Flux Flow Monitoring

The Flux Flow Monitoring system uses a Bronkhorst Digital Liqui-Flow meter. The Liquid Mass Flow Meter is capable of measuring low flow rates of (6-200g/hour).



This provides flow rate data to the Pillarhouse Selective Soldering System. This data is then logged for each process cycle.

Principle of Operation

The sequence of operation is:

  1. During a process cycle each time the flux spray is switched on the Flow sensor starts sampling the flow rate every 10mSec.
  2. When the flux spray is switched off the sampling stops.
  3. At the end of a complete process cycle the total flux used is calculated.
  4. This data value is then compared to the expected flux quantity ± the tolerance value. If the data value is outside these limits then an error message is generated.
  5. The flux quantity value is then logged as part of the ‘Board Processed’ message. If an error is detected and the Pillarhouse system is in auto-cycle then a Red error is generated and the auto-cycle is stopped.

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