Maintenance works must only be undertaken after the temperature of each part has been lowered to less than 50 deg.C.
Place any detached items on a clean sheet or tray. Do not lose or contaminate these items.
Undertake the works using the appropriate tools. Any dirt on the tools being used must be wiped off in advance using gauze etc. dipped in acetone.
Do not remove the photomultiplier unit while the system is operating or the FPD is on as this may damage the photomultiplier.
Tools Required10x12 wrench (standard accessory), Phillips screwdriver, Flat screwdriver (standard FPD accessory)
Procedure|
1 |
Shutdown the system and stop the gas supply for detectors. |
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2 |
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Pull the lever on the left hand side of the door to open the column oven. |
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3 |
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After uninstalling the column, loosen two screws and remove the heat insulating cup on the FPD. |
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4 |
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Loosen the capillary adapter with the wrench and pull it down to remove. |
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5 |
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Use the flat screwdriver to slowly lower the nozzle and then remove it. |
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6 |
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Slowly insert the replacement nozzle into the FPD cell while holding the screwdriver at the setscrew on the replacement nozzle. Because the quartz nozzle for the packed column is easily broken, you must exercise special caution not to drop it. After the PDF nozzle has been replaced, the nozzle level may change. It is therefore recommended that the shield ring level be adjusted again. (Go to the procedure for adjusting the shield ring.) |
Maintenance Top ; GC-2014 Main ; GC-2014 Detector ; GC-2014 Sample Injection Port ; GC-2014 Column Oven
