Agilent-technologies Quaternary Pump 1100 Series Manuel d'utilisateur télécharger pdf (Page 86)

Troubleshooting and Test Functions

Evaluating the Results

The sum of all leaks between the pump and the blank nut will be indicated by

a pressure drop of >2 bar/minute at the plateau. Note that small leaks may

cause the test to fail, but solvent may not be seen leaking from a module.

NOTE Please notice the difference between an error in the test and a failure of the

test! An error means that during the operation of the test there was an

abnormal termination. If a test failed, this means that the results of the test

where not within the specified limits.

If the pressure test fails:

• Ensure all fittings between the pump and the blank nut are tight. Repeat

the pressure test.

NOTE Often it is only a damaged blank nut itself (poorly shaped from overtightening)

that causes a failure of the test. Before investigating on any other possible

sources of failure make sure that the blank nut you are using is in good

condition and properly tightened!

• If the test fails again, insert the blank nut at the outlet of the previous

module in the stack (eg. autosampler, port 6 of the injection valve), and

repeat the pressure test. Exclude each module one by one to determine

which module is leaking.

• If the pump is determined to be the source of the leak, run the leak test.

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Agilent-technologies Quaternary Pump 1100 Series Manuel d'utilisateur Page 86