Emerson Micro Motion 9739 MVD Configuration And Use Manual page 145

Configuration and Use Manual
MMI-20016855
b) Verify the signal at the receiving device.
c) At the transmitter, activate Select.
d) Scroll to and select SET OFF.
e) Verify the signal at the receiving device.
f) At the transmitter, activate Select.
4. Test the Discrete Input.
a) Set the remote input device to generate a known fixed current.
b) At the transmitter, choose OFFLINE MAINT → SIM, and select READ DI.
c) At the transmitter, activate Select.
d) Verify the signal at the transmitter.
e) Repeat the procedure for the other signal state.
5. Test the mA Input.
a) Set the remote input device to generate a known fixed current.
b) At the transmitter, choose OFFLINE MAINT → SIM, and select READ MAI.
c) Verify the current value.
Postrequisites
• If the mA Output readings are within 20 microamps of the expected values, you can correct this
discrepancy by trimming the output.
• If the discrepancy between the mA Output readings is greater than 20 microamps, or if at any step the
reading was faulty, verify the wiring between the transmitter and the remote device, and try again.
• If the mA Input reading was slightly off at the transmitter, calibrate the mA signal at the remote input
device.
If the Discrete Input readings are reversed, check the setting of Discrete Input Polarity.
•
10.16.2 Perform loop tests using ProLink III
Prerequisites
Before performing a loop test, configure the channels for the transmitter inputs and outputs that will be used
in your application.
Follow appropriate procedures to ensure that loop testing will not interfere with existing measurement and
control loops.
Procedure
1. Test the mA Output(s).
a) Choose Device Tools → Diagnostics → Testing → mA Output Test.
b) Enter 0 or 4 in Fix to:.
c) Click Fix mA.
Configuration and Use Manual
Troubleshooting
June 2019
145