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Appendix “c” - application 57, Appendix “c” - application – Red Lion LEGEND User Manual

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A food processor manufacturing cheese must meter 500 gallons of milk into

an open tank for the first step of preparation. The manufacturer wants to
monitor the process and have a batch count of the number of processes.
Reading the flow rate to ensure milk is not pumped at a speed that would create
foaming and therefore overflow the kettle would be desirable. A Legend
model LGB unit is installed to handle this application.

The Process and Rate displays are programmed with the proper scale

factors, scale multipliers, and for the Rate display the rate conversion factor.
Preset 1 is programmed at 480 for slow down and Preset 2 at 500 to stop the
process. Output 3 is assigned to the Batch display and preset 3 is programmed
so that after 100 processes the output will activate. Outputs 1, 2 & 3 are
programmed for the latch mode. Output 4 is assigned to the Rate display and
Preset 4 is programmed so that if the flow rate exceeds 75 gpm a warning
indicator will light. Output 4 is programmed for the boundary mode.

Display 1 is programmed to view the Process and Batch count, Display 2

the Process and Rate, Display 3 Rate Peak and Output status, and Display 4
Preset 1 and Preset 2.

APPENDIX “C” - APPLICATION