Thermo Fisher Scientific Alpha DO 1000 - Manual (Page 46)

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12.4 Appendix 4 – Limit and Proportional Control Functions
MIN Function MAX Function
Xp
Prop. Band
Xp
Prop. Band
SP 1 SP 2
+ Xw - Xw
Yh
0 %
50 %
100 %
Control characteristic of P-Controllers as proportional controller
MIN Function MAX Function
Xp = 0 Xp = 0
SP 1 SP 2
+ Xw - Xw
Yh
0 %
50 %
100 %
Control characteristic of P-Controllers as limit value switch