B800-00-880 Issue A
Page iv © Edwards Limited 2009. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Contents
Tables
Table Page
1 Power limits .............................................................................................................. 3
2 General data .............................................................................................................. 7
3 nEXT 240 pumps technical data ....................................................................................... 8
4 nEXT 300 pumps technical data ....................................................................................... 9
5 nEXT 400 pumps technical data ....................................................................................... 9
6 nEXT pumps technical data ...........................................................................................11
7 nEXT400 Performance Curve ..........................................................................................13
8 Vent gas specification and vent control .............................................................................17
9 Purge gas specification ................................................................................................18
10 Cooling water specification ...........................................................................................18
11 Logic interface technical data ........................................................................................19
12 Logic interface connector pins .......................................................................................20
13 Controller technical data ..............................................................................................21
14 Indicator LEDs ...........................................................................................................23
15 Operating and storage environment .................................................................................23
16 Checklist of components ...............................................................................................25
17 Summary of commands that can be sent to the nEXT pump .....................................................37
18 Command abbreviations ...............................................................................................38
19 Error codes ...............................................................................................................38
20 Vent options .............................................................................................................41
21 Vent-restrictor orifice diameter (with atmospheric pressure at the inlet of the vent-valve) ..............42
22 Power limit setting .....................................................................................................45
23 Analogue signal options ................................................................................................49
24 Behaviour of a pump when the power is re-instated after an electrical supply failure .....................57
25 Fault finding .............................................................................................................60
26 Flashing service codes .................................................................................................63
27 Flashing error codes ....................................................................................................63
28 Hexadecimal conversion table ........................................................................................64
29 Status flags ..............................................................................................................65
30 Example decoding of system status words ..........................................................................65
31 Inlet-flange seals and intergrated inlet screens ...................................................................70
32 Vent restrictors .........................................................................................................71
Trademark credits
Windows™ is trademark of Microsoft Corporation.
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