Main Display; Channel Select; E.3.2 Main Display - Aalborg Command Module Operating Manual

e.3.2 Main Display

After a few seconds, the Start up display will clear, and the Main Display will appear.
Readings are linear 0 to 100% of full scale. Direct engineering units are available on
another screen. A proportionally linear 0 to 5 VDC or 4 to 20 mA output signal may be
monitored simultaneously at the 25 pin "D" connector at the back of the SDPROC (see
section b.2.4). Press the Down button under the Main Display screen, to set the GEN-
ERAL, ALARM, TOTALIZER and PROGRAM settings (see section e.3.6).
e.3.3 Channel Select
There are three modes of operation that the mass flow controller can be set for. CLOSE
will shut off the power to the mass flow controller valve, allowing the valve to mechan-
ically close. OPEN will provide maximum power to the valve to allow it to open fully.
This mode is used when there is a need to purge the gas flow system. AUTO mode will
allow the mass flow controller to maintain a given flow as set by the user or program.
Each channel is independent of the other, and therefore each will need to be set.
The basic display/menu elements for the two, three, and four channel SDPROC's are
essentially identical with the exception of the number of channels available.
To operate the mass flow controller in CLOSE, OPEN or AUTO modes, press the ENTER
button directly below the display screen.
Press the button on the SDPROC panel under the appropriate channel number dis-
played. This will select that channel for control configuration. (For this manual, chan-
Main Display for 2 channel SDPROC
Main Display for 3 channel SDPROC
Main Display for 4 channel SDPROC
Channel Select Display Multi channel SDPROC
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