Emerson 2200S Manuel D’Utilisation

107

Sensor simulation mode allows you to set values for mass flow, density, and temperature. The 
transmitter will then behave as though it was receiving those values from the sensor. Sensor 
simulation mode can be useful in a variety of troubleshooting situations. See Section 7.5 for 
information on setting up and using sensor simulation mode.

Status alarms can be viewed with the display, ProLink II, or the Communicator. A list of status alarms 
with the message displayed, possible causes, and suggested remedies is provided in Table 10-3. 

Note: Status alarms are not listed for alarms with Alarm Severity = Ignore, even if the alarm 
condition is active. See Section 5.3.1 for information on configuring status alarm severity.

Before troubleshooting status alarms, first acknowledge all alarms (see Section 8.6). This will remove 
inactive alarms from the list so that you can focus troubleshooting efforts on active alarms.

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. 

(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.

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 10.17.
• Check the test points. See Section 10.23.
• Check the sensor circuitry. See Section 10.24.
• Check sensor tubes for plugging.
• If the problem persists, contact Micro Motion. 

Sensor Failure

A004

Temperature 
sensor out of range

Combination of A16 and 
A17

• Check the sensor RTD circuitry. See Section 10.24.
• Verify that process temperature is within range of sensor 

and transmitter.

• If the problem persists, contact Micro Motion. 

Temperature 
Sensor Failure

A005

Input Over-Range

The measured flow has 
exceeded the maximum 
flow rate of the sensor 
(

ΔT > 200 μs)

• 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 10.17.
• Check the test points. See Section 10.23.
• Check the sensor circuitry. See Section 10.24.
• Check the sensor tubes for erosion.
• If the problem persists, contact Micro Motion.

Input Overrange

A006

Transmitter Not 
Characterized

Combination of A020 and 
A021

• Check the characterization. Specifically, verify the FCF 

and K1 values. See Section 4.2.

• If the problem persists, contact Micro Motion. 

Not Configured