Emerson Rosemount 8732EM, Reference Manual

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Use this method to reset the maximum electrode coating value.
9.8 4-20 mA loop verification
The 4-20 mA loop verification diagnostic provides a means of verifying the analog output
loop is functioning properly. This is a manually initiated diagnostic test. This diagnostic
checks the integrity of the analog loop and provides a health status of the circuit. If the
verification does not pass, this will be highlighted in the results given at the end of the
check.
The 4-20 mA loop verification diagnostic is useful for testing the analog output when
errors are suspected. The diagnostic tests the analog loop at five different mA output
levels:
• 4 mA
• 12 mA
• 20 mA
• Low alarm level
• High alarm level
9.8.1 Initiating 4-20 mA loop verification
LOI menu path Diagnostics > Advanced Diag > 4-20mA Verify > 4-20mA Verify
The 4-20 mA loop verification diagnostic can be initiated as required by the application. If
the advanced diagnostics suite 2 (DA2 Option) was ordered, then the 4-20 mA loop
verification diagnostic will be available. If DA2 was not ordered or licensed, this diagnostic
is not available.
9.8.2 4-20 mA loop verification parameters
The 4-20 mA loop verification diagnostic has five read-only parameters plus an overall test
result. It does not have any configurable parameters.
4-20 mA loop verification test result
LOI menu path Diagnostics > Advanced Diag > 4-20mA Verify > View Results
Shows the results of the 4-20 mA loop verification test as either passed or failed.
4 mA measurement
LOI menu path N/A
Advanced Diagnostics Configuration
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