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Condumax II Transportable
Sampling System User’s Manual
Michell Instruments 1
INTRODUCTION
1 INTRODUCTION
The Condumax II Transportable Hydrocarbon Dew-Point Analyzer Sampling System
should be used in conjunction with the Condumax II Hydrocarbon Dew-Point Analyzer
User’s Manual.
The sampling system is in a custom designed, heavy duty, 316 stainless steel carry
case. The case is fitted with six feet on the base (for transportation), and on the base
edge (for upright analyzer system operation). It has six folding carry handles for ease
of mobility by two persons and can be transported between sites using a vehicle.
It features a Condumax II hydrocarbon dew-point analyzer, installed into the sampling
system for automatic measurements that can be taken under supervision by an operator.
The analyzer should not be left alone for extended periods unattended. It is designed
for operator monitored use only.
!
Warning!
This instrument can weigh up to 60kg (132lbs).
Manual lifting and handling should be done by two people
observing appropriate precautions.
NOTE: During transportation, and when not in actual operation, the unit must
be stored on its back (the six main feet opposite the lid face) and with the lid
in place to prevent damage and contamination.
NOTE: When not in use, the sample hoses should be disconnected from their
connections, and the dust protection caps should be replaced.
To assure correct measurement performance of this system in outdoor field use, the
ambient air temperature must be at least 5°C above both the hydrocarbon dew-point
temperature of the process gas sample at the cricondentherm condition, typically 27
barg (392 psig), and water dew point at full process line pressure.
The Condumax II Transportable Hydrocarbon Dew-Point Analyzer Sampling System is
specifically designed for the measurement of hydrocarbon & water dew points in natural
gas. It is a rudimentary sampling system suitable for spot check measurements under
the supervision of an operator. The system is configured with the necessary pressure
let-down and flow control required for measurement at pressure before finally venting
to an atmospheric or a low pressure flare vent line system.
A fast loop bypass flow arrangement is included to reduce sample flow response / time
lag and to enable the filter to be drained automatically of any potential hydrocarbon
liquids and hydrates that may be formed.
The system is configured for connection directly to transmission pipeline natural gas
at, typically, 70 barg (1015 psig) pressure (100 barg/ 1450 psig maximum). Sample
gas pressure reduction is incorporated via an electrically heated regulator for analysis
at intermediate pressure. It has an adjustment range up to 35 barg (500 psig) fitted
with line pressure gauge, 100 barg/ 1450 psig scale (analysis pressure indicated by the
Condumax II Main Unit).