Aalborg SDPROCs - Manual (Page 31)

26
There are three program options for multi channel SDPROC: BATCH, TIMER and RATIO
flow control.
e.3.10.1 Batch Program Settings Display
Batch Flow Control allows execution of a custom, user preset program of up to sixteen
steps. During execution of the program the user can activate or deactivate the LOOP
mode. Various flow configurations may be pre-programmed: ramping, pulsing, lin-
earized increasing and/or decreasing of the flow. Before executing, the program should
be entered in the program table in the format: SETPOINT [% F.S.] - TIME [sec.]. TIME
means: time it takes for the value of the output signal from a mass flow controller to
linearly approach SETPOINT value (ramping). Press the UP button under BATCH on the
display, to set up the BATCH table. The following display will appear.
Time Settings for first step of the BATCH table
Pressing (+) or (-) will increment or decrement the step time settings per 1, 10 or 100
seconds (depending on the value of the multiplier M) respectively. The maximum valid
value is 99999 seconds. Pressing the (+) button one more time will rollover time settings
to zero. The same is true for 0 seconds, pressing the (-) button will rollover time settings
to 99999 seconds. Press the ENTER button under MULT on the display, to change the
value of the multiplier to 10. Continuing to press the ENTER button under MULT on the
display, will change the value of the multiplier first to 100 and then back to 1.
When complete with TIME settings for the first step of the Batch program, press the
ESC button under NEXT on the display, to go to the SETPOINT screen.
The following display will appear.
Set Point Settings for first step of the BATCH table
Pressing (+) or (-) will increment or decrement the step set point settings per 0.1% F.S.
respectively. When complete with SET POINT settings for the first step of the Batch
program, press the ENTER button under NEXT on the display, to go to the next step.
Continue with Time and Set point settings for as many steps as required for your appli-
cation (16 is maximum limit). When complete with all settings for the Batch program
press the Esc button under EXIT on the display, to go to the BATCH control screen. The
following display will appear.