Fluke 225C User Manual - Page 148
Bushealth Measurements, Appendix
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Appendix A Bushealth Measurements Introduction This Appendix contains information to extend the information presented in Chapter 6 of this manual. The purpose of this appendix is to give more information on how to connect Probe(s) and Ground Lead(s) to the Fieldbus system under test. Bear in mind however that due to the variety of Bus Standards and Connectors used worldwide it is impossible to cover all situations. The connection solutions in this appendix cover those most commonly found. General The Bushealth measurement is based upon the test tool's Scope mode. In addition to that it selects settings that are optimized to the signal characteristics of the selected Bus Type. The captured waveform(s) are compared to voltage and timing criteria belonging to the tested Bus Type. This results in quality information of these criteria (OK, marginal, or out of range). Caution Fieldbusses often are controlling delicate processes that must not be disturbed. It is strongly recommended to contact the system manager before any connections are made! A-1