Agilent Technologies 5975T LTM GC/MSD, Troubleshooting And Maintenance Manual

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6 Troubleshooting and Maintenance Guide
Temperature Never Becomes Ready 76
Cannot Set a Flow or Pressure 77
A Gas Does Not Reach Setpoint Pressure or Flow 78
A Gas Exceeds Pressure Setpoint or Flow 79
The Inlet Pressure or Flow Fluctuates 80
Cannot Maintain a Pressure as Low as the Setpoint on a Split Inlet 81
The Measured Column Flow Does Not Equal the Displayed Flow 82
5 ALS Symptoms
Plunger Errors 84
Syringe Needle Bends During Injection into Inlet 85
6 Shutdown Symptoms
Column Shutdowns 88
Hydrogen Shutdowns 89
Thermal Shutdowns 90
7 Instrument Power On and Communication Symptoms
Instrument does not turn on 92
Foreline pump is not operating 93
MSD turns on but then the foreline pump shuts off 94
Local control panel says “No server found” 95
Instrument Turns On, Then Stops During Startup (During Self-Test) 96
PC Cannot Communicate with Instrument 97
8 Checking for Leaks
Leak Check Tips 100
To Check for External Leaks 101
To Check for Instrument Leaks 103
Leaks in Capillary Flow Fittings 104
9 Troubleshooting Tasks
To Measure a Split Vent or Septum Purge Flow 106
10 General Maintenance
Before Starting 110