Watlow CLS200 Manual de usuario Pagina 143

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CLS200 Series User’s Guide Chapter 6: Enhanced Features
Doc.# 0600-3050-2000 Watlow Anafaze 127
Figure 6.8 Application Using Ratio Control
To set up this application, you would do the following:
1. Adjust and tune loop 1 (H
2
O) for optimal performance
before implementing the ratio setup.
2. Switch the controller to display loop 2 (KOH), and
then enter the three-key sequence (
ENTER
, then
ALARM
ACK
, then
CHNG SP
) and go to the first screen in
Table 6.3.
3. Follow the steps in Table 6.3 to configure ratio control.
CLS200
Loop 1 PID Output
Loop 2 PID Output
Loop 1 Input
Process Variable
Loop 2 Input
Process Variable
Motorized Control Valve 2
Motorized
Control
Valve 1
Mixture Output
Water Input
KOH Input
Flow
Transducer
Loop 1: Water Flow Control Loop
Loop 2: KOH Flow Control Loop
Serial
DAC
Serial
DAC
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