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Reference Manual
00809-0100-4444, Rev AC
Section 6: Advanced Diagnostics Configuration
January 2015
Advanced Diagnostics Configuration
Maximum electrode coating (EC)
The maximum electrode coating value reads the maximum value of the coated electrode detection
diagnostic since the last maximum value reset.
Clear maximum electrode value
Use this method to reset the maximum electrode coating value.
6.8 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
6.8.1 Initiating 4-20 mA loop verification
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.
6.8.2 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.
LOI menu path
Diagnostics, Advanced Diag, Elec Coat, EC Max Value
Traditional fast keys
1,2,3,1,4
Device dashboard
2,2,5,6,4
LOI menu path Diagnostics, Advanced Diag, Elec Coat, Reset Max Val
Traditional fast keys 1,2,3,1,5
Device dashboard 2,2,5,6,5
LOI menu path
Diagnostics, Advanced Diag, 4-20mA Verify, 4-20mA Verify
Traditional fast keys
1,2,3,3,1
Device dashboard
3,4,3,1