Split Ratio setting in 7890 B GC:

Cannot enter split ratio of 50:1. During input, the split limit displayed 0.1 to 25, where column flow is 7.525 ml/min and a split flow of 20 ml/min. Column dimensions are 30 x 530 and 3 micron. Within this specification, how can I set a 50:1 split ratio?

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