Emerson 4500 Manuel D’Utilisation
Reference Manual
00809-0100-4027, Rev AA
December 2005
December 2005
3-13
Rosemount 4500
AMS
Right click on the device, select “Device Configuration”, then select
“Alarm/Saturation Levels,” then “Alarm Levels” from the menu
“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.
Alarm and Saturation
Levels for Burst Mode
Levels for Burst Mode
Transmitters set to burst mode handle saturation and alarm conditions
differently.
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
Values for Multidrop
Mode
Transmitters set to multidrop mode handle saturation and alarm conditions
differently.
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