
YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
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NJEX 7300L ver.10012003
7300L T
7300L T
7300L T
7300L T
7300L T
ABLE
ABLE
ABLE
ABLE
ABLE
OF
OF
OF
OF
OF
C
C
C
C
C
ONTENTS
ONTENTS
ONTENTS
ONTENTS
ONTENTS
Section 12: System Maintenance .................................................................................................71
Preventative Maintenance Schedule .................................................................................................71
Recommended Maintenance Schedule ....................................................................................... 71
Weekly Inspection ......................................................................................................................71
Semi-Annual Inspection..............................................................................................................71
Annual Inspection .......................................................................................................................71
Bi-Annual Inspection ...................................................................................................................71
Recommended Spare Parts List ..................................................................................................71
Overflow Protector Assembly Inspection ..........................................................................................72
Low Pressure Relief Adjustment ....................................................................................................... 73
Conducting a Forward Purge ............................................................................................................ 74
Venting Pressure Gas .......................................................................................................................76
Filling the Verometer.......................................................................................................................... 78
Priming & Starting the NJEX System ................................................................................................80
Section 13: 7300L System Troubleshooting ................................................................................83
How to Use This Section ...................................................................................................................83
For Additional Help ........................................................................................................................83
Step-by-Step Resolution ...............................................................................................................83
Tank Level Alarms ............................................................................................................................. 83
Tank Level Alarm Troubleshooting Steps ...................................................................................... 84
Battery Alarm .....................................................................................................................................84
Battery Alarm Troubleshooting Steps ...........................................................................................84
Signal Alarms ....................................................................................................................................85
Signal Non-Alarm Indicators ..............................................................................................................85
Signal Alarm & Non-Alarm Indicator Troubleshooting Steps ........................................................85
Loss of Flow Alarm Troubleshooting Steps ................................................................................85
Overflow Alarm Troubleshooting Steps....................................................................................... 85
Low Flow Non-Alarm Indicator Troubleshooting Steps ............................................................... 86
Overflow Non-Alarm Indicator Troubleshooting Steps ................................................................ 86
Verometer Alarms.............................................................................................................................. 86
Verometer Non-Alarm Indicators ...................................................................................................... 87
Verometer Troubleshooting Steps ................................................................................................87
Verometer Cable Alarm Troubleshooting Steps ..........................................................................87
Verometer No-Fill Alarm Troubleshooting Steps .........................................................................87
Verometer Slow-Fill Alarm Troubleshooting Steps ..................................................................... 88
Verometer Leakage Alarm Troubleshooting Steps ......................................................................88
Verometer Fill Valve Failure Alarm Troubleshooting Steps ..........................................................89
Verometer Odorant Inlet Cable Alarm Troubleshooting Steps .....................................................89
Verometer Odorant Inlet Low Alarm Troubleshooting Steps .......................................................90
Verometer Odorant Inlet Hi Alarm Troubleshooting Steps ...........................................................90
Verometer Expansion Tank Cable Alarm Troubleshooting Steps ................................................ 90
Verometer Expansion Tank Low Alarm Troubleshooting Steps ...................................................90
Verometer Expansion Tank High Alarm Troubleshooting Steps ..................................................91
Verometer Overfill Non-Alarm Indicator Troubleshooting Steps ..................................................91
Verometer Fill Rate Non-Alarm Indicator Troubleshooting Steps ................................................ 91