© Edwards Limited 2012. All rights reserved. Page 49
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Maintenance
M561-00-880 Issue C
5.6 Gas module configuration
The gas module configuration may be adjusted to suit process demands.
5.6.1 iXH single mode and single mode+
The iXH Single Mode gas module has 2 manually-adjustable operational modes:
Medium
Harsh
In addition to this, the Single Mode + gas module has a further operational mode:
Harsh + Inlet
The factory default setting for all gas modules is Harsh, except for the iXH1220H and iXH1820H models which contain
the SM+96 gas module set to Medium.
Contact Edwards service personnel for instructions on how to access the configuration menu (via the PDT) and for
process-specific recommendations.
Use the following procedure to change the gas module mode:
1. Remove the left hand side panel of the pumping system.
2. Identify the gas module (Contact Edwards for guidance).
3. Use a short flat-blade screwdriver to turn the adjustment screw on the front of the gas module by 1/4 turn.
4. If adjustment screw slot is vertical then turn clockwise for medium mode.
5. If adjustment screw slot is horizontal then turn anticlockwise for harsh mode.
6. Refit side panel.
7. Access the Config menu on the PDT (requires an access code, contact Edwards).
8. Scroll down to Gas Process - press ENTER.
9. Scroll through options Harsh / Med / Harsh + Inlet - use ENTER to select desired option.
10.Scroll down to Default N
2
Setup - press ENTER.
11. PDT displays: Set Default Yes (Press Enter) - confirm default - Press ENTER.
5.6.2 Multi mode
The iXH and iXL Multi Mode gas modules have a number of electronically-adjustable operational modes:
Medium
Harsh
+Inlet purge
+Exhaust purge
Contact Edwards service personnel for instructions on how to access the configuration menu (via the PDT) and for
process-specific recommendations.
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