Install Additional Safety Equipment - Edwards iXL600 Instruction Manual

3.13

Install additional safety equipment

If the Process Tool/control system needs to know the total flow rate of nitrogen to the system for
safety reasons, install suitable measurement equipment in the nitrogen supply pipeline.
If using nitrogen purge to dilute dangerous gases to a safe level, ensure that the system shuts down
if the nitrogen supply to the system fails.
If the sensors or microprocessors fail, the total flow rate of nitrogen displayed or output by the pumping system may
be incorrect. If the total flow rate of nitrogen to the dry pump is required for safety reasons, fit suitable
measurement equipment in the nitrogen supply pipeline. If a rotameter is fitted, ensure that it is suitable for use
with nitrogen and that it is correctly calibrated.
If the nitrogen supply to the pumping system fails (iXL600N/iXL1000N MFT variant only), a warning LED will illuminate
and a message will be shown on the Pump Display Terminal (if fitted) and will be sent to any interfacing system
connected to the pumping system. Ensure that the installation is configured so that it remains safe if there is a failure
of the nitrogen supply to the pumping system.
If an alarm condition is detected (and the pumping system is not configured to 'run til crash' refer to
the pumping system will shut down automatically. Ensure that the installation remains safe if the pumping system
shuts down automatically.
© Edwards Limited 2015. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
WARNING
WARNING
A540-55-880 Issue D
Section 4.4)
Page 29