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Topic: PE 1300 AAS Noisy chopper  (Read 3773 times)

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mickey

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PE 1300 AAS Noisy chopper
« on: August 25, 2005, 03:05:32 AM »
Having problem with a noisy chopper.
AAS Instrument: Perkin Elmer AAS 1300.
Uses: Cold Vapour and Hydride Generation.
Lamp: EDL (electrodeless discharge lamps)
Effect of noisy chopper: minute vibration of EDL causing very noisy baseline drifts.
Action taken: checked posibility of chopper touching casing but that is not the case.

Any help, suggestions/advice would be appreciated.

mickey

Offline kevins

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Re:PE 1300 AAS Noisy chopper
« Reply #1 on: August 26, 2005, 11:39:15 AM »
Please check the chopper bearing, it may be lost of lubricant.

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