Model 2000 Flow Computer Instruction Manual
APPENDIX 1 ALARM, WARNING & FAULT CODES
Model 2000 issue 21 Page No
72
n-C7.N min/max Heptane below min or above max alarm levels.
n-C8.N min/max Octane below min or above max alarm levels.
n-C9.N min/max Nonane below min or above max alarm levels.
n-C10.N min/max Decane below min or above max alarm levels.
He.N min/max Helium below min or above max alarm levels.
Ar.N min/max Argon below min or above max alarm levels.
Chrm comp Gas Chromatograph component alarm.
Chrm comms Gas Chromatograph communication error.
Chrm str N Gas Chromatograph Stream specific Alarm.
Chrm alarm Gas Chromatograph status error.
Gas density measurement alarms only.
densN-f lo/hi Density frequency input below 500Hz or above 5000Hz.
rdN-f low/high Rel. dens. frequency input below 500Hz or above 5000Hz.
For Station Controllers only.
SC read N A Station Controller communication Read from a Flow computer has failed.
SC write N A Station Controller communication Write to a Flow computer has failed.
Totals Err Station Controller is unable to calculate Station totals.
Vb Compare Station Controller comparison between Vb stream flows alarm.
Vn Compare Station Controller comparison between Vn stream flows alarm.
APPENDIX 1d Temperature Alarm
tempN alrm Temperature below t-alarm and qb above Lo.q for more than a preset time interval.
APPENDIX 1e Fault Codes
In all the following items X will indicate the user board slot number 1, 2, 3, 4 or 5.
Fault ipX Faulty or missing Input board in user position X.
Fault opX Faulty or missing Output board in user position X.
Fault comX Faulty or missing Communication board in user position X.
Fault netX Faulty or missing Network board in user position X.
Fault brdX Wrong board type in user position X.
Fault data No or incomplete data for operation.
Fault rtc Real Time Clock fault or failure.
APPENDIX 1f Warning Codes
In all the following items, X will indicate the user board slot number 1, 2, 3, 4 or 5. And Y will indicate 1 for the
upper communication port and 2 for the lower.
Warn ipX Missing Input board in user position X.
Warn opX Missing Output board in user position X.
Warn comX Missing Comms. board in user position X.
Warn brdX Wrong board type in user position X.
Err Maint. Unit is currently in the maintenance mode.
proving Unit is currently in the proving mode.
CalDefault Unit is currently using Default Calibration data.
Div zero A divide by zero has occurred, followed by details of the last occurrence.
op1 brdX Pulse Output 1 on Output Board in position X is Overrange.
op2 brdX Pulse Output 2 on Output Board in position X is Overrange.
op3 brdX Pulse Output 3 on Output Board in position X is Overrange.
op4 brdX Pulse Output 4 on Output Board in position X is Overrange.
op5 brdX Pulse Output 5 on Output Board in position X is Overrange.
op6 brdX Pulse Output 6 on Output Board in position X is Overrange.
op7 brdX Pulse Output 7 on Output Board in position X is Overrange.
op8 brdX Pulse Output 8 on Output Board in position X is Overrange.
op9 brdX Pulse Output 9 on Output Board in position X is Overrange.
op10 brdX Pulse Output 10 on Output Board in position X is Overrange.
op11 brdX Pulse Output 11 on Output Board in position X is Overrange.
op12 brdX Pulse Output 12 on Output Board in position X is Overrange.
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