Troubleshooting guide

Lab Exercise: Overview and Diagnostics

Diagnosis View

7) Click on the Start button located next to the Leak Test option. The Leak

Test is displayed. Click on the Explain button to find out more about the

test. At this point in your troubleshooting process, you could Start the Leak

Test, analyze the results, and then perform the required maintenance.

8) Close the Leak Test and Leak Test Information. You will get a chance to

run an instrument test later.

9) Now, select Analytic from the Observed Symptoms. Pull down the drop

box to find a list of common chromatographic problems. Select one of the

problems.

10) Go to the possible causes drop box and pull down a list of causes. Select

one of the causes and notice that instrument information is again provided

along with helpful tests to confirm the probable cause.

Instrument Tests

The Diagnosis view contains a complete selection of diagnostic tests such as the

Leak Test you encountered previously. The tests are a convenient resource to

track instrument performance. For instance, users often want to test the lamp

intensity. A test is available for that purpose.

1) Make certain that you are in the Diagnosis view. Select the Diagnosis menu,

then Tests….

2) The Test Selection panel is displayed. Select the detector in the drop-down

box. A list of tests available for the detector is shown.

3) Click on DAD Intensity Test. A description of the test is shown at the right

and the Start button is found below for beginning the test.

4) Explore the other available tests, but do not run any just now. In other lab

exercises you will perform some of the most important tests.

5) Close the Test Selection Panel.

Maintenance and Repair CD-ROM

When a diagnostic test procedure, Early Maintenance Feedback, or your own

experience indicates that maintenance should be performed, two resources can

help. First, each of the 1200 instrument modules has a detailed, systematic

reference manual. In addition, the Maintenance and Repair CD-ROM (part

number 01100-60007) can lead you through each maintenance procedure in a

multi-media format. The CD-ROM is easily accessed through the Diagnosis view

or can be viewed independently of the ChemStation software simply by accessing

your CD-ROM drive. In this part of the laboratory, you will learn how to use the