Aalborg SDPROCs - Manual (Page 17)

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e.2.7.4 Setup Alarm Delay Display
Alarm Delay specifies the time interval in seconds the Alarm conditions have to be True
(without any interruption) before Alarm will be activated. If zero value is set, the Alarm
will be activated immediately after Alarm conditions are met. Pressing (+) or (-) will
increment or decrement Alarm Delay settings per 1 second respectively. If no settings
required for Alarm Action press the ENTER button under EXIT on the display, to go
back to the Main Display. Press ESC button under NEXT on the display go to the Alarm
Action settings. The following Setup Alarm Action Display will appear.
e.2.7.5 Setup Alarm Action Display
To change Alarm 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 Alarm conditions become true.
ƽ In order to deactivate the audible signal during operation press any button on
the key pad.
(NOTE: The Alarm Conditions have to be removed or Alarm has to be 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 Alarm 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 Alarm Conditions have to be removed, or Alarm has to be
disabled prior to any attempts to change the Valve mode.
To go back to the Main Display, press the ENTER button under EXIT on the display.
e.2.8 Setup Totalizer Display
Before enabling the Totalizer make sure that all totalizer settings are configured proper-
ly. The totalizer Start value has to be entered in %F.S. engineering units. Totalizer will not
totalize until the flow rate become equal or more than Totalizer Start value. Totalizer Stop
value has to be entered in volume / mass based engineering units. Totalizer conditions
become valid when the totalized volume is equal or more than Totalizer Stop value. From
the Setup Channel Display (see section e.2.6) press Down button under TOTAL on the
display in order to make Totalizer settings. The following Setup Totalizer Mode Display
will appear.