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Difference between revisions of "ORBIGate Manual User's guide"
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* Delta RPM or Delta Time: The data is saved with a "or" condition. It is saved every DeltaRPM steps or DeltaTime steps depending on which comes first. This trigger type is especially interesting when machines go through a start-up with a sequence of Run-up sessions and stable speeds sessions. | * Delta RPM or Delta Time: The data is saved with a "or" condition. It is saved every DeltaRPM steps or DeltaTime steps depending on which comes first. This trigger type is especially interesting when machines go through a start-up with a sequence of Run-up sessions and stable speeds sessions. | ||
[[Image:OBG_7_analysis_trigger.png]] | [[Image:OBG_7_analysis_trigger.png|400px]] | ||
''nx Recording, free run sampling'' | ''nx Recording, free run sampling'' | ||
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'''Delta Time''' is used to collect data for a specific amount of time. | '''Delta Time''' is used to collect data for a specific amount of time. | ||
[[Image:ORBIGate_66.jpg| | [[Image:ORBIGate_66.jpg|400px]] | ||
''nX Recording, Delta Time sampling'' | ''nX Recording, Delta Time sampling'' | ||
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'''Delta RPM''' is used to collect data every increase (or decrease) of the rotating speed. | '''Delta RPM''' is used to collect data every increase (or decrease) of the rotating speed. | ||
[[Image:ORBIGate_67.jpg| | [[Image:ORBIGate_67.jpg|400px]] | ||
''nX Recording, Delta RPM sampling'' | ''nX Recording, Delta RPM sampling'' | ||
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In some cases it is interesting to be able to mix the two above conditions as shown in the window below. | In some cases it is interesting to be able to mix the two above conditions as shown in the window below. | ||
[[Image:ORBIGate_68.jpg| | [[Image:ORBIGate_68.jpg|400px]] | ||
''nX recording, the Delta RPM or Delta Time sampling'' | ''nX recording, the Delta RPM or Delta Time sampling'' | ||
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As a matter of fact, when the machine start-up is made of run ups and stable speed sequences as displayed on the figure below, it is interesting to alternate the delta RPM condition and delta time. In that case, the software detects which condition comes first. The amount of saved data is optimized: a high sampling during the run up periods (using delta RPM) and a lower sampling during the stabilization periods. These periods can be very long and often don<nowiki>’</nowiki>t have many changes in terms of vibrations. | As a matter of fact, when the machine start-up is made of run ups and stable speed sequences as displayed on the figure below, it is interesting to alternate the delta RPM condition and delta time. In that case, the software detects which condition comes first. The amount of saved data is optimized: a high sampling during the run up periods (using delta RPM) and a lower sampling during the stabilization periods. These periods can be very long and often don<nowiki>’</nowiki>t have many changes in terms of vibrations. | ||
[[Image:ORBIGate_69.jpg| | [[Image:ORBIGate_69.jpg|400px]] | ||
''A typical machine start-up'' | ''A typical machine start-up'' | ||