Thermo Fisher Scientific Alpha pH 2000 - Manual (Page 52)

11.4 Appendix 4 – General instructions concerning Controller Setting
11.4.1 Control characteristic of Controllers used as limit value switch
MIN Function MAX Function
Xp = 0 Xp = 0
SP 1 SP 2
+ Xw - Xw
Yh
0 %
50 %
100 %
11.4.2 Control characteristic of P-Controller as proportional controller
MIN Function MAX Function
Xp
Prop. Band
Xp
Prop. Band
SP 1 SP 2
+ Xw - Xw
Yh
0 %
50 %
100 %
11.4.3 Control characteristic of PI-Controller as a proportional integral
controller
SP1 SP 2
10%
Proportional. band
X
P
Prop. band
X
P
20%
25%
100%
50%