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Spare parts
Waters recommends you replace only the parts mentioned in this document.
Safety and handling
When troubleshooting the GCT Premier, keep the following safety
considerations in mind.
System troubleshooting
There are a few basic steps for performing system troubleshooting:
1.
Examine the system, first considering likely causes of the problem.
Unresponsive instruments might mean that power or signal cables are
disconnected or improperly connected. Similarly, a fluid or vacuum leak
might indicate defective plumbing connections.
2.
Compare current system operation with the way the system operated
before the problem arose. To identify normal operating conditions,
maintain a daily log noting overall system performance. Specifically,
measure the performance of individual instruments using known
samples, preferably the ones used for instrument acceptance.
3.
Tracking system parameters and performance during normal operation
is a necessary precondition of effective troubleshooting. You must know,
for example, when system-tuning parameter values approximate those
specified at the time a test sample was previously run or that the lens
settings needed to achieve optimum sensitivity are higher than those
specified before. A need to specify extreme values to attain good results
implies that some part of the system requires attention.
11-2
Troubleshooting
To prevent injury, always observe good
Warning:
laboratory practices when handling solvents, changing
tubing, or operating the GCT Premier. Know the physical
and chemical properties of the solvents used (see the
Material Safety Data Sheets for the solvents in use).
Warning:
To avoid electric shock, do not remove the
instrument's panels. There are no user-serviceable items
inside the instrument.
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Table of Contents
Troubleshooting
