Reference Manual
Rosemount 4500
Alarm and Saturation Levels for Burst Mode
AMS
Right click on the device, select “Device Configuration”, then select “Alarm/Saturation Levels,” then “Alarm Levels” from the menu.
1.Click Next after setting the control loop to manual.
2.Click Next after acknowledging the current alarm levels.
3.Select the desired alarm settings: NAMUR, Rosemount, Other
4.If “Other” is selected, enter desired “HI Value” and “LO Value” custom values.
5.Click Next to acknowledge new alarm levels.
6.Select Next to acknowledge the loop can be returned to automatic control.
7.Select Finish to acknowledge the method is complete.
8.Right click on the device, select “Device Configuration,” then select “Alarm/Saturation Levels,” then “Alarm Levels” from the menu.
9.Select Saturation Levels.
10.Repeat steps 2 - 8 to configure saturation levels.
Transmitters set to burst mode handle saturation and alarm conditions differently.
Alarm Conditions:
•Analog output switches to alarm value
•Primary variable is burst with a status bit set
•Percent of range follows primary variable
•Temperature is burst with a status bit set
Saturation:
•Analog output switches to saturation value
•Primary variable is burst normally
•Temperature is burst normally
Alarm and Saturation Values for Multidrop Mode
Transmitters set to multidrop mode handle saturation and alarm conditions differently.
Alarm Conditions:
•Primary variable is sent with a status bit set
•Percent of range follows primary variable
•Temperature is sent with a status bit set
Saturation:
•Primary variable is sent normally
•Temperature is sent normally