Adjusting The Amplifying Valve - Honeywell HON 512 User And Maintenance Manual

6.3

Adjusting the amplifying valve

Control behavior changes
achieved by adjusting the
amplifying valve
Adjusting the
amplifying valve
HON 512 with HON 650 pilot user manual
The following changes in the gas pressure regulator's control behavior can be achieved by
adjusting the amplifying valve on the pilot:
▪ If the gas pressure regulator exhibits a sluggish response to changes in the manipulated
variable, the response times can be shortened.
▪ If the gas pressure regulator's dynamic response to changes in the manipulated variable
is too fast and this results in oscillations, the gas pressure regulator's response can be
slowed down.
Proceed as follows:
Figure
If ...
You want to slow down the actuator assembly's
response
You want to speed up the actuator assembly's
response, e.g., in the case that there are oscilla-
tions
Figure
Adjusting the settings of the device
Step Description
1 Remove the cap from the amplifying valve.
then ...
Carry out step 2a and then continue to step 3.
Carry out step 2b and then continue to step 3.
Step Description
2a Use a flat-blade screwdriver to screw the
spindle (1) deeper into the sleeve turn by
turn while monitoring the actuator assem-
bly's control behavior. As soon as you
achieve the actuator assembly response
you want, stop changing the spindle's
position.
2b Use a flat-blade screwdriver to unscrew
the spindle (1) out from the sleeve turn by
turn while monitoring the actuator assem-
bly's control behavior. As soon as you
achieve the actuator assembly response
you want, stop changing the spindle's
position.
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