Edwards 9773512584, Instruction Manual

Page: 23 / 180

Table 6
Gas module types and flows
Gas module type
Description Cycle
Gas flows (slm)
Total
flow
Shaft
seal
purge
Inlet
purge
Manually-
adjusted
gas
ballast
Additional
gas ballast*
Exhaust
purge
Light duty (All GXS
systems)†
Shaft seal only
Off 0 n/a n/a n/a n/a 0
Green mode 12 n/a n/a n/a n/a 12
On process 12 n/a n/a n/a n/a 12
Shut down 12 n/a n/a n/a n/a 12
Medium duty (GXS160
and GXS250 systems)†
Electronically controlled gas ballast purge
(with manually adjusted flow) + inlet
purge + exhaust purge
Off 0 0 0 n/a 0 0
Green mode 12 0 0 n/a 6 18
On process 12 0 0-34 n/a 6 18-52
Shut down 12 16 0 n/a 6 34
Medium duty (GXS450
and GXS750 systems)†
Gas ballast purge (with manually adjusted
flow) + inlet purge + exhaust purge +
option of an additional electronically
controlled gas ballast*
Off 0 0 0 0 0 0
Green mode 12 0 0-64 0 6 18-82
On process 12 0 0-64
0 (default)
64 (enabled)
6 18-146
Shut down 12 26 0-64 0 6 44-108
* By default the dry pumping system is supplied with the additional gas ballast which is switched off. This additional gas ballast can be enabled in software
using an optional PDT.
† The dry pumping systems in a standard configuration must run with a seal purge. If the application requires removal of a seal purge, consult our
application specialist.
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M58800880_H - Technical data