during initial power up. If one of the four setpoints is being edited, the remote
transducer window will become a keypad for entering new values or control
points into the selected channel. Once the setpoint is entered (by pressing the
‘=’ button) the window will revert back to displaying the remote transducer
readings. If the mode of operation is being edited, this window will allow the
mode selection of measure, control, vent or standby. Once the mode has been
selected, the window will revert back to displaying the remote transducer
readings.
To change a setpoint, touch over the current setpoint value for the desired
channel (P1, P2, P3, or P4) and the keypad menu will appear on the right. Press
the keys for the new value and than end by pressing the equal key ('=‘) to enter
the value. The new value should appear in the setpoint window. Values that are
outside of the control range will not be accepted and the user must again touch
over the current setpoint value and re-enter a valid pressure. Note: it is possible
to enter a value up to a maximum of 300 psi (2088 kPa). It is the user’s
responsibility to insure attached devices can handle the full pressure.
To change the mode of operation for a channel, touch the current displayed
mode for the particular channel (P1, P2, P3 or P4). Four buttons will be
displayed to the right allowing the modes of measure (MEAS), control (CTRL),
vent (VENT) or standby (STBY) to be selected. Once the mode has been
pressed, the mode will be changed on the control screen and the remote
transducer readings will be re-displayed.
A typical start process should include the following steps:
1. Turn Power ON using the rear panel power switch. If the EMERGENCY
SHUTOFF button has been pressed, this should be rotated clockwise to
disengage. The normally open vent valves will automatically close. The system
will interrogate the 9414 for installed control channels. This will typically be either
two or four. The system will than check for remote transducers. The system can
have one to four attached transducers. Internal transducers found will be
displayed in the main control screen with its setpoint, reading and mode. If no
internal transducer is found for a particular channel, the setpoint, reading and
mode will be blank. Remote transducers will be displayed in the lower right
status window under REMOTE as 1, 2, 3, 4 and B. The reading will also be
displayed in the remote transducer reading window on the right side of the
screen. Remote transducers are addressed as 1, 2, 3, and 4. If a barometric
transducer is included in the system, this will be addressed as 5, but will be
displayed on the status window as ‘B’ for barometer.
2. Provide the vacuum source to the system if required.
3. Provided appropriate source pressure to the system.
4. Before placing a channel in the control mode, verify that the system has no
open hoses and that connections are verified to be leak free.
