Azbil KFDB, User Manual

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(a) Propor Manual Reset (b) ON/OFF Action (c) Differential Gap Action
Fig. 1-9. Operating Principles
1-6-4. Manual Loader Unit
This unit is comprised of a pressure regulator for manual loading pressure setting, an AUTO/
MAN transfer lever, a check switch, etc.
When in the AUTO mode (the transfer lever set in the A position), the controller output
gauge indicates the automatic control output pressure of the controller. As you press the check
button, the gauge indicates the pressure regulator output (manual loading pressure).
When in the MAN mode (the transfer lever set in the M position), the pressure regulator
output is fed to the integral (reset) chamber of the proportional unit and directly indicated by
the controller output meter in order to be used as a remote control signal for such device as a
valve.
If you press the check button when in this state, the gauge indicates the automatic control
output pressure.
Fig. 1-10. Manual Loader Unit