Emerson Micro-Motion 2400S, Configuration And Use Manual, Page: 141 / 198

Configuration and Use Manual 133
Troubleshooting
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If you are using HART protocol and you can read data from the transmitter but cannot write data (e.g.,
you cannot start, stop or reset totalizers or change transmitter configuration), check the HART
security switch. See Section 2.6. You may see response code #7: In Write Protect Mode.
If you are trying to communicate via the infrared port, ensure that the port is not write-protected. See
Section 8.11.2.
11.6 Zero or calibration failure
If a zero or calibration procedure fails, the transmitter will send a status alarm indicating the cause of
failure. See Section 11.12 for specific remedies for status alarms indicating calibration failure.
11.7 Fault conditions
If the analog or digital outputs indicate a fault condition (by transmitting a fault indicator), determine
the exact nature of the fault by checking the status alarms with a Communicator or ProLink II, or the
display if available on your transmitter. Once you have identified the status alarm(s) associated with
the fault condition, refer to Section 11.12.
Some fault conditions can be corrected by cycling power to the transmitter. A power cycle can clear
the following:
• Loop test
• Zero failure
• Stopped internal totalizer
11.8 HART output problems
HART output problems include inconsistent or unexpected behavior that does not trigger status
alarms. For example, the Communicator might show incorrect units of measure or respond sluggishly.
If you experience HART output problems, verify that the transmitter configuration is correct.
If you discover that the configuration is incorrect, change the necessary transmitter settings. See
Chapter 6 and Chapter 8 for the procedures to change the appropriate transmitter settings.
If you confirm that all the settings are correct, but the unexpected outputs continue, the transmitter or
sensor could require service. See Section 11.3.
11.9 I/O problems
If you are experiencing problems with the mA output, frequency output, discrete output, or discrete
input, use Table 11-2 to identify an appropriate remedy. Simulation mode may also be helpful (see
Section 11.10).