Perform A Loop Test - Emerson Rosemount 3144P Quick Start Manual

April 2015
A. Transmitter
B. Sensor Wires
Step 6: Perform a loop test
The Loop Test
recorders or similar devices installed in the loop.
Device Dashboard - Device Revision 5 and 6, DD v1
Initiate a loop test
1. Connect an external ampere meter in series with the transmitter loop (so the
power to the transmitter goes through the meter at some point in the loop).
2. From the Home screen, select 3 Service Tools, 5 Simulate, 1 Perform Loop Test.
The communicator displays the loop test menu.
3. Select a discreet milliampere level for the transmitter to output. At Choose
Analog Output select 1 4mA, 2 20mA, or select 4 Other to manually input a
value between 4 and 20 milliamperes. Select Enter to show the fixed output.
Select OK.
4. In the test loop, check that the transmitter's actual mA output and the HART
mA reading are the same value. If the readings do not match, either the
transmitter requires an output trim or the current meter is malfunctioning.
5. After completing the test, the display returns to the loop test screen and
allows the user to choose another output value. To end the Loop Test, Select 5
End and Enter.
Initiate simulation alarm
1. From the Home screen, select 3 Service Tools, 5 Simulate, 1 Perform Loop
Test, 3 Simulate Alarm.
2. The transmitter will output the alarm current level based on the configured
alarm parameter and switch settings.
3. Select 5 End to return the transmitter to normal conditions.
B
C
C. Shield ground point
D. 4-20 mA loop
verifies transmitter output, loop integrity, and operation of any
A
D
C
Quick Start Guide
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