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Instruction Bulletin
Appendix E Rev. 4.6
May 2005
Rosemount Analytical Inc. A Division of Emerson Process Management Appendices E-7
World Class 3000
Table E-2. GUI Equipped IFT Fault Finding
SYMPTOM COMPONENT FAILURE
1. Display is blank. Possible failure within IFT. Check LED on microprocessor board.
2. CalEr is displayed. Repeat calibration sequence. If error persists, troubleshoot major components.
3. HtrEr is displayed. Ensure jumpers are set correctly on IFT. If system is equipped with HPS refer
to HPS 3000 Troubleshooting in Appendix B for additional troubleshooting
procedures.
4. NoGas is displayed. Possible failure within the MPS. Refer to MPS 3000 Troubleshooting in Ap-
pendix D for additional troubleshooting procedures.
*5. HiO
2
is displayed. Possible failure within the probe. Ensure the high alarm level has been en-
tered correctly. Refer to Probe Troubleshooting in Appendix A for additional
troubleshooting procedures.
*6. LowO
2
is displayed. Possible failure within the probe. Ensure the low alarm parameter has been
entered correctly. Refer to Probe Troubleshooting in Appendix A for additional
troubleshooting procedures.
7. ResHi is displayed. Cell resistance has exceeded upper limit. Ensure resistance value has been
entered correctly. Refer to Probe Troubleshooting in Appendix A for additional
troubleshooting procedures.
8. Off The probe has been turned OFF because the IFT cannot control the heater
temperature.
9. PrbEr The probe is disconnected, cold, or leads are reversed.
*HiO
2
and LowO
2
can occur in the system without system failure.