Manual
EI-5 Manual Rev A 1
The Hetek Ethane Identier, Model EI-5, is a portable, highly sensitive bat-
tery operated combustible gas analyzer designed specically to detect the
presence of Ethane in Natural Gas by elution (separation).
The Ethane Identier is a supplementary instrument, used primarily when
it is necessary to determine in the eld, whether or not a particular com-
bustible indication is the result of escaping utility natural gas or a conict
gas such as naturally occurring methane.
Occasionally, it becomes necessary for a gas utility to identify a combus-
tible gas or vapor in the eld, to determine whether it is the gas normally
distributed by that utility, or perhaps a fermentation gas (marsh gas, landll
gas, soil gas) that is sometimes present in the ground or in sub-surface
structures.
It has been found that a satisfactory “tracer” in natural gas distribution
areas is Ethane. Ethane is usually present in signicant concentrations in
natural gas, but it is not present in the general run of conict gases, such
as fermentation gases, gasoline and solvents. In many areas, natural gas
being distributed is de-ethanized to the level that the Ethane component is
not detectable by old style hot-wire instruments. Ethane is being stripped
out at the gas elds or scrubbing centres and diverted as a feedstock for
the petrochemical industry. However, some residual Ethane still remains in
natural gas and this Ethane is readily detectable by highly sensitive instru-
ments such as the Hetek Ethane Identier.
It must be understood that this instrument is not
a quantitative instrument and does not replace a
Combustible Gas Indicator (C.G.I.). Users should
continue to use a Heath Detecto Pak Infrared (DP-
IR) or Combustible Gas Indicator to locate and
measure leaks.
Features:
• Detects the presence or absence of eth-
ane in less than 2 minutes
• Graphical color display
• Building data logging
• Wrapping memory
• One second logging rate, 64000 reads
• Carrier gas not required/ Built in pump
INTRODUCTION