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7.0 Warranty and Service
The SMX2040 is warranted for a period of one year from date of purchase.
If your unit requires repair or calibration, contact your Signametrics representative. There are no user serviceable parts within the SMX2040. Removal of any of the three external shields will invalidate your warranty. For inwarranty repairs, you must obtain a return authorization from Signametrics prior to returning your unit.
8.0 Accessories
Several accessories are available for the SMX2040 DMMs, which can be purchased directly from Signametrics, or one of its distributors or representatives. These include:
• Basic DMM probes
• DMM probe kit
• Deluxe DMM probe set
• Shielded SMT Tweezer Probes
• Multi Stacking Double Banana shielded cable 36”
• Multi Stacking Double Banana shielded cable 48”
• Mini DIN-7 Trigger, 6-Wire Ohms connector
• 4-Wire Kelvin probes
125 Signametrics
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Table of contents
- 8 1.0 INTRODUCTION
- 10 2.0 SPECIFICATIONS
- 10 2.3.1 AC Voltage True RMS Measurement
- 11 2.3.2 AC Peak-to-Peak Measurement (SMX2044)
- 11 2.3.3 AC Crest Factor Measurement (SMX2044)
- 12 2.3.4 AC Median Value Measurement (SMX2044)
- 13 2.5.1 2-wire and 4-wire
- 13 2.5.2 6-wire Guarded Resistance Measurement (SMX2044)
- 13 (SMX2044)
- 14 2.8.1 Diode Characterization
- 14 2.8.2 Capacitance Measurement (SMX2042, 44)
- 14 2.8.3 Inductance Measurement (SMX2044)
- 14 2.8.4 In Circuit AC-Based Capacitance Measurements (SM2044)
- 15 2.9.1 Threshold DAC
- 15 2.9.2 Frequency and Period Measurement
- 15 2.9.3 Duty Cycle Measurement
- 15 2.9.4 Pulse Width
- 16 2.9.5 Totalizer
- 16 2.10.1 External Hardware Trigger (at DIN-7 connector)
- 16 2.10.2 PXI Bus Hardware Trigger Inputs (at PXI J2)
- 16 2.10.3 PXI Bus Hardware Trigger Output (to PXI J2)
- 16 2.10.4 Analog Threshold Trigger
- 17 (SMX2044)
- 17 2.11.1 DC Voltage Source
- 17 2.11.2 AC Voltage Source
- 17 2.11.3 DC Current Source
- 20 3.0 GETTING STARTED
- 25 4.0 DMM OPERATIONS AND MEASUREMENTS
- 25 4.1.1 DC Voltage Measurements
- 26 4.1.2 True RMS AC Voltage Measurements
- 26 4.1.3 AC Peak-to-Peak and Crest Factor Measurement (SMX2044)
- 27 4.1.4 AC Median Value Measurement (SMX2044)
- 27 4.2.1 Improving Current Measurements
- 28 4.2.2 Low Level DC Current Measurements
- 28 4.2.3 Extended DC Current Measurements (SM2044)
- 28 4.3.1 2-wire Ohm Measurements
- 28 4.3.2 4-wire Ohm Measurements
- 29 4.3.3 Using Offset Ohms function
- 29 4.3.4 6-wire Guarded Resistance Measurement (SMX2044)
- 30 4.3.5 Leakage Measurements (SMX2044)
- 31 4.3.6 Extended Resistance Measurements (SMX2044)
- 32 4.3.7 Effects of Thermo-Voltaic Offset
- 33 4.3.8 Guarding High Value Resistance Measurements (SMX2044)
- 33 (SMX2044)
- 35 4.11.1 External Hardware Trigger
- 36 4.11.2 Analog Threshold Trigger
- 36 4.11.3 Software Issued Triggered Operations
- 36 4.11.4 Using the PXI bus Trigger Facilities
- 37 4.12.1 Threshold DAC
- 38 4.12.2 Frequency and Period Measurements
- 39 4.12.3 Duty Cycle Measurement
- 39 4.12.4 Pulse Width
- 39 4.12.5 Totalizer Event Counter
- 40 (SMX2044)
- 40 4.13.1 DC Voltage Source
- 41 4.13.2 AC Voltage Source
- 41 4.13.3 DC Current Source
- 41 4.13.4 Source Current - Measure Voltage
- 42 (SMX2044)
- 43 4.15.1 Triggering the SMX2040 DMMs
- 44 4.15.2 Multiplexing with the SMX2040 DMMs
- 44 4.15.3 Interface Commands and Timing
- 47 5.1.1 The SM40CAL.DAT file
- 48 Multiple Card Operations Under Windows
- 50 5.3.1 Visual Basic Simple Application
- 52 DMMArmAnalogTrigger
- 53 DMMArmTrigger
- 54 DMMBurstBuffRead
- 55 DMMBurstRead
- 56 DMMCalibrate
- 56 DMMCleanRelay
- 57 DMMClearMinMax
- 57 DMMClosePCI
- 58 DMMDelay
- 58 DMMDisableTrimDAC
- 59 DMMDisArmTrigger
- 59 DMMDutyCycleStr
- 60 DMMErrString
- 60 DMMFrequencyStr
- 62 DMMGetACCapsR
- 62 DMMGetBusInfo
- 63 DMMGetCalDate
- 63 DMMGetdB
- 64 DMMGetdBStr
- 64 DMMGetCJTemp
- 65 DMMGetDeviation
- 66 DMMGetDeviatStr
- 66 DMMGetFuncRange
- 67 DMMGetFunction
- 67 DMMGetGrdVer
- 68 DMMGetHwVer
- 68 DMMGetID
- 69 DMMGetManDate
- 69 DMMGetMax
- 70 DMMGetMaxStr
- 70 DMMGetMin
- 71 DMMGetMinStr
- 71 DMMGetRange
- 72 DMMGetRate
- 72 DMMGetSourceFreq
- 73 DMMGetTCType
- 73 DMMGetType
- 74 DMMGetVer
- 74 DMMInit
- 75 DMMIsAutoRange
- 76 DMMIsInitialized
- 76 DMMIsRelative
- 77 DMMLoadCalFile
- 78 DMMOpenPCI
- 78 DMMOpenCalACCaps
- 79 DMMOpenTerminalCal
- 79 DMMPeriodStr
- 81 DMMPolledRead
- 81 DMMPolledReadCmd
- 82 DMMPolledReadStr
- 82 DMMRead
- 83 DMMReadBuffer
- 84 DMMReadBufferStr
- 84 DMMReadCJTemp
- 85 DMMReadCrestFactor
- 86 DMMReadDutyCycle
- 86 DMMReadFrequency
- 87 DMMReadFrequencyStr
- 88 DMMReadInductorQ
- 88 DMMReadMeasurement
- 89 DMMReadMedian
- 89 DMMReadNorm
- 90 DMMReadPeakToPeak
- 90 DMMReadPeriod
- 91 DMMReadStr
- 92 DMMReadTotalizer
- 93 DMMReadWidth
- 93 DMMReady
- 94 DMMSetACCapsDelay
- 94 DMMSetACCapsLevel
- 95 DMMSetACVSource
- 96 DMMSetAutoRange
- 96 DMMSetBuffTrigRead
- 97 DMMSetCapsAveSamp
- 98 DMMSetCJTemp
- 99 DMMSetCompThreshold
- 99 DMMSetCounterRng
- 100 DMMSetDCISource
- 100 DMMSetDCVSource
- 101 DMMSetExternalShunt
- 102 DMMSetFuncRange
- 102 DMMSetFunction
- 103 DMMSetInductFreq
- 103 DMMSetOffsetOhms
- 104 DMMSetRange
- 104 DMMSetRate
- 105 DMMSetRelative
- 107 DMMSetResistance
- 107 DMMSetRTD
- 108 DMMSetSensoreParams
- 108 DMMSetSourceMode
- 109 DMMSetSynchronized
- 110 DMMSetTCType
- 110 DMMSetTempUnits
- 111 DMMSetTrigRead
- 112 DMMSetTrimDAC
- 112 DMMStartTotalizer
- 114 DMMStopTotalizer
- 114 DMMTerminate
- 115 DMMTrigger
- 115 DMMWidthStr
- 116 SetACCapsFreq
- 117 6.0 MAINTENANCE
- 126 7.0 WARRANTY AND SERVICE
- 126 8.0 ACCESSORIES