Emerson Micro-Motion 2400S, Configuration And Use Manual, Page: 146 / 198

138 Micro Motion
®
Model 2400S Transmitters with Analog Outputs
Troubleshooting
Table 11-4 Status alarms and remedies
Alarm
code
Communicator
Cause Suggested remedy ProLink II
A001 EEprom Checksum
Error (Core
Processor) An uncorrectable
checksum mismatch has
been detected. • Cycle power to the flowmeter.
• The flowmeter might need service. Contact Micro
Motion. See Section 11.3.
(E)EPROM
Checksum Error
(CP)
A002 RAM Test Error
(Core Processor) ROM checksum error or a
RAM location cannot be
written to. • Cycle power to the flowmeter.
• The flowmeter might need service. Contact Micro
Motion. See Section 11.3.
RAM Error (CP)
A003 Sensor Not
Responding (No
Tube Interrupt) Continuity failure of drive
circuit, LPO, or RPO, or
LPO-RPO mismatch when
driving. • Check for slug flow. See Section 11.17.
• Check the test points. See Section 11.24.
• Check the sensor circuitry. See Section 11.25.
• Check sensor tubes for plugging.
• If the problem persists, contact Micro Motion. See
Section 11.3.
Sensor Failure
A004 Temperature
sensor out of range Combination of A16 and
A17 • Check the sensor RTD circuitry. See Section 11.25.
• Verify that process temperature is within range of
sensor and transmitter.
• If the problem persists, contact Micro Motion. See
Section 11.3.
Temperature
Sensor Failure
A005 Input Over-Range The measured flow has
exceeded the maximum
flow rate of the sensor
(
Δ
T > 200
μ
s)
• If other alarms are present (typically, A003, A006,
A008, A102, or A105), resolve those alarm
conditions first. If the A005 alarm persists, continue
with the suggestions here.
• Verify process and check for slug flow. See
Section 11.17.
• Check the test points. See Section 11.24.
• Check the sensor circuitry. See Section 11.25.
• Check the sensor tubes for erosion. See
Section 11.18.
• If the problem persists, contact Micro Motion. See
Section 11.3.
Input Overrange
A006 Transmitter Not
Characterized Combination of A020 and
A021 • Check the characterization. Specifically, verify the
FCF and K1 values. See Section 6.2.
• If the problem persists, contact Micro Motion. See
Section 11.3.
Not Configured
A008 Density Outside
Limits The measured density has
exceeded 0–10 g/cm
3
• If other alarms are present (typically, A003, A006,
A102, or A105), resolve those alarm conditions first.
If the A008 alarm persists, continue with the
suggestions here.
• Verify process. Check for air in the flow tubes, tubes
not filled, foreign material in tubes, or coating in tubes
(see Section 11.18).
• Check for slug flow. See Section 11.17.
• Check the sensor circuitry. See Section 11.25.
• Verify calibration factors in transmitter configuration.
See Section 6.2.
• Check the test points. See Section 11.24.
• If the problem persists, contact Micro Motion. See
Section 11.3.
Density Overrange