Thermo Fisher Scientific Alpha pH 1000 - Manual (Page 38)

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12.4 Appendix 4
General Instructions Concerning Controller Setting
Xp
0%
50%
100% Yh
-Xw +Xw
Xp
Prop. band Prop. band
SP 2 SP 1
MIN function MAX function
Control characteristic of P-Controller as proportional controller
Xp = 0 Xp = 0
0%
50%
100% Yh
-Xw +Xw
SP 2 SP 1
MIN function MAX function
Control characteristic of P-Controllers as limit value switch
Characteristics of Pulse Length and Pulse Frequency
Relay
ON
tON tOFF
Pulse Length T
OFF
Time [s]
Controller signal of Pulse length controller