Edwards iGx User Manual

© Edwards Limited 2014. All rights reserved. Page 13
Edwards and the Edwards logo are trade marks of Edwards Limited.
Installation
A546–00–880 Issue E
 The iGX system can be secured to the floor by fitting suitable bolts or studs (not supplied) through the 17.5
mm hole in the seismic brackets.
 If vibration transmission to the floor is a concern, suitable vibration isolators (not supplied) should be fitted
between the seismic brackets and the bolt or stud.
 Although the iGX system is supplied with four seismic brackets, two brackets are capable of protecting the
system during an earthquake. The system can therefore be secured as shown in Figure 7 for example, to
reduce the effective system footprint if required.
 If all four seismic brackets are to be used, ensure that the bolt spacing is adequate for the floor strength and
loads anticipated.
3.2 Lubrication
The iGX system is given a charge of oil before it leaves the factory. There is no requirement to check and adjust the
oil level.
3.3 Connect the iGX system to the vacuum/exhaust system and
interstage connection (if fitted)
Do not reuse any O-ring or O-ring assembly and do not allow debris to get into the iGX system during installation.
When connecting the iGX system to the vacuum system, take note of the following:
 To get the best pumping speed, ensure that the pipeline which connects the vacuum system to the iGX
system is the minimum length possible and has an internal diameter not less than the iGX system inlet-port.
 Ensure that all components in the vacuum pipeline have a maximum pressure rating which is greater than the
highest pressure that can be generated in the system.
 Incorporate flexible pipelines in the vacuum pipeline to reduce the transmission of vibration and to prevent
loading of coupling-joints. Edwards recommends using Edwards braided flexible pipelines. The pipelines
should be suitable for 110 °C.
 Adequately support vacuum/exhaust pipelines to prevent the transmission of stress to pipeline coupling-
joints.
 Incorporate a pressure gauge in the inlet pipeline, to determine that the iGX system operates correctly.
 The iGX system inlet must be able to be isolated from the atmosphere and from the vacuum system if
pumping or producing corrosive chemicals.
The outlet of the exhaust pipe can have a check-valve (optional accessory) fitted which prevents the suck-back of
exhaust vapours after the iGX system is shut down. The check-valve also provides additional attenuation of the pulses
in exhaust pressure.
WARNING
Pipe the exhaust to a suitable treatment plant to prevent the discharge of dangerous gases or
vapours to the surrounding atmosphere.
WARNING
Do not operate the system with the exhaust pipeline blocked. If the exhaust pipeline is blocked,
the system can generate exhaust pipeline pressures of up to 7 bar (7 x 10
5
Pa).

Edwards iGx Specifications

General

Brand	Edwards
Model	iGx
Category	Laboratory Equipment
Language	English