Edwards nEXT 240D User Manual

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Contents
B800-00-880 Issue D
Contents
Section Page
1 Introduction ....................................................................................... 1
1.1 Scope and definitions ................................................................................................... 1
1.2 General description ..................................................................................................... 2
1.3 Pump controller .......................................................................................................... 3
1.4 Operational features .................................................................................................... 3
1.4.1 Power limit setting ...................................................................................................... 3
1.4.2 Standby speed ............................................................................................................ 4
1.4.3 Timer ...................................................................................................................... 4
1.4.4 Analogue output ......................................................................................................... 4
1.4.5 Automatic vent options ................................................................................................. 4
1.4.6 Normal speed setting .................................................................................................... 5
1.5 Logic interface ........................................................................................................... 5
1.5.1 Parallel control and monitoring ....................................................................................... 5
1.5.2 Serial control and monitoring .......................................................................................... 6
1.5.3 Serial control with parallel monitoring ............................................................................... 6
1.5.4 Parallel control with serial monitoring or serial configuration ................................................... 6
1.5.5 Controller configuration (serial configuration) ...................................................................... 6
2 Technical data .................................................................................... 9
2.1 General .................................................................................................................... 9
2.2 Pumping media ........................................................................................................... 9
2.3 Vent gas specification and vent control data ......................................................................22
2.4 Purge gas specification ................................................................................................23
2.5 Cooling water ............................................................................................................23
2.6 Materials exposed to gases pumped .................................................................................23
2.7 Electrical data ...........................................................................................................24
2.8 Logic interface connector .............................................................................................24
2.9 Controller connector socket .......................................................................................... 27
2.10 Indicator LED’s ..........................................................................................................28
2.11 Operating and storage environment .................................................................................28
3 Installation ....................................................................................... 29
3.1 Unpack and inspect .....................................................................................................29
3.2 Typical installation .....................................................................................................29
3.3 Connection to the vacuum system ...................................................................................30
3.3.1 Inlet screen (supplied fitted on CF only) ............................................................................ 31
3.3.2 Mechanical fixing .......................................................................................................31
3.3.3 Inlet connection and orientation .....................................................................................31
3.3.4 Base mounting ...........................................................................................................32
3.3.5 Backing connection .....................................................................................................32
3.3.6 Interstage connection (variants only) ...............................................................................33
3.4 Purge gas connection ...................................................................................................33
3.4.1 Connect the purge gas .................................................................................................33
3.4.2 Recommended purge gas flow ........................................................................................33
3.5 Electrical installation ..................................................................................................33
3.5.1 Introduction .............................................................................................................33
3.5.2 Earth (ground) connections ...........................................................................................34
3.5.3 Connect the logic interface to the TIC ..............................................................................34
3.5.4 Connect the logic interface to the customer control equipment ...............................................34
3.5.5 Connect the electrical supply .........................................................................................34
3.6 Connection for parallel control and monitoring ...................................................................36
3.7 Connection for serial control and monitoring ......................................................................36
mv/11/2013

Edwards nEXT 240D Specifications

General

Brand	Edwards
Model	nEXT 240D
Category	Water Pump
Language	English