Tegam 3550 - Repair Parts

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6-3

Model 3550 LCR Meter Instruction Manual Service Information

Repair Parts

The Model 3550 has no user replaceable parts. Available accessories are listed in Section I.

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 - Repair Parts

Table of Contents

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