3-4
communicator
Fig. 3-2.
Procedure for adjusting the fully opened valve position (span)
Step Procedure
1
From the controller or from a constant current supply, provide an input signal
that corresponds to the valve fully opened (Example: 20 mA)
2
Adjust the fully opened valve position by pushing the travel switch “UP” or
“DOWN” until the valve position moves slightly.
Note) After completing Zero-span adjustment, verify accurate valve operation by varying the
input signal.
To Next Page
Loading...