Ametek ASR900, Installation And Maintenance Manual

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3-2 | Heated Acid Gas Sample Probe (Large Diameter)
Safety Considerations
Before installing the HAG Probe and powering up its Heater, review
and follow all safety information in this chapter and under “Personnel
and Equipment Safety Information” following the Table of Contents.
This information describes procedures to follow to avoid personal
injury and/or damage to the equipment.
All regulatory agency
and personnel safety procedures for your jurisdiction must be
followed.
Take all appropriate safety precautions to prepare for replacing the
existing Sample Valve with a HAG Probe.
This includes obtaining a “hot permit” plus meeting all other safety
requirements, as required by company and hazardous areas safety
policies.
Under normal operating conditions, lethal concentrations of H
2
S and
other toxic gases from the process duct may be present within the
sample system. The sample system is defined as all components in the
analyzer system through which sample gas passes.
A breathing apparatus must be worn when installing/removing
equipment from the sample gas extraction point. The sample stream is
under positive pressure, and injury or death from inhaling toxic gases
in the sample stream could result from attempting to install/remove
equipment without the use of a breathing apparatus.
!
WARNING
!
WARNING
!
WARNING