Azbil Corporation
Model
KFPA
,
KFTA
- Field Mount type Pressure Indicating Controllers
9
2-2-3: Manual controller unit
The manual controller unit consists of a pressure regulator for manual pressure setting
and an AUTO/MAN transfer switch.
When in the automatic mode (the lever is set in the A position), the output air pressure
gauge indicates the automatic control output pressure; when the check button is
pressed, the gauge indicates the regulator output pressure (manual controller output
pressure).
When in the manual mode (the lever is set in the M position), the output pressure of
the regulator is led to the reset chamber of the controller unit and, at the same time, it
is indicated by the output pressure gauge and applied to the control valve for remote
control operation. If the check button is pressed in this case, the pressure gauge
indicates the controller output pressure.
Figure 8
Figure 9 Diagram of manual
controller unit
Balance check button
Auto/manual transfer lever
Loading pressure knob
A
M
Check
Button
Output air
pressure gauge
Output
pressure
Air supply
Integral
(reset)
chamber
Controller output
Feedback
chamber
