMReadLoSense
- DMMReadMeasurement
- DMMReadMedian
- DMMReadNorm
- DMMReadNsamples
- DMMReadPeakToPeak
- DMMReadPeriod
- DMMReadStr
- DMMReadTestV
- DMMReadTotalizer
- DMMReadWidth
- DMMReady
- DMMSetACCapsDelay
- DMMSetACCapsLevel
- DMMSetACVSource
- DMMSetAperture
- DMMSetAutoRange
- DMMSetBuffTrigRead
- DMMSetCapsAveSamp
- DMMSetCJTemp
- DMMSetCompThreshold
- DMMSetCounterRng
- DMMSetDCISource
- DMMSetDCVSource
- DMMSetFastRMS
- DMMSetFuncRange
- DMMSetFunction
- DMMSetInductFreq
- DMMSetOffsetOhms
- DMMSetPLC
- DMMSetPulseGen
- DMMSetRange
- DMMSetReadInterval
- DMMSetReference
- DMMSetRelative
- DMMSetRTD
- DMMSetSensorParams
- DMMSetSourceMode
- DMMSetSourceRes
- DMMSetSync
- DMMSetTCType
- DMMSetTempUnits
- DMMSetTrigPolarity
- DMMSetTrigRead
- DMMSetTrimDAC
- DMMStartTotalizer
- DMMStopTotalizer
- DMMTerminate
- DMMTrigger
- DMMTriggerBurst
- DMMUnlockCounter
- DMMWaitForTrigger
- DMMWidthStr
- 5.7 Calibration and Service Commands
- 5.8 Service Commands
- 5.9 Error Codes
- 5.10 Warning Codes
- 5.11 Parameter List
- 6.0 Maintenance
- 7.0 Warranty and Service
- 8.0 Accessories

Figure 4-22. A DMM two-way handshake with a component handler requires current boos due to
handler’s high current requirements, to drive its optically-insolated input.
Figure 4-23. Two DMM two way handshake interface.
4.18 Measuring Thermocouples’ Temperature
59 Signametrics
The SMU2060 series of Digital Multimeters have built in linearization for eight thermocouple types
including B, E, J, K, N, R, S and T. In addition the DMM has m
eans for both, entering and measuring the
reference (cold) junction temperature. The DMMSetTemperatureUnits() selects between
o
C and
o
F.
Once selected, all subsequent temperature functions should consider the set temperature units.
DMMSetTCType() selects the type of thermocouple being measured. It can be used as frequently as
needed when measuring several types. Prior to measuring a Thermocouple it is important to set the
reference, or cold junction temperature. This can be done as often as necessary as to keep track of
variations in this temperature. Once set, all subsequent thermocouple measurements will use and
compensate for this temperature. One way to set this temperature is to simply pass it to the DMM using
the DMMSetCJTemp(). Make sure to set it to the currently set temperature units. The cold junction
temperature range is 0
o
C to 50
o
C. If using the SM4042 or SM4040 to multiplex the thermocouples, and
the SM40T screw terminal block is being utilized to connect the thermocouples, DMMReadCJTemp()
should be used to measure the cold junction. Make sure to select and connect the “D” to the “A” bus of
the SM4000 switching. The third method of measuring and entering the cold junction temperature is by
measuring a user provided sensor. Provided this sensor have an output between –3.3V and +3.3V, and it