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ICP-OES Articles Replacing the AVS 6/7 Rotor
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      • AVS 6/7 Tubing Connections and Part Numbers
      • AVS 6/7 Maintenance Checklist
      • Recommended Routine ICP-OES and AVS 6/7 Maintenance Schedule
      • Replacing the AVS 6/7 Rotor
      • Customizing Agilent ICP-OES Maintenance for Sample Matrix and Sample Numbers
      • Replacing and Adjusting the 5000 Series ICP-OES Peristaltic Pump Tubing
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Replacing the AVS 6/7 Rotor

Created by Paul Gunston Paul Gunston over 1 year ago | Last modified by Carlos Vargas Carlos Vargas over 1 year ago

This Information Applies To: Agilent 5000 Series ICP-OES Systems, AVS 6/7


Issue 

Over time the AVS 6/7 rotor can become worn or damaged by chemicals. Agilent recommends inspecting and/or replacing the rotor every 5000 AVS switches or when analytical results or precision fall outside expected limits.


Steps to Follow:

 Tip 
Tip: Refer to the Help section of the Agilent ICP Expert Instrument Software for further detailed instructions.

 Warning  Warning:
Always wear appropriate PPE when handling AVS 6/7 components and tubing to avoid contact with potentially dangerous chemicals. 
  1. It is not necessary to disconnect the tubing from the AVS valve to replace the rotor however, the tubing can be removed and rinsed when there is suspected system contamination. Figure 1 shows the AVS with the tubing removed. 


    Figure 1. 1 AVS7 with the tubing removed

  2. Disassemble the AVS 6/7. Use the 7/16 inch hex key provided with the valve to remove the AVS body. 

  3. Inspect the contact surface of the rotor for signs of wear and replace if there are visible score marks or damage. AVS 6/7 rotor part number G8494-60002, AVS 6 stator and rotor part number G8494-60003. AVS 7 stator and rotor part number G8495-60003

     

  4. Inspect the reverse face of the stator for signs of wear and replace if there are visible score marks or damage.

     

  5. Re-assemble the AVS7 valve.

     Tip  Tip: When reassembling the AVS, it is critical that each screw is tightened evenly in turn to ensure consistent pressure. If the pressure on the three screws is not even or the screws are too tight / too loose, air leaks may occur.

  6. When finished reassembling the AVS, it is recommended to run the Advanced Valve System Test as detailed in the Help section of the Agilent ICP Expert Instrument Software to check performance of the AVS. 

 Tip 
Learn how to effectively maintain your Agilent AVS:
Agilent 5000 Series ICP-OES with ICP Expert e-learning path available from Agilent education
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