Emerson Rosemount 775THUM Reference Manual page 35

Reference Manual
00809-0100-4075
3.7.2 Perform Loop Current Test Using Field Communicator
(Fixed Voltage Drop)
Procedure
1. When communicating to the THUM Adapter, select Configure → Manual setup →
2. In the method, select Fixed Voltage Drop.
3. Verify the current on the loop reaches the high alarm levels.
4. Place the THUM Adapter into variable voltage drop mode.
3.7.3 Perform loop current test using AMS Device Manager
(Variable Voltage Drop)
Figure 3-20: AMS Device Manager Configure Screen
Procedure
1. Right-click on the THUM Adapter and select Configure.
2. When the menu opens, select Manual Setup from the window on the left and select
3. Make sure the Time drop down menu at the bottom of the page has Current
4. Under the Voltage Drop drop down menu in the Smart Power Options box, select
5. Select Apply to make any changes.
Emerson.com/Rosemount
Wired Device → Voltage Drop Mode.
Function
Voltage Drop
the Wired Device tab on the top.
selected.
Variable Voltage Drop.
Key sequence
2,2,2,2
Mounting
January 2023
Menu items
Voltage Drop
35