Yamatake HGC303 User manual

Heat Value Gas Chromatograph
Model: HGC303
User’s Manual
CM2-HGC100-2001
First issue: Apr. 2001, Rev.12: Oct. 2004
HGC000001000P

Copyright, Notices and Trademarks
Printed in Japan - © 2001-2004 Yamatake Corporation ALL RIGHTS RESERVED
While this information is presented in good faith and believed to be accurate, Yamatake
disclaims the implied warranties of merchantability and fitness for a particular purpose
and makes no express warranties except as may be stated in its written agreement with
and for its customer.
In no event shall Yamatake Corporation be liable to anyone for any indirect, special or
consequential damages. The information and specifications in this document are subject
to change without notice.
Microsoft®, Windows®, and MS-DOS®are registered trademarks of Microsoft Corpo-
ration.
Windows™ and Excel™ are trademarks of Microsoft Corporation.
NI-FBUS™ is a trademark of NATIONAL INSTRUMENTS CORPORATION®.

Model HGC303 - Heat Value Gas Chromatograph i
Safety
Safety symbols
Be sure to correctly operate the model HGC303 while strictly observing the safety
precautions provided in this manual-especially the Warnings and Cautions indicated
by the symbols as shown below.
The descriptions of the Warning and Caution signs used in this manual are as follows.
WARNING
The Warning sign means that serious personal injury, even death, could result if the
instructions given are not strictly observed.
CAUTION
The Caution sign means that light personal injury and/or equipment damage could
result if the instructions given are not correctly observed.

Safety Yamatake Corporation
ii Model HGC303 - Heat Value Gas Chromatograph
Hazardous Areas Certifications
The model HGC303 complies with the type of protection, which based on the
following standards.
(1) ISSeP/ATEX Flameproof Certification
0344
II 2 GD
EEx d II C T6 -10°C<Tamb<+50°C IP65
ISSeP01ATEX003X
Special conditions for safe use (symbol X)
The fastening screws of this apparatus are made of stainless steel and have a
yield stress of 500 N/mm².
(2) FM Explosionproof / Flameproof Approval
Explosionproof for Class I, Division 1, Groups C and D, T4
Flameproof for Class I, Zone 1, AEx d IIB T4
Dust-ignitionproof for Class II and III, Division 1, Groups E, F and G, T4
(3) TestSafe Flameproof Certification
Ex d IIC T6
DIP A21 TAT6
The vent plug must be removed and 1/4 NPT fitting must be connected for piping.
Therefore, the model HGC303 can be installed in various hazardous locations.
However, an explosion-protected electrical apparatus requires special care. Please read
all instruction and safety notes before installation.
WARNING
NEVER open the terminal box cover while the model HGC303 is energized in a
hazardous location.
CAUTION
Use the model HGC303 only in an ambient temperature of -10 to 50 ° C (14 to 122 ° F)
CAUTION
Take precautions to prevent corrosion, deformation or damage to the housing or
terminal box cover.
CAUTION
See that all conduits are properly sealed. Otherwise, the model HGC303 cannot
withstand the pressure that can result from explosion of an explosive gas inside the
housing. Also, the model HGC303 cannot prevent the explosion of any external
explosive gas.

Yamatake Corporation Safety
Model HGC303 - Heat Value Gas Chromatograph iii
(1) Installation for ISSeP/ATEX Flameproof Apparatus
1. General
1.1 The apparatus protected by the flameproof enclosure in accordance with EN
50018 can be installed in such hazardous areas, for which the apparatus has been
certified, as an explosive atmosphere containing flammable substances in the form
of gas, vapour, mist or dust may be present.
~Note The apparatus has been certified to comply with EN 50281-1-1 (dust
ignition protection).
1.2 The apparatus enclosure must be kept closed in the hazardous areas when the
apparatus is energized because the internal circuit of the apparatus is capable of
igniting the explosive atmosphere. (Never connect any hand-held communicator to
the apparatus terminals by opening the cover, except while no explosive
atmosphere is present.)
1.3 It is required to connect the external earthing terminal of the apparatus to the
equipotential bonding system which includes protective conductors, metal
conduits, metal cable sheaths, steel wire armouring and metallic parts of structures,
but does not include the neutral conductors of the power systems.
~Note The protective conductor to which exposed conductive parts of equipment
(machines, apparatus, devices, components and instrumentation thereof)
are connected, must be separated in the hazardous area from the neutral
conductor, and must be connected to the power systems earth point in the
non-hazardous area, if the power system is directly earthed.
For external earthing and bonding of the apparatus it is recommended to use a
cable lug so that the conductor is secured against loosening and twisting and that
the contact pressure is permanently secured.
1.4 Either cable systems (cable entry systems) or conduit systems can be employed
for wiring of the apparatus in the hazardous areas (see 2 or 3).
1.5 Non-sheathed single core cables are not permitted for live conductors unless
they are installed inside enclosures or conduit systems.
1.6 Conduits and, in special cases, cables (for example, where there is a pressure
difference) must be sealed so as to prevent the passage of the explosive
atmosphere.
1.7 Further information concerning installation and maintenance of apparatus is
given by relevant clauses of the following documents.
EN 60079-14 Electrical apparatus for explosive gas atmospheres
Part 14: Electrical installations in hazardous areas other than mines
EN 60079-17 Part 17: Inspection and maintenance of electrical installations in
hazardous areas.
EN 50281-1-2 Electrical apparatus for use in the presence of combustible dust
Part 1-2: Electrical apparatus protected by enclosures
-- Selection, installation and maintenance