Edwards nEXT200200 User Manual

List of Figures
Figur
e 1: nEXT200200 main inlet performance curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 2: nEXT200200 side inlet performance curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3: nEXT 200200 NW25 interstage port pumping speed. . . . . . . . . . . . . . . . . . . . . . . 20
Figure 4: nEXT200200 dimensions (mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 5: nEXT200200D/T B85xxx510 dimensions (mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 6: Max allowed rate of pressure rise during venng: pressure against me (pump
inially at full speed). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 7: Interface circuits for nEXT turbo pump controllers. . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 8: Controller connector showing pin numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 9: Typical pumping system with a nEXT pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 10: Logic interface connecons - parallel control. . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 11: Controller status informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 12: Logic interface connecons - RS232 serial control. . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 13: Logic interface connecons - RS485 serial control. . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 14: Conceptual diagram for mul-drop connecon using RS232 interface. . . . . . . 45
Figure 15: RS485 mul-drop connecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 16: Logic interface connecon - mixed parallel and serial operaon. . . . . . . . . . . . 51
Figure 17: Maximum relave humidity to avoid condensaon with water cooling. . . . . . 56
Figure 18: Serial and parallel control owchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 19: nEXT exploded accessories view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
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Edwards nEXT200200 Specifications

General

Brand	Edwards
Model	nEXT200200
Category	Water Pump
Language	English