ABB ACX Commissioning Instruction page 9

Safety Tips for Handling the Analyzer System
Additional Safety Tips for Handling the Analyzer System with
Integrated VOC Analyzer
CI/ACX-EN Rev. D
CAUTION!
Do not open any gas paths in the analyzer system or in the integrated analyzers.
Doing so will damage gas path seal integrity.
If system-internal gas paths are opened, a seal integrity check must be performed
with a leak detector (thermal conductivity) when the device is reassembled.
CAUTION!
The combustion gas path in the analyzer system and especially in the integrated
VOC analyzer must not be opened! The combustion gas feed path can become leaky
as a result!
If the system-internal combustion gas path is opened, a seal integrity check must be
performed with a leak detector (thermal conductivity) when the device is
reassembled.
The bulkhead connector with integrated flow limiter for connection of the
combustion gas line is a safety relevant part. It must not be removed, modified or
replaced!
It is recommended to check regularly the seal integrity of the combustion gas line
outside the analyzer system.
WARNING!
Combustion gas flowing out of leaks in the gas paths can cause fire and explosions
(even outside the analyzer system itself).
A shut-off valve must be installed in the combustion gas supply line to increase safety
in the following operating conditions:
•
During shutdown of the gas analyzer,
•
In the event of failure of the instrument air supply,
•
Leakage in the combustion gas feed path inside the gas analyzer.
This shut-off valve should be installed outside the analyzer house in the vicinity of the
combustion gas supply (cylinder, line).
ACX Analyzer System Commissioning Instruction 9