Operator`s manual

Signametrics 4
3.2 INSTALLING THE SOFTWARE.....................................................................................................................27
3.3 INSTALLING THE DMM MODULE .............................................................................................................27
3.4 CALIBRATION FILE ...................................................................................................................................27
3.5 DMM TERMINALS....................................................................................................................................28
3.6 DMM REAR PANEL..................................................................................................................................30
3.7 STARTING THE CONTROL PANEL ..............................................................................................................30
3.8 USING THE CONTROL PANEL ....................................................................................................................31
4.0 DMM OPERATION AND MEASUREMENTS TUTORIAL.........................................................................34
4.1 VOLTAGE MEASUREMENT........................................................................................................................34
4.1.1 DC Voltage Measurements ....................................................................................................34
4.1.2 True RMS AC Voltage Measurements ...................................................................................34
4.1.3 AC Peak-to-Peak and Crest Factor (SMU2064) ...................................................................35
4.1.4 AC Median Value Measurement (SMU2064) ........................................................................35
4.1.5 Average AC Voltage Measurement (2064) ...........................................................................35
4.1.6 Low frequency RMS Voltage Measurement (2064) ..............................................................35
4.2 CURRENT MEASUREMENTS ......................................................................................................................36
4.2.1 Extended DC Current Measurements (SMU2064) ................................................................36
4.2.2 Improving DC Current Measurements ..................................................................................36
4.2.3 DC Current Measurements at a specific voltage...................................................................36
4.3 RESISTANCE MEASUREMENTS..................................................................................................................36
4.3.1 2-Wire Ohm Measurements ...................................................................................................37
4.3.2 4-Wire Ohm Measurements ...................................................................................................37
4.3.3 Using Offset Ohms function (SMU2064) ...............................................................................38
4.3.4 6-wire Guarded Resistance Measurement (SMU2064) .........................................................38
4.3.5 Extended Resistance Measurements (SMU2064)...................................................................39
4.3.6 Effects of Thermo-Voltaic Offset............................................................................................40
4.3.7 Guarding High Value Resistance Measurements (SMU2064)...............................................41
4.4 LEAKAGE MEASUREMENTS (SMU2064) ..................................................................................................42
4.5 ANATOMY OF MEASUREMENT TIMING ......................................................................................................43
4.5.1 Aperture .................................................................................................................................43
4.5.2 Read Interval..........................................................................................................................43
4.6 RTD TEMPERATURE MEASUREMENT (SMU2064)...................................................................................44
4.7 INTERNAL TEMPERATURE (SMU2064) ....................................................................................................44
4.8 DIODE CHARACTERIZATION .....................................................................................................................44
4.9 CAPACITANCE MEASUREMENT, CHARGE BALANCE METHOD...................................................................44
4.10 IN-CIRCUIT CAPACITANCE MEASUREMENT (SMU2064)........................................................................45
Additional considerations...............................................................................................................45
4.11 MEASURING THE RESISTANCE IN A SERIES RC NETWORK (2064)............................................................45
4.12 INDUCTANCE MEASUREMENT (SMU2064) ............................................................................................46
4.13 CHARACTERISTIC IMPEDANCE MEASUREMENT (SMU2064) ..................................................................47
4.14 TRIGGER OPERATION .............................................................................................................................47
4.14.1 External Hardware Trigger .................................................................................................47
4.14.2 Analog Threshold Trigger....................................................................................................48
4.14.3 Software Initiated Triggered Operations.............................................................................49
4.14.4 External Trigger and Sync Handshake................................................................................51
4.15 TIME AND FREQUENCY MEASUREMENTS ...............................................................................................51
4.15.1 Threshold DAC (SMU2064) ................................................................................................51
4.15.2 Using the Frequency counter...............................................................................................52
4.15.3 Duty Cycle Measurement (SMU2064).................................................................................53
4.15.4 Pulse Width (SMU2064) ......................................................................................................53
4.15.5 Totalizer Event Counter (SMU2064)...................................................................................53
4.16 SOURCE FUNCTIONS (2064) ...................................................................................................................54
4.16.1 DC Voltage Source ..............................................................................................................54
4.16.2 Source DC Voltage and measure DC Current.....................................................................54
4.16.3 AC Voltage Source...............................................................................................................56
4.16.4 DC Current Source ..............................................................................................................56
4.16.5 Source Current - Measure Voltage......................................................................................57
4.16.6 Pulse Generator...................................................................................................................57
4.17 INTERFACING TO AN EXTERNAL DEVICE .................................................................................................58