Line of Sight Infrared Hydrocarbon Gas Detector AutroPath HC800 , 116-P-HC800/IGB, Rev. A, 2016-03-03
P/N 95-8744, v4.2 , rev. 3/16
Autronica Fire and Security AS
Page 14
iMpoRtant SafEtY notES
CautIon
The wiring procedures in this manual are intended
to ensure proper functioning of the system under
normal conditions. However, because of the
many variations in wiring codes and regulations,
total compliance to these ordinances cannot be
guaranteed. Be certain that all wiring complies
with the NeC as well as all local ordinances. If
in doubt, consult the authority having jurisdiction
before wiring the system. Installation must be
done by a properly trained person.
CautIon
This product has been tested and approved
for use in hazardous areas. However, it must
be properly installed and used only under the
conditions specifi ed within this manual and
the specifi c approval certifi cates. Any device
modifi cation, improper installation, or use in a
faulty or incomplete confi guration will render
warranty and product certifi cations invalid.
CautIon
The system contains no user serviceable internal
components. Service or repair should never be
attempted by the user. Device repair should be
performed only by the manufacturer or trained
service personnel.
lIaBIlItIES
The manufacturer’s warranty for this product is
void, and all liability for proper function of the
system is irrevocably transferred to the owner or
operator in the event that printed circuit boards
are removed or the device is serviced or repaired
by personnel not employed or authorized by
manufacturer, or if the system is used in a manner
not conforming to its intended use.
CautIon
observe precautions for handling electrostatic
sensitive devices.
NoTe
The AutroPath HC800 is intended for detection
of hydrocarbon vapors only. The device will not
detect hydrogen gas.
NoTe
The terminal compartment for AutroPath HC800
without relays is designed for either an increased
safety “e” termination or a fl ameproof “d”
termination of the supply cable. If a fl ameproof
connection is chosen, then an ATeX certifi ed
cable entry device must be used. The AutroPath
HC800 with relays requires ex d cable entry
devices only.
inStallation
IDentIFICAtIon oF VApor(S) to Be DeteCteD
It is necessary to identify the fl ammable vapor(s) of
interest at the job site in order to determine the proper
calibration gas setting for the AutroPath HC800. In
addition, the physical and fi re hazard properties
of the vapor, such as vapor density and fl ashpoint
should be identifi ed and used to assist in selecting the
optimum detector mounting locations within the area.
The detector must be installed by qualifi ed personnel
only, following local electrical equipment installation
practices.
SyStem LoCAtIoN CoNSIDeRAtIoNS
The AutroPath HC800 system is designed for
installation in hazardous industrial areas. Each module
is normally installed using a solid vertical steel post or
fl at surface mounting adapter to support the weight of
the module. The modules must be strategically located
so that the hydrocarbon vapor(s) to be detected will
intersect the light beam generated by the transmitter
module. Dispersion characteristics and behavior of the
vapor cloud resulting from a gas leak can be diffi cult to
estimate due to the signifi cant number of variables that
exist at different applications. Identifi cation of expected
gas leakage source(s), leak scenario identifi cation,
determination of prevailing wind direction, and onsite
leak simulation are the steps generally recommended
to provide the most accurate means of identifying
optimum system installation locations.
In all cases, the beam path and surrounding area
should be kept free of obstructions that could block
the infrared beam or hinder the free movement of air
within the area. A clear beam path of 20 cm diameter or
greater is required. The system is immune to the effects
of exposure to both direct and refl ected sunlight.
