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717 Autosampler error "Seal width too narrow" when running the adjust seals calibration - WKB6918

Article number: 6918

SYMPTOMS

  • 717 Adjust Seals fails. CAL error: "Seal width Too narrow" 
  • Flow is at 1.1 mL/min in degassed methanol through a column; pressure stable at 500 psi
  • Test cycles through the sequence as expected, moving the needle through the seals, monitoring changes in pressure
  • Error triggered several minutes into the calibration sequence
  • Compression test fails due to lack of seal calibration

Other observations:

  • Auto zero transducer, pressure stable
  • New seal pack, new injector assembly, new sample loop
  • Injector top/bottom sensor adjusted to 5/16-inch spacing
  • Autosampler purged thoroughly; no air bubbles observed

ENVIRONMENT

  • 717+ Autosampler

CAUSE

High-pressure motor valve 1 is leaking. A leak within the fluidics pack prevents the adjust seals calibration from completing.

FIX or WORKAROUND

  1. Rebuild the high-pressure motor valve 1.
    • Part number WAT045424 for the "VLV REBUILD KIT"

ADDITIONAL INFORMATION

 

id6918, 717, 717HC, 717PLUS, 717UP

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