1 / 13

Diagnostics – Quaternary Pump & Fraction Collector

Diagnostics – Quaternary Pump & Fraction Collector. Analytical 920 LC. Semi-Prep 940 LC. Modules. Autosampler Quaternary Pump/ Prep Pumps Fluorescence Detector Fraction Collector (external) Column Heater/ Manual Injector Scale Up module MIB

gutierrezc
Download Presentation

Diagnostics – Quaternary Pump & Fraction Collector

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Diagnostics – Quaternary Pump & Fraction Collector Analytical 920 LC Semi-Prep 940 LC

  2. Modules • Autosampler • Quaternary Pump/ Prep Pumps • Fluorescence Detector • Fraction Collector (external) • Column Heater/ Manual Injector • Scale Up module • MIB • --------------------------------------------------------------------------------------------------- • UV-Vis Detector • PDA Detector • RI Detector (internal and external) • ELSD (external) • Isocratic Pump • Sample Loading Pump

  3. Quaternary Pump Problems • General Issues • Reproducibility • Carryover • No Peak Observed • Mixing Ratio Accuracy • Pressure Fluctuations • SplitPeaks • Liquid does not Flow • No Power • Pump Motor does not Rotate

  4. Quaternary Pump Problems • Degasser Issues • Bubbles Generated at Outlet • Bubbles Generated when Pump sucks • Liquid does not flow • Vacuum Pump does not work • Vacuum Pump does not stop

  5. Prep Pump Problems • General Issues • Reproducibility • Carryover • No Peak Observed • Mixing Ratio Accuracy • Pressure Fluctuations • SplitPeaks • Liquid does not Flow • No Power • Pump ID’s • (broken Spring)

  6. Quaternary Pump Electronics • Electronics • Motor Error • Leaks • Data & Board Errors • Limit Errors

  7. Quaternary Pump Electronics

  8. Prep Pump Electronics • Electronics • Fuse on Main Board • Pot Adjustments (if applicable) • Circuit Cycling • Limit Errors

  9. IMS Quaternary Pump Actions • Inlet check valve replaced • Outlet check valve replaced • Piston seal replaced • Drain valve seal replaced • Drain valve filter replaced • Solenoid valve replaced • Mixer filter replaced • Solvent filter replaced • Gradient four way joint replaced • Cam Position Adjustment

  10. IMS Quaternary Pump Tests • Flow rate accuracy - Test meter method • Flow rate accuracy test - Time volume method • Flow Compositional accuracy test • Flow Leak test • Flow precision test • Flow pulsation test • Flow compositional Ripple Test • Flow gradient linearity test • Flow compositional precision test

  11. IMS Prep Pump Actions • Pump A pistons seal replaced • Pump A inlet check valve replaced • Pump A outlet check valve replaced • Pump B pistons seal replaced • Pump B inlet check valve replaced • Pump B outlet check valve replaced • Solvent inlet filter replaced • Mixer filter replaced • Zero pump pressure • Reset Pump ID

  12. IMS Prep Pump Tests • Flow Rate Accuracy Test – Flow Meter method • Flow Rate Accuracy Test - Time volume method • Flow Leak Test • Flow Precision Test • Flow Gradient Linearity Test • Flow Compositional Precision Test • Flow Compositional Accuracy Test

  13. Pump Practical • Person 1: • Replacement of the Pump Seal & Drain Valve Seal and Solvent Filter Wash • Person 2: • Replacement & Cleaning the Inlet and Outlet check valves and Pressure Test Mode in IMS, for 940 people, reset pump ID • Person 3: • Remove the pump and Pump Board • Cam Position Adjustment after Board Replacement

More Related