Agilent Technologies 7890A Troubleshooting Manual page 13

Gas chromatograph

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Information to Obtain Before Calling Agilent for Service

Troubleshooting

Gather the following information before contacting Agilent

for service:

• Symptoms

• Problem description

• Hardware installed and parameters/configuration when

the error occurred (sample, supply gas type, gas flow

rates, detectors/inlets installed, and so forth)

• Any messages that appear on the GC display

• Results of any troubleshooting tests you have run

• Instrument details. Obtain the following information:

• GC serial number, which can be found on a sticker

located beneath the keypad on the bottom right corner

of the GC.

• GC firmware revision (press [Status], then [Clear])

• GC power configuration (located on a label on the back

panel of the GC to the left of the GC power cable)

• Oven configuration (fast- or slow- heating)

• Press the [Status] key to display previous Error, Not Ready,

and Shutdown messages.

To obtain service/support contact numbers, see the Agilent

Web site at www.agilent.com/chem.

Concepts and General Tasks