Download Operation Manual 11/2008

Chapter 6: Enhanced Features
MLS300 Series User’s Guide
KOH Input
Water Input
Loop 1: Water Flow Control Loop
Loop 2: KOH Flow Control Loop
Loop 1 Input
Process Variable
Flow
Transducer
Loop 1 PID Output
Loop 2 Input
MLS300
Loop 2 PID Output
Process Variable
Motorized Control Valve 2
Motorized
Control
Valve 1
Serial
DAC
Serial
DAC
Mixture Output
Figure 6.8
Application Using Ratio Control
To set up this application, you would do the following:
150
1.
Adjust and tune loop 1 (H2O) 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.
Watlow Anafaze
Doc.# 0600-3070-2000