Emerson Micro Motion 4200 - Page 184

Recommended actions
1. Check the power supply and power supply wiring.
2. Verify the output wiring.
3. Check the Fault Action settings.
4. Verify channel configuration for the affected mA output.
5. Contact customer service.
15.10.3 mAO below 4 mA
Cause
• Output not powered
• Open in wiring
• Bad output circuit
• Process condition below LRV
• LRV and URV are not set correctly
• Fault condition if Fault Action is set to Internal Zero or Downscale
• Bad mA receiving device
Recommended actions
1. Check your process conditions against the values reported by the device.
2. Verify the receiving device, and the wiring between the transmitter and the receiving device.
3. Check the settings of Upper Range Value and Lower Range Value.
4. Check the Fault Action settings.
5. Verify channel configuration for the affected mA Output.
15.10.4 Constant mAO
Cause
• Incorrect process variable assigned to the output
• Fault condition exists
• Non-zero HART address (mA Output 1)
• A loop test is in progress
• Zero calibration failure
• mA Output Direction not set correctly
Recommended actions
1. Verify the output variable assignments.
2. View and resolve any existing alert conditions.
3. Check the direction parameters.
Troubleshooting Configuration and Use Manual
April 2019 MMI-20048166
184 Micro Motion 4200 Transmitters