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4.3
Troubleshooting
4.3.1 Fault Codes
When trouble occurs during normal operation of the Model Mini-ICS, the user has several tools
available to aid in isolating the cause(s) of given symptoms. As a starting point, the user may use
the front panel to enter into "View Active Faults" mode (section 3.2.5). The user may also view
active faults and other useful information via the Service Port (section 4.1.2). In addition, there are
four system Hot-Keys available to perform special functions, and to gather important information
quickly and easily (Appendix D).
Descriptions of faults are given below, with indication of common causes. Refer to the appropriate
sections of this manual for more details as needed.
troubleshooting casualties related to Neutronics Inc. Sampling systems and Sample Conditioning
Packages.
Fault Code 0 – Constant Memory Error
4.3.1.1
The Constant Memory Error fault indicates that information in the Model Mini-ICS non-volatile
operating system has been corrupted, and cannot be recovered. The 7-segment LED display will
indicate "Er.0". The Model Mini-ICS operating system storage area is double redundant, however;
if a catastrophic failure causes all three system storage areas to become corrupt, the unit will not
operate, and must be returned to the factory for repair.
Fault Code 1 – Low Flow
4.3.1.2
The Low Flow fault indicates that sample or calibration gas flow has dropped below the mechanical
set point of the Flow Switch in you Neutronics Inc. Process Sampling system, or Sample
Conditioning Package. In this flow condition, the Oxygen reading may not be representative of the
process Oxygen level. Other possible causes may be an open condition in the Flow Switch
interface, a fouled Flow Switch, or a faulty Intrinsic Safety Barrier (Hazardous applications only).
Fault Code 2 – Sensor disconnected
4.3.1.3
The Sensor disconnected fault indicates that there is not a continuous electrical circuit connecting
the Model Mini-ICS and the Oxygen Sensor. This condition is different from a "Sensor Operating
signal low" fault; it indicates an open condition in the connecting hardware. Possible causes may
be an open in the Sensor interface wiring, or a faulty Intrinsic Safety Barrier (Hazardous
applications only).
Fault Code 4 – Low Sensor Limit higher than Low ICS Limit
4.3.1.4
The Low Sensor Limit Higher than Low ICS Limit fault indicates a conflict in the analyzer setup
between the Low ICS Limit setting (sections 3.2.4 and 4.1.2.9.5, and Appendix C, Factory Setup)
and the Low Sensor Fault setting (section 4.1.2.9.6 and Appendix C, Factory Setup). The Low
Sensor Fault setting cannot be set to a higher Oxygen concentration than the Low ICS Limit
setting.
Fault Code 5 – High ICS Limit lower than Low ICS Limit
4.3.1.5
The High ICS Limit lower than Low ICS Limit fault indicates a conflict in the analyzer setup
between the High ICS Limit setting (section 3.2.3, and 4.1.2.9.4, and Appendix C, Factory Setup),
and the Low ICS Limit setting (sections 3.2.4, and 4.1.2.9.5, and Appendix C, Factory Setup). The
High ICS Limit setting cannot be set to a higher Oxygen concentration than the Low ICS Limit
setting.
Manual Part Number:
5-06-4900-53-0
Revision Level: C
ECO 044952
Other manuals may be helpful in
Revision Date:
May 08, 2018
Troubleshooting
Page
4-20
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Table of Contents
Troubleshooting
