Aalborg SDPROCs - Manual (Page 19)

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To change Totalizer Action in NONE, BUZZER or VALVE, press the button (ESC, UP,
DOWN respectively) directly below the text shown on the display. If Buzzer action is
chosen, the audible signal will be activated when Totalizer conditions become true.
ƽ In order to deactivate the audible signal during operation press any button on
the key pad (NOTE: The Totalizer has to be reset to zero or disabled).
If Valve action is chosen, the power to the mass flow controller valve will be shut off,
allowing the valve to mechanically close.
ƽ If the Valve was shut off as a result of the Totalizer action, in order to go back
to normal operation the Valve mode has to be changed to AUTO (See section
e.2.3). NOTE: The Totalizer reading has to be reset to zero or Totalizer has to be
disabled prior any attempts to change the Valve mode.
To return to the Main Display, press the ENTER button under EXIT on the display.
e.2.9 Program Settings Display
From the Setup Channel Display (see section e.2.6) press the Enter button under PROG
on the display in order to make Program settings. The following display will appear.
There are two program options: BATCH and TIMER flow control.
e.2.9.1 Batch Program Settings Display
The Batch Flow Control allows execution of custom, user preset programs of up to six-
teen steps. During execution of the program the user can activate or deactivate the
LOOP mode. Various flow configurations may be preprogrammed: ramping, pulsing,
linearized 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 mass flow controller
to linearly approach the SETPOINT value (ramping). Press the DOWN 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 set-
tings to zero.