Single and Dual Input Analyzers for Low Level Conductivity
AX410, AX411, AX413, AX416, AX418, AX450, AX455 & AX456
Appendix B
IM/AX4CO Issue 11
79
B.1.2 Direct Acting Single PID Control
Direct acting control is used when the process conductivity is greater than the required output conductivity.
B.2 Ouput Assignment
The output signal is assignable to either relay 1 (Time or Pulse output type) or analog output 1 (Analog output type).
Fig. B.3 Direct Acting Single PID Control
Control
Output
100%
0%
0%
50%
100%
Direct
Acting
Process Variable Range