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Preparation for Use

INSTRUMENT DESCRIPTION

PREPARATION FOR USE

QUICK START INSTRUCTIONS

OPERATING INSTRUCTIONS

PROGRAMMING & INTERFACING

SERVICE INFORMATION

APPENDIX

Model 3550 LCR Meter Instruction Manual 2-1

Main Page

Table of Contents3
Instrument Description9
Feature Overview10
Options and Accessories12
Performance Specifications13
- Table 1.2 – Model 3550 Measurement Frequencies15
- Table 1.4 – Model 3550 Amplitude Accuracies16
- Table 1.6 – Typical Analog Measurement Times17
- Table 1.7A – Absolute Comparator Operation19
- I Instrument Description21
- Table 1.9 – Series and Parallel Equivalent Circuit Measurements22
Unpacking and Inspection26
Servicing Safety Summary28
Line Voltage and Fuse Selection29
Power the Unit32
Table 3.3 – Shift Function Summary34
Instrument Setup for Basic Measurements35
Setting the Absolute Comparator36
Setting the Percent Comparator37
Basic Operation40
Measurement Circuit Modes41
Negative Capacitance or Inductance Readings42
- Test Lead Requirements43
Measurement Signal Levels44
Front Panel Description45
Power Switch46
Zero Panel47
Shift Key48
- Test Voltage Set Mode49
- Averaging Set Mode50
- Comparator Buzzer Function51
- Comparator Functions Mode52
- RS-232C Settings Mode53
- Correction Frequency Limit Setting Mode54
Unknown Terminals Panel55
Remote Interface Status Leds56
Comparator State Annunciators57
Display C Measurement Panel58
Table 4.4 – CV/CC Indicators59
Rear Panel Description60
Making Accurate Measurements61
Test Fixture Selection62
Table 4.5 – Impedance and Frequency Limitations of the SMD Test Fixture63
Zero Corrections64
Figure 4.4 – Terminal Connections for Zero Correction65
Equivalent Circuits66
Table 4.7 – Equivalent Circuit Relationships67
Operating the 355068
Measuring |Z| and |Y|71
The Comparator73
Absolute Value Settings74
Percent Value Settings75
Bin Operation77
Figure 4.6 – Nested bin Sorting78
Outputting the Comparator's Results79
Interfacing to the 355082
Outputs83
Timing Diagrams84
- Table 5.1 – Connector Pin Designations85
- Table 5.2 – Control I/O Function Summary86
- Sample Diagram of External Connections to Sequencer87
- Rs-232C88
- Table 5.4 - Comparator Instructions94
Data Output Format for Measurement Settings95
- Table 5.5A – Data Output Code Functions96
- Table 5.5B – Data Output Code Functions Cont'D97
Monitor Output Format98
Table 5.6B – Monitor Output Code Functions Cont'D102
RS-232C Hardware and Computer Settings103
The GPIB Interface (Optional)108
Installation of the GPIB Board109
Figure 5.4B – Side View110
Local Key Switch111
Output Status Bits for Service Requests112
Programming Examples113
Warranty Limitations116
Repair Parts117
Troubleshooting118
- Preparation for Repair or Calibration Service119
Expedite Repair and Calibration Form120
Model 3550 Calibration Adjustment Procedure126
- Setting the Constant Voltage Mode129
- VII Appendix129
Setting the Constant Current Mode130

Tegam 3550 - Page 25

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