Chapter 532 SCS 450 Serial Interface Installation & Service ManualSystem FeaturesData MenuPressing the DATA MENU button displays the menu options by name and the default setting. Use the arrowkeys to scroll through the menu options.Menu Option FunctionPRINT FIELD BEGINSends data through the serial port to the attached printer (optional - not supplied byRaven) to Print Field Begin and Print Field End pages. Pressing CE will toggle betweenthe two pages.1. Press ENTER to print the Print Field Begin. The display will now showPRINT FIELD END.2. PRESS ENTER to print the Print Field End.ALARM ONTurns the audible alarms on and off for the Vol/Minute Rate Fault, Volume/Area RateAlarm, and Low Tank Fault features. Pressing CE will toggle between Alarm On andAlarm Off.DISPLAY SMOOTHINGONTurns display smoothing on and off. Display Smoothing On adjusts the console todisplay the target rate when the actual rate is within 10% of the target rate. DisplaySmoothing Off displays the actual target rate. Pressing CE will toggle between the twosettings.RATE CHANGEALARM ONTurns the rate change alarm on and off. When the Rate Change Alarm is on, the alarmemits four long beeps when the RATE 1 calibration number is changed via the serial portusing a valid change request data string. Pressing CE will toggle between the twosettings.GPS FILE REF 1 This application is not currently used in the SCS 450 system.GPS INACTIVE This application is not currently used in the SCS 450 system.FIELD REF 0 Allows the user to enter up to a four-digit number to represent a field. Field reference isincluded in the field begin and field end pages and the data logger time/date string.BAUD RATE 9600 Used in the GPS logging mode. The baud rate option is 1200 - 9600 baud.DATA LOG TRIGGERVALUE 0Used in the data logging mode. The trigger determines how often the actual rate datastring is sent to the serial port. The trigger may either be in feet/meters or seconds. Thedefault value is set to zero. This value must be changed to a number ranging from 1 -9999, or the data logger feature will not work.DATA LOG TRIGGERUNITS FEETUsed in the data logging mode. The trigger may either be in feet/meters or seconds.Pressing CE will toggle between the FEET (METER) and SEC.DATA LOG OFFTurns the data logger on and off.Note: The trigger value must be set to a figure other than zero in order totoggle DATA LOG to ON.PRESS ENTER TOCAL PRESSURE Used to set the zero point of the pressure transducer for pressure display.OFF RATE PERCENT30Used to set the percent of off-target value. The alarm sounds when the actual rate is offfrom the target rate by a specified percentage. The off-target value is preset to 30%, butmay be changed to a different number.