viii
Figures
Figure 1. The 2020PROPlus Instrument ................................................. 32
Figure 2. The 2020PROPlus Block Diagram ......................................... 33
Figure 3. Photoionization Detector........................................................ 35
Figure 4. Battery Pack Removal and Replacement ............................... 40
Figure 5. The 2020PROPlus Display ..................................................... 41
Figure 6. User Menu – Unit Setup........................................................ 42
Figure 7. User Menu – Data Log Options ............................................. 42
Figure 8. User Menu – Memory Slots ................................................... 43
Figure 9. Logging Off Mode Display………………………………....51
Figure 10. Tag Mode Display................................................................ 44
Figure 11. Interval Mode Display.......................................................... 45
Figure 12. Unit Setup Map .................................................................... 52
Figure 13. Setting the Time.................................................................. 54
Figure 14. Sample Collection Mode...................................................... 56
Figure 15. Response Factor and Memory Slots..................................... 57
Figure 16. Calibration with Flow-Match............................................... 62
Figure 17. Gas Bag Adapter .................................................................. 64
Figure 18. Tube Holder ........................................................................ 70
Figure 19. Dräger Pre-filter Tubes........................................................ 71
Figure 20. Removing the UV Lamp ...................................................... 80
Figure 21. Replacing the Inlet Filter...................................................... 83
Figure 22. Using the Gas Bag................................................................ 97