World Class 3000
Instruction Manual
SECTION 6
TROUBLESHOOTING
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| sion circuits are employed on all field termi- |
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| nations and main inputs. When fault finding, |
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| The system troubleshooting describes how to |
| the electrical noise being generated in the |
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| identify and isolate faults which may develop in |
| immediate circuitry of a faulty system should |
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| the Oxygen Analyzer System. Refer to Probe, |
| be evaluated. All cable shields must be |
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| IFT, HPS, MPS, and HART Communicator |
| connected to earth. |
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| appendices. | c. | Loose Integrated Circuits |
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| The IFT uses a microprocessor and sup- |
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| Install all protective equipment covers |
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| porting integrated circuits. Should the elec- |
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| and safety ground leads after trouble- |
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| tronics unit receive rough handling during |
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| shooting. Failure to replace covers |
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| installation in a location where it is sub- |
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| and ground leads could result in seri- |
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| jected to severe vibration, an Integrated |
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| ous injury or death. |
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| Circuit (IC) could work loose. The fault find- |
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| ing guides in paragraph |
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| in Appendix E, show the resulting variety of |
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| failure modes. It is recommended that all |
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| a. | Grounding |
| IC's be confirmed to be fully seated before |
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| troubleshooting on the system begins. |
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| It is essential that adequate grounding pre- | d. | Electrostatic Discharge |
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| cautions are taken when the system is be- |
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| ing installed. A very thorough check must |
| Electrostatic discharge can damage the IC's | 6 | ||||||
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| be made at both the probe and electronics |
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| used in the electronics unit. It is essential |
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| to ensure that the grounding quality has not |
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| that the user ensure he/she is at ground |
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| degraded during fault finding. The system |
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| potential before removing or handling the |
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| provides facilities for 100% effective |
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| processor board or the IC's used on it. |
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| grounding and the total elimination of |
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| ground loops. |
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| SYSTEM TROUBLESHOOTING |
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| b. | Electrical Noise |
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The IFT has been designed to operate in the type of environment normally found in a boiler room or control room. Noise suppres-
The status line of the GUI equipped IFT will dis- play one of ten conditions. The system status displays will be displayed one at a time in prior- ity sequence, as indicated in Table
Rosemount Analytical Inc. A Division of Emerson Process Management | Troubleshooting |
