Emerson AMS Trex Device Communicator User Manual page 144

Loop Diagnostics application
September 2021
4.10
4.10.1
144
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• Tap the pencil icon to set a mA value.
6. Wait for the valve to move.
7. Repeat steps 5 and 6 until the valve moves through all the required positions.
8. To stop powering the device, do one of the following:
Tap Trex Unit Power to set the option to OFF. You are prompted to select a
•
power option to set the position of the valve.
Tap Exit. You are prompted to select a power option to set the position of the
•
valve.
• Remove the lead set from the Trex unit. You are not prompted to select a power
option to set the position of the valve.
Settings for controlling current
Change the values for the quick buttons
The Loop Diagnostics screen has five buttons that have default values of 4 mA, 8 mA, 12
mA, 16 mA, and 20 mA. These buttons let you quickly change the current. You can change
the value for each button.
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