3. Ensure that the matrix is configured correctly.
4. Adjust the concentration value by applying an offset. See Adjust concentration measurement with
Trim Offset.
14.13 Milliamp output problems
Table 14-3: Milliamp output problems and recommended actions
Problem Possible causes Recommended actions
No mA output • Output not powered
• Wiring problem
• Circuit failure
• Verify that the output loop is powered
externally.
• Check the power supply and power supply
wiring. See Check power supply wiring.
• Verify the output wiring.
• Check the Fault Action settings. See Check
mA Output Fault Action.
• Contact customer service.
Loop test failed • Output not powered
• Power supply problem
• Wiring problem
• Circuit failure
• Verify that the output loop is powered
externally.
• Check the power supply and power supply
wiring. See Check power supply wiring.
• Verify the output wiring.
• Check the Fault Action settings. See Check
mA Output Fault Action.
• Contact customer service.
mA output below
4 mA
• 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
• Check your process conditions against the
values reported by the device.
• Verify the receiving device, and the wiring
between the transmitter and the receiving
device.
• Check the settings of Upper Range Value
and Lower Range Value. See Check Lower
Range Value and Upper Range Value.
• Check the Fault Action settings. See Check
mA Output Fault Action.
Troubleshooting Configuration and Use Manual
March 2021 MMI-20020954
136 Micro Motion Gas Specific Gravity Meters (SGM)
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