User`s guide

Series D8 User’s Guide Chapter 4: Operation and Setup
Doc. 0600-3120-2000 Watlow Anafaze 109
Table 4.14 Parameter Settings for the Ratio
Loop (Loop 2) in the Example
To complete the setup, loop 2 must be configured for inputs,
outputs, and alarms. In addition, loop 1 may be configured for
outputs and alarms.
Menu Parameter Value Comment
Ratio Ratio master loop 01
Loop 1 is the master loop (receives the input
signal from the external device).
Ratio Ratio low SP 0˚F
For this example, we will assume that the pro-
cess can be set safely over the entire range of
0 to 300° F. If desired, we could set a more
restrictive range for the ratio loop.
Ratio Ratio high SP 300˚F
Ratio Control ratio 1.0
For this example, we want to retain the origi-
nal input value, so we will multiply it times 1.0.
Ratio Ratio SP diff 0
For this example, we want to retain the origi-
nal value, so we will add 0.