A546–00–880 Issue C
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Installation
Figure 14 - Flow tube (4 slm)
If a different nitrogen flow rate is required please contact Edwards for further advice.
8. After you have commissioned the iGX system:
z If you want to continue to operate the iGX system, refer to Section 4.1, step 4.
z Otherwise, shut-down the system: refer to Section 4.3.
3.13 Install additional safety equipment
If the sensors or microprocessors fail, the total flow rate of nitrogen displayed or output by the iGX system may be
incorrect. If you need to know the total flow rate of nitrogen to the dry pump for safety reasons, you should therefore
fit suitable measurement equipment in the nitrogen supply pipeline. If you fit a rotameter, ensure that it is suitable
for use with nitrogen and that it is correctly calibrated.
If the nitrogen supply to the iGX system fails, a warning message will be shown on the Pump Display Terminal (if
fitted) and will be sent to the Interface Module(s) connected to the iGX system. Ensure that your installation is
configured so that it remains safe if there is a failure of the nitrogen supply to the iGX system.
If an alarm condition is detected (and the iGX system is not configured to ’run til crash’ refer to Section 4.4) the iGX
system will shutdown automatically. You must ensure that your installation remains safe if the iGX system shuts down
automatically.