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ProStar 335 Detector

This overview provides an introduction to the ProStar 335 Detector, including its dual array option, Poly.Verify software, flow cell, communications, and production tests.

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ProStar 335 Detector

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  1. ProStar 335 Detector Wednesday, 1 January 2020 Petro van Poppel – Field Support Specialist

  2. Overview • Introduction to PS 335 Detector • Dual Array option • Poly Verify Software • Flow cell • Communications • Poly Verify • Production Tests with 0x0 flow cell • Wavescan • (Settings Tab) • (Input/Output Tab) • (EEPROM) • (COMMS Tab) • (Calibration Tab) • PS 335 Shipping Test • Problems

  3. ProStar 335 Mechanical Optical layout

  4. ProStar 335 Ray Trace Layout

  5. 335 Optics

  6. 335 Ray Trace

  7. 335 Single and Dual Array • Single Array • 1024 photodiode sample array • 2 photodiode references (250nm and 500 nm) • No extended range spectra • Uses only 9x0 and 4x0 flow cells • Microbore to Analytical applications • Dual Array • 1024 photodiode sample and reference array • Extended range spectra (up to 70-100 AU) • Used for analytical to prep apps

  8. Flow Cell Ray Beam General design of the 9x1 flow cell General design of the 9x0 flow cell

  9. Flow Cell Specs

  10. Communications • TCP/IP communications for Detector: • Static or Dynamic • Networked or standalone • Firewall • Access on Network, OS or PC

  11. PS 335 PolyVerify Software

  12. PS 335 PolyDiagnostics Ctrl-Shift-F10 to enable Diagnostics side Ctrl-Shift-F9 to hide Diagnostics side

  13. 335 PolyVerify Test Certificate Test Certificate provided by the factory for each 335 detector

  14. PS 335 PolyVerify Tests

  15. PS 335 Noise Test

  16. PS 335 Wavelength Accuracy test Run with a 4 nm slit

  17. PS 335 SBW Accuracy Test Wavelength Range of 190 to 950 nm

  18. PS 335 Detector Linearity Test pump head pressure of at least 100 atm using a back pressure restrictor of 40psi .

  19. PS 335 Wavescan

  20. PS 335 Wavescan Results

  21. PS 335 Contributions from each Lamp

  22. PS 335 PolyDiagnostics Mode

  23. PS 335 Input/Output Mode

  24. C A B PS 335 Main PWB Power Supply LED’s A: + 24 V power Supply B: + 9V and – 9V Power Supply C: + 5 V Power Supply Front of the Unit

  25. PS 335 Identifying the Array Type Knowing the Array type is necessary when running the Input/Output test diagnostics

  26. PS 335 Dual Array P8 disconnect P8 connection

  27. PS 335 PolyDiagnostics EEPROM

  28. PS 335 PolyDiagnostics COMMS

  29. PS 335 PolyDiagnostics Calibration Tab

  30. Caffeine Shipping Test • PS 335 Caffeine Shipping Test: • Test made up of 1 components: • Loop injection using 25 µg/ml caffeine • Test is conducted using Galaxie Software

  31. PS 325/335 Caffeine Loop Injection Test Test Calculates: Peak Height Peak Area Noise S/N

  32. Common Problems • High Noise • Lamp on, not ready • SIG_CC_SLIT_PEAK_NOT_FOUND • SIG_CC_SIGNAL_OVERRANGE_REPREFORM_ LAMP_CAL • COM_CC_CIRCULAR_BUFFER_OVERRUN _OCCURED • 9555 LMP_CC_D2_FILAMENT_FAILURE • Foggy Optics • PS 335 Error Messages Table can be found: • PS 335 Service Manual • Dealernet

  33. Foggy Optics • What is Foggy Optics?

  34. What is Foggy Optics? • Three types of Foggy optics • White powdery coating • Rust/brown spot burn • Speckled mirror (delamination)

  35. Foggy Optics • What is Foggy Optics? • Diagnosing Foggy Optics

  36. Diagnosing Foggy Optics • Run a “wavescan” test, • When bad • Open the optics and inspect.

  37. Wavescan test results Intensity for the 254 nm line Currently is 10 – 50 K counts

  38. False positive New D2 vs Aged D2 Intensities

  39. Foggy Optics • What is Foggy Optics? • Diagnosing Foggy Optics • Treating Foggy optics

  40. 0603 Project (Foggy Optics) • Proposed Fixes and their status: • White powder fogging: due to leaky flow cells and customer sample depositing on the mirrors • New Flow cells & fittings available for all cells except 4 x 0.15 • Brown powder fogging: due to UV attack on some of the foam parts close to the UV source. • Eliminating as much of the foam as possible and shielding the rest. • Mirror delamination:due to UV attack on the thin Al coating of the mirrors • Eliminated by putting a NiCr coating on the mirrors to strengthen the Al coating.

  41. Opening and cleaning the optics

  42. Cleaning 325 optics Clean area in circle Do not adjust!!

  43. Replacing Optics Wavelength calibration data must be entered into the 335 EEPROM

  44. Replacing Optics This label is attached to the top of each optics module, the shipping box and the test document

  45. Summary • Single and Dual Array • Optical path is open • Flow cell is dual path • Diagnostics Tests, like wavescan • Shipping Test • Main Problems (Foggy Optics)

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