Model SR715 Model SR720 LCR Meters

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TABLE OF CONTENTSGENERAL INFORMATIONSafety and Preparation for UseSpecificationsBasic OperationPassive DevicesSeries and Parallel Circuit ModelsTypical Measurement SetupsHow the SR715/720 WorksAbridged Command ListStatus BytesiiivviiiviiiixxxixiixiiiRadial Fixture 2-16Axial Fixture Adapter 2-16Kelvin Clips 2-16SMD Tweezers 2-17Other Fixtures 2-17Binning 2-18Setting Up the Bins 2-19Examples 2-20Binning Worksheet 2-21GETTING STARTEDSR715/720 1-1Display 1-2Keypad 1-3Fixture 1-5Rear Panel 1-6OPERATIONDisplay 2-1Displayed Parameters 2-1Series & Parallel Equivalent Circuits 2-2Display Types 2-2Status & Binning 2-3Test Conditions 2-4Default Conditions 2-4Setting Test Conditions 2-4Frequency 2-4Output Voltage 2-4Range 2-6Autoranging 2-6Range Hold 2-6Constant Voltage 2-7Bias 2-8Internal Bias 2-8External Bias 2-9Measurement Rate 2-9Settling Time 2-10Triggering 2-10Store and Recall 2-11Connecting a Device 2-12Radial Leaded Parts 2-12Axial Leaded Parts 2-12Component Dimensions 2-13Optional Fixtures 2-13Fixture Adapter 2-13Kelvin Clips 2-14SMD Tweezers 2-14BNC Adapter 2-15Open & Short Calibration 2-16Suggestions for Calibration 2-16Option 01: GPIB Handler Interface 2-22ACCURACYConditions 3-1Impedance Accuracy 3-2R+Q Accuracy 3-4L+Q Accuracy 3-5C+D Accuracy 3-6C+R Accuracy 3-7Accuracy With Range Hold 3-8PROGRAMMINGGPIB Communications 4-1RS232 Communications 4-1Front Panel LEDs 4-1Command Syntax 4-1Programming Errors 4-2No Command Bit 4-2Detailed Command List 4-3Measurement Setup Commands 4-3Measurement Control Commands 4-4Measurement Result Commands 4-4Binning Commands 4-6Setup & Control Commands 4-7Status Reporting Commands 4-7Test & Calibration Commands 4-8Status Byte DefinitionsSerial Poll Status Byte 4-10Standard Event Status Byte 4-11LCR Status Byte 4-11Program ExamplesMicrosoft C, Nat'l Instruments GPIB 4-12Microsoft C, CEC GPIB 4-14Binning 4-17IBM BASIC, RS232 4-21TESTS and CALIBRATIONFunctional Tests 5-1Front Panel Test 5-1Self Test 5-2i
TABLE OF CONTENTSOutput Voltage 5-2Resistance Measurement 5-2Capacitance Measurement 5-2Performance Tests 5-4Frequency Accuracy 5-4Amplitude Accuracy 5-5Impedance Accuracy 5-5Resistance Accuracy 5-5Capacitance Accuracy 5-6Performance Test Record 5-8Calibration 5-10Introduction 5-10Calibration Enable 5-10Calbytes 5-10Amplitude Calbytes 5-11Floating Point Calbytes 5-11Amplitude Calibration 5-12Frequency Calibration 5-13Standard Resistor Calibration 5-13Error Messages 6-2Operations Errors 6-2Self-test Errors 6-2Calibration Errors 6-4GPIB Problems 6-4RS232 Problems 6-4Fixture Maintenance 6-5Cleaning 6-5Removing Leads 6-5Changing Radial Contacts 6-5SMD Tweezer Maintenance 6-7Cleaning 6-7Tip Replacement 6-7PARTS and SCHEMATICSParts List 7-1Schematic Diagrams 7-13TROUBLESHOOTING andMAINTENANCENothing Happens at Turn On 6-1Reset 6-1Internal Fuse 6-1External Bias Fuse 6-1ii
Page 1: User’s ManualModel SR715Model SR7
Page 6 and 7: SR715/720 LCR METERGENERAL INFORMAT
Page 8 and 9: SR715/720 LCR METEROPTIONSGPIB / Ha
Page 10 and 11: SR715/720 LCR METERSeries and Paral
Page 12 and 13: SR715/720 LCR METERHow the SR715/72
Page 14 and 15: SR715/720 LCR METERSENA(?) {i} Set
Page 16 and 17: DISPLAYGETTING STARTEDThe LED displ
Page 18 and 19: GETTING STARTEDmode. The range can
Page 20 and 21: GETTING STARTEDREAR PANELPOWER ENTR
Page 22 and 23: OPERATIONSERIES and PARALLEL EQUIVA
Page 24 and 25: OPERATIONTEST CONDITIONSDEFAULT CON
Page 26 and 27: OPERATIONcapacitors (test voltage =
Page 28 and 29: OPERATIONRange Change Points When A
Page 30 and 31: OPERATIONwhere T s = settling time,
Page 32 and 33: OPERATIONCONNECTING A DEVICEThe SR7
Page 34 and 35: OPERATIONKELVIN CLIPSKelvin Clips p
Page 36 and 37: OPERATIONOPEN and SHORT CIRCUIT OR
Page 38 and 39: BINNINGOPERATIONThe SR715/720 has b
Page 40 and 41: OPERATIONVALUES FORFAIL BINS (8 & 9
Page 42 and 43: OPERATIONOption 01: GPIB/Handler In
Page 44 and 45: ACCURACYDETAILED ACCURACY SPECIFICA
Page 46 and 47: 3-3ACCURACY
Page 48 and 49: ACCURACYL + Q ACCURACYAccuracy of L
Page 50 and 51: ACCURACYC + R ACCURACYAccuracy of C
Page 52 and 53:
REMOTE PROGRAMMINGINTRODUCTIONThe S
Page 54 and 55:
REMOTE PROGRAMMINGDETAILED COMMAND
Page 56 and 57:
REMOTE PROGRAMMINGByte Character Me
Page 58 and 59:
REMOTE PROGRAMMINGSR715/720 will us
Page 60 and 61:
REMOTE PROGRAMMING8 Instrumentation
Page 62 and 63:
REMOTE PROGRAMMINGSTANDARD EVENT bi
Page 64 and 65:
REMOTE PROGRAMMINGexit (0);}ibwrt (
Page 66 and 67:
REMOTE PROGRAMMINGTxGpib (sr720,"OU
Page 68 and 69:
REMOTE PROGRAMMINGEXAMPLE PROGRAM 3
Page 70 and 71:
REMOTE PROGRAMMING}printf ("bin 0 1
Page 72 and 73:
REMOTE PROGRAMMINGEXAMPLE PROGRAM 4
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PERFORMANCE TESTS2. Self TestsThe i
Page 76 and 77:
PERFORMANCE TESTSPERFORMANCE TESTST
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PERFORMANCE TESTSResistance Accurac
Page 80 and 81:
PERFORMANCE TESTSSR715/720 PERFORMA
Page 82 and 83:
CALIBRATIONINTRODUCTIONCalibration
Page 84 and 85:
CALIBRATIONNecessary EquipmentInstr
Page 86 and 87:
CALIBRATION3. Standard Resistor Cal
Page 88 and 89:
TROUBLESHOOTINGError MessagesThe fo
Page 90 and 91:
TROUBLESHOOTINGCalibration ErrorsTh
Page 92 and 93:
MAINTENANCEAfter the fixture bracke
Page 94 and 95:
MAINTENANCE6-8
Page 96 and 97:
SR715/720 PARTS LISTREF. SRS PART#
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Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106:
SR715/720 PARTS LISTMiscellaneous a
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Model SR715 Model SR720 LCR Meters

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