Reference Manual
00809-0600-4026, Rev BA
December 2011
5-19
Rosemount Process Radar
Required tools: Field Communicator and mA meter.
1. Bypass the logic solver or take other appropriate actions to avoid false
trip.
2. Disable write protection if the function is enabled.
3. Using Loop Test, enter the mA value representing a high alarm current
output and verify that the analog current reaches that value using the mA
meter.
This step tests for compliance voltage problems, such as low loop power
supply voltage or increased wiring resistance.
4. Using Loop Test, enter the mA value representing a low alarm current
output and verify that the analog current reaches that value using the
reference meter.
This step tests for possible quiescent current related failures.
5. Perform a two-point calibration check of the transmitter by adjusting the
product level in two points in the measuring range
(1)
. Verify that the
current output corresponds to the level input values using a known
reference measurement.
This step verifies that the analog output is correct in the operating range
and that the Primary Variable is properly configured.
6. Enable write protection.
7. Restore the loop to full operation.
8. Remove the bypass from the safety logic solver or otherwise restore
normal operation.
9. Document the test result for future reference.
For troubleshooting the transmitter, see Section 7: Service and
Troubleshooting in the Rosemount 5400 Series Reference Manual
(Document No. 00809-0100-4026).
Inspection Visual Inspection
It is recommended to inspect the antenna for possible build up or clogging.
Special Tools
Not required.
Product Repair
The Rosemount 5400 Series is repairable by major component replacement.
All failures detected by the transmitter diagnostics or by the proof test must be
reported. Feedback can be submitted electronically at
www.emersonprocess.com/rosemount/safety (Contact Us).
Additional information is available in the Rosemount 5400 Series Reference
Manual (Document No. 00809-0100-4026).
References Specifications
The Rosemount 5400 Series must be operated in accordance with the
functional and performance specifications provided in Appendix A: Reference
Data in the Rosemount 5400 Series Reference Manual (Document No.
00809-0100-4026).
(1) For best performance, use the 4 - 20 mA range points as calibration points.
(78 paginas)
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