PN 903-8797, Rev A
• Rotameter, to set the sample gas ow rate that will be used during the
Purge Stage. This ow rate measuring device can be a permanent instal-
lation if the rotameter is rated and approved for the pressure it will be
exposed to if the Vent Line is closed o. (Example, if the Vent Line is closed,
the rotameter must be able to withstand the pressure of the process line.)
If the rotameter being used cannot withstand the process gas line pres-
sure, it must be a temporary installation only; in this case, it must be
removed before running the analyzer under normal operating conditions.
Supplied by the customer/end user.
• Sample Probe, used to extract sample gas from the process pipeline. If the
Sample Probe is heated, it must be approved by the local authority for use
in the hazardous location.
The probe length must be between one-third and one-half the pipeline
diameter. The Sample Probe must also contain an isolation valve. Typically
supplied by the customer/end user.
• Supply of 1/4" 316 stainless steel tubing for the Sample and Vent Lines. If
the Sample and Vent Lines are heated (electrically heat traced), the lines
must be approved by the local authority for use in the hazardous location.
Supplied by the customer/end user.
• Supply of 1/8" stainless steel tubing for the Purge Gas Line. Supplied by
the customer/end user.
• Coalescing lter with an isolation valve or Flow Restrictor, if your system
will be operating at low pressures below 20 BAR (300 PSIG) and contains
large quantities of liquid droplets in the gas stream. Install this lter on the
Sample Line between the Sample Probe and the analyzer. Supplied by the
customer/end user.
Alternatively, a probe – such as a Genie – with an integral lter can be
used.
Installation and Start-Up | 2-5
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