Configuration and Use Manual 147
Troubleshooting
Measurement Performance TroubleshootingCustody TransferCompensation Measurement Performance TroubleshootingCustody TransferCompensation Measurement Performance TroubleshootingCustody TransferCompensation Measurement Performance TroubleshootingCustody TransferCompensation
ProLink II
ProLink II v2.0 or later is required. The original version of ProLink is not compatible with Series
1000/2000 transmitters. To access most new functionality (e.g., meter verification), ProLink II v2.5 is
required.
If you are using the enhanced core processor and you connect directly to the core processor’s RS-485
terminals (see Figure B-4 or Figure B-14) instead of to the transmitter, ProLink II v2.4 or later is
required. This connection type is sometimes used for troubleshooting.
To check the version of ProLink II:
1. Start ProLink II.
2. Open the
Help menu.
3. Click on
About ProLink.
AMS
Your AMS software must have Device Revisions 1 to 3. Contact Emerson Process Management.
12.16 Checking the output wiring and receiving device
If you receive an inaccurate frequency or mA reading, there may be a problem with the output wiring
or the receiving device.
• Check the output level at the transmitter.
• Check the wiring between the transmitter and the receiving device.
• Try a different receiving device.
12.17 Checking slug flow
Slugs – gas in a liquid process or liquid in a gas process – occasionally appear in some applications.
The presence of slugs can significantly affect the process density reading. Slug flow limits and
duration can help the transmitter suppress extreme changes in reading.
Note: Default slug flow limits are 0.0 and 5.0 g/cm
3
. Raising the low slug flow limit or lowering the
high slug flow limit will increase the possibility of slug flow conditions.
If slug limits have been configured, and slug flow occurs:
• A slug flow alarm is generated.
• All outputs that are configured to represent flow rate hold their last “pre-slug flow” value for
the configured slug flow duration.
If the slug flow condition clears before the slug-flow duration expires:
• Outputs that represent flow rate revert to reporting actual flow.
• The slug flow alarm is deactivated, but remains in the active alarm log until it is
acknowledged.
If the slug flow condition does not clear before the slug-flow duration expires, outputs that represent
flow rate report a flow rate of zero.
If slug time is configured for 0.0 seconds, outputs that represent flow rate will report zero flow as
soon as slug flow is detected.
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