Emerson Micro-Motion 2400S Configuration And Use Manual page 142

Troubleshooting
Table 11-2 I/O problems and remedies
Symptom
No output
Loop test failed
mA output < 4 mA
134
Possible cause
Power supply problem
Channel not configured for desired
output
Incorrect internal/external power
configuration
Output not powered
Process condition below LRV
Fault condition if fault indicator is set to
internal zero or downscale
Open in wiring
Bad mA receiving device
Bad output circuit
Incorrect internal/external power
configuration
Output not powered
Possible remedy
• Check power supply and power supply wiring.
See Section 11.14.1.
• Verify channel configuration for associated
output terminals. See Section 6.3.
• Internal means that the transmitter will supply
power. External means that an external pull-up
resistor and source are required. Refer to your
transmitter installation manual for wiring, and
verify configuration (see Section 6.3).
• Check transmitter wiring. See the transmitter
installation manual.
• Verify process.
• Change the LRV. See Section 6.5.2.
• Check the fault indicator settings to verify
whether or not the transmitter is in a fault
condition. See Section 6.5.5.
• If a fault condition is present, see Section 11.7.
• Verify all connections.
• Check the mA receiving device or try another
mA receiving device. See Section 11.16.
• Perform output simulation to locate the
problem. See Section 11.10
• Measure DC voltage across output to verify
that output is active.
• Perform output simulation to locate the
problem. See Section 11.10
• Internal means that the transmitter will supply
power. External means that an external pull-up
resistor and source are required. Refer to your
transmitter installation manual for wiring, and
verify configuration (see Section 6.3).
• Check transmitter wiring. See the transmitter
installation manual.
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Micro Motion Model 2400S Transmitters with Analog Outputs
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