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Operation
Procedure
Adjustment level
Execute/cancel AT
at
off
l.adj
at
on
l.adj
at
off
l.adj
Operation Level
Present value/set
c
25
value/valve open
percentage
0
100.
0
3.6 Verifying PID Constants (AT and manual settings)
Using auto-tuning (AT).
key for less than 1 second to switch from the "operation level" to
(1) Press the
the "adjustment level".
(2) Press the U key to execute AT (auto-tuning).
When AT is executing, "on" will be displayed.
"
off
(3) When AT finishes,
key to return to
Press the
(4)
"
will be displayed again.
"
operation level
"
.
3-11
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