Aalborg SDPROCs - Manual (Page 35)

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ƽ Make sure that the total value of the mixture is equal to 100% in the end of the
ratio settings for all required channels.
When complete with ratio value settings for all required channels, go to the ratio mode
settings screen for each required channel and change the ratio mode from DISABLED
to ENABLED.
ƽ Make sure that the reference for set point is set to PROGRAM RATIO mode for
all required channels in order for the Ratio program to be executed
(see section e.3.7.1).
In order to change the flow rate for the mixture of gases use the Set Point screen for
the master channel#1 (See section e.3.4).While adjusting the set point for the master
channel in the Ratio mode, the SDPROC will automatically check the adjusted set point
for slave channels in order to keep them within the range between 2.0 and 100% F.S.
When complete with ratio settings, press the ENTER button under EXIT on the display,
to go to the Main Display screen.
e.3.11 All Valves Control
It may on occasion be desirable to set all the channels in the flow system to the same
mode of operation simultaneously. While in the Main Display press the ESC button on
the front panel of the SDPROC. The following screen will then appear.
All Valves Control Mode Display for Multi channel SDPROC
Choosing CLOSE, OPEN, or AUTO from this menu, will apply to all channels connect-
ed to the multi channel SDPROC. After making the selection, the Main Display returns.
Select EXIT if no changes are desired. The following Real-time Clock Settings display
will appear.