Check Lower Range Value And Upper Range Value; Milliamp Output Problems - Emerson Micro Motion 9739 MVD Configuration And Use Manual

Troubleshooting
June 2019
a) Press Service Tools → Simulate → Simulate Outputs → Frequency Output Test, and choose
the Frequency Output level.
b) Read the frequency signal at the receiving device and compare it to the transmitter output.
c) Choose End.
3. Test the Discrete Output(s).
a) Choose Off.
b) Verify the signal at the receiving device.
c) Press OK.
d) Choose On.
e) Verify the signal at the receiving device.
f) Press OK.
g) Choose End.
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.

10.17 Check Lower Range Value and Upper Range Value

If the process variable assigned to the mA Output falls below the configured Lower Range Value (LRV) or rises
above the configured Upper Range Value (URV), the meter will post a saturation alert (A100), then perform
the configured fault action.
Procedure
1. Record your current process conditions.
2. Check the configuration of the LRV and URV.

10.18 Milliamp output problems

Table 10-6: Milliamp output problems and recommended actions
Problem Possible causes
No mA Output •
•
148
Wiring problem
Circuit failure (rarely occurs)
Configuration and Use Manual
Recommended actions
• Check the power supply and power supply
wiring.
• Verify the output wiring.
Check the Fault Action settings.
•
• Contact customer support.
Micro Motion 9739 MVD Transmitters
MMI-20016855