Ametek 241CE II Operator's Manual page 49

• Rotameter, to set the sample gas flow rate that will be used during
the Purge Stage. This flow rate measuring device can be a permanent
installation if the rotameter is rated and approved for the pressure it
will be exposed to if the Vent Line is closed off. (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
pressure, it must be a temporary installation only; in this case, it must
be removed before running the analyzer under normal operating con-
ditions. 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 pipe-
line 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 filter with an isolation valve or Flow Restrictor, if your sys-
tem will be operating at low pressures below 20 BAR (300 PSIG) and
contains large quantities of liquid droplets in the gas stream. Install
this filter on the Sample Line between the Sample Probe and the ana-
lyzer. Supplied by the customer/end user.
Alternatively, a probe – such as a Genie – with an integral filter can be
used.
Installation and Start-Up
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