MKS 651D Series, Руководство пользователя, Страница: 72 / 162

Operation Chapter Four: Local Operation
60
How To Control the Valve
The 651 unit can drive the throttle valve to full open or full close, or halt at its current position.
Note
The commands to open, close, or halt the valve override the active set
point control of the valve.
How To Drive the Valve to Full Open
To drive the valve to full open:
1. Press the [O
PEN
] key.
The system responds by illuminating the LED in the upper left corner of the [O
PEN
]
key, driving the throttle valve to full open, and displaying the default Pressure and
Position display screen.
How To Drive the Valve to Full Close
To drive the valve to full close:
1. Press the [C
LOSE
] key.
The system responds by illuminating the LED in the upper left corner of the [C
LOSE
]
key, driving the throttle valve to full close, and displaying the default Pressure and
Position display screen.
How To Stop the Valve
To stop (hold) the valve in its current position:
1. Press the [S
TOP
] key.
The system responds by illuminating the LED in the [S
TOP
] key, halting the throttle
valve in its current position, and displaying the default Pressure and Position display
screen.