Check or replace sample probe or outer needle
A faulty or broken needle can cause a fill time-out error or a dilution error. If necessary replace the sample probe or outer needle.
Lift the robotic protection hood.
Needle exchange:
- Unscrew sample probe manually.
- Mark each tube for easier reconnecting to the correct nipple.
- Disconnect the tubes from the outer needle.
- Pull the sample probe, complete with outer needle, towards the front edge of the ESR analyzer unit.
The outer needle must be supported to protect it from falling. - Slide the new sample probe into the (new) outer needle.
- Make sure the Sample probe has a (new) O-ring QWLV050003.
- Install (new) sample probe ESRI050909 together with the (new) outer needle ESRI050950.
- Tighten the sample probe.
- Replace the correct tubes on the outer needle.
- Close the robotic protection hood.
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