
YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page4 NJEX 7300L ver.10012003
7300L T7300L T
7300L T7300L T
7300L TABLEABLE
ABLEABLE
ABLE
OFOF
OFOF
OF CC
CC
C
ONTENTSONTENTS
ONTENTSONTENTS
ONTENTS
Section 12: System Maintenance .................................................................................................71
PreventativeMaintenance 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 ProtectorAssembly Inspection ..........................................................................................72
Low Pressure ReliefAdjustment.......................................................................................................73
Conducting a Forward Purge ............................................................................................................74
Venting Pressure Gas .......................................................................................................................76
Fillingthe Verometer..........................................................................................................................78
Priming & Starting the NJEX System ................................................................................................80
Section 13: 7300L System Troubleshooting................................................................................83
How to Use This Section...................................................................................................................83
ForAdditional Help ........................................................................................................................83
Step-by-Step Resolution...............................................................................................................83
Tank LevelAlarms .............................................................................................................................83
Tank Level AlarmTroubleshooting Steps ......................................................................................84
BatteryAlarm.....................................................................................................................................84
BatteryAlarm Troubleshooting Steps ...........................................................................................84
SignalAlarms ....................................................................................................................................85
SignalNon-Alarm Indicators..............................................................................................................85
SignalAlarm & Non-Alarm Indicator Troubleshooting Steps ........................................................85
Loss of Flow AlarmTroubleshooting Steps ................................................................................85
OverflowAlarmTroubleshooting Steps.......................................................................................85
Low Flow Non-Alarm Indicator Troubleshooting Steps ...............................................................86
Overflow Non-Alarm Indicator Troubleshooting Steps ................................................................86
VerometerAlarms..............................................................................................................................86
Verometer Non-Alarm Indicators ......................................................................................................87
Verometer Troubleshooting Steps ................................................................................................87
Verometer CableAlarm Troubleshooting Steps ..........................................................................87
Verometer No-Fill AlarmTroubleshooting Steps .........................................................................87
Verometer Slow-Fill Alarm Troubleshooting Steps.....................................................................88
Verometer LeakageAlarm Troubleshooting Steps......................................................................88
Verometer Fill Valve FailureAlarm Troubleshooting Steps ..........................................................89
Verometer Odorant Inlet Cable AlarmTroubleshooting Steps.....................................................89
Verometer Odorant Inlet LowAlarm Troubleshooting Steps .......................................................90
Verometer Odorant Inlet HiAlarmTroubleshooting Steps ...........................................................90
Verometer Expansion Tank Cable AlarmTroubleshooting Steps ................................................90
Verometer Expansion Tank LowAlarmTroubleshooting Steps...................................................90
Verometer Expansion Tank HighAlarm Troubleshooting Steps ..................................................91
Verometer Overfill Non-Alarm IndicatorTroubleshooting Steps ..................................................91
Verometer Fill Rate Non-Alarm IndicatorTroubleshooting Steps ................................................91