The Field Communicator displays Fld dev output 20.00 mA equal to
reference meter?
11. Using Up or Down, select 1 Yes or 2 No and press ENTER.
If No, the process repeats from Step 6.
The Field Communicator displays NOTE: Loop may be returned to
automatic control.
5.5.2 COe D/A trim using HART
®
If necessary, refer to Figure 5-3 for the HART menu tree.
Note
To select a menu item, either use Up and Down to scroll to the menu item and
press Right or use the number keypad to select the menu item number. To return
to a preceding menu, press Left.
Procedure
1. From the DIAG/SERVICE menu, select D/A TRIM.
The Field Communicator displays O2 D/A Trim.
2. Press Up or Down to select COe D/A TRIM.
3. Press Right to start the procedure.
If you wish to exit D/A Trim with no changes, select ABORT.
The Field Communicator displays WARNING: Loop should be removed from
automatic control.
4. Remove the transmitter from any automatic control loops to avoid a
potentially dangerous operating condition and press OK.
The Field Communicator displays Connect reference meter to
Combustibles output.
5. Remove the electronics housing cover.
6. Connect a digital multimeter to read the milliamp output from the COe D/A
converter circuit. Connect the positive lead to the AOUT2+ terminal and
connect the negative lead to the AOUT2- terminal. Then press OK on the
Field Communicator.
Refer to Figure 2-4, Figure 2-5, and Figure 2-6.
The Field Communicator displays Setting Fld dev output to 4 mA.
7. Press OK. Read the COe milliamp output at the digital multimeter. Enter the
reading in the Field Communicator and press ENTER.
Select ABORT to exit without changes.
The Field Communicator displays Setting Fld dev output to 20 mA.
8. Press OK. Read the COe milliamp output at the digital multimeter. Enter the
reading at the Field Communicator and press ENTER.
Select ABORT to exit without changes.
The Field Communicator displays Setting Fld dev output to 4 mA.
9. Press OK.
The Field Communicator displays Fld dev output 4.00 mA equal to
reference meter?
Using HART
®
communications Manual
December 2022 00809-0500-4880
90 Emerson.com/Rosemount
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