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

Safety Yamatake Corporation
iv Model HGC303 - Heat Value Gas Chromatograph
2. Cable systems
2.1 Thermoplastic sheathed cables, thermosetting sheathed cables, or elastomeric
sheathed cables can be selected for fixed wiring in the hazardous areas.
2.2 Flameproof cable entry devices (cable glands) certified to comply with EN 50018
and appropriate to the type of cable employed, must be used for the connection of
cables to the apparatus.
3. Conduit systems
For conduit systems, relevant national standards or codes of practice are followed
prior to the following recommendations.
3.1 Screwed heavy gauge steel, solid drawn or seam welded conduit, or flexible
conduit for protection of cables in explosive atmospheres (see ISO 10807) can
be selected for fixed wiring in the hazardous areas.
3.2 Conduit must be threaded for connection to permit the full engagement of five
threads.
3.3 Either conduit entry devices or sealing devices such as stopping boxes are
provided at the wall of the apparatus enclosure to limit the pressure piling effect
and to prevent hot gases from entering the conduit system from the enclosure
containing a source of ignition. Each type of both the devices must be certified
to comply with EN 50018.
3.4 The stopping boxes, if used, are filled with a compound which does not shrink
or setting and is impervious to, and unaffected by, chemicals found in the
hazardous area. The depth of the compound in the stopping box is at least equal
to the internal diameter of the conduit, but in no case less than 10 mm.
3.5 When the conduit contains three or more non-seathed single or multi-core
cables, the total cross-sectional areas of cables, including insulation, are not more
than 40% of the cross-sectional area of the conduit.
4. Installation in explosive atmospheres caused by air / dust mixtures
4.1 Conduit or cable glands, if employed to connect cables to the apparatus, must be
selected and used in such a way that an IP6X protection (dust-tight) is guaranteed.
4.2 It is recommended to maintain the apparatus so that the dust layer will not exceed
a thickness of 5 mm.
~Note Where the ignition temperature of a dust layer up to 5 mm thickness is
equal to, or higher than, the value that is obtained by adding 75K to the
maximum surface temperature of the enclosure “T...°C” as marked on the
apparatus, the apparatus is incapable of causing ignition of the dust
layer. (T...°C is based on the maximum ambient temperature)

Yamatake Corporation Safety
Model HGC303 - Heat Value Gas Chromatograph v
(2) Installation for FM Explosionproof / Flameproof Apparatus (in
accordance with NEC)
CAUTION
• Install the apparatus only in hazardous (classified) locations for which the
apparatus has been approved.
• Seal each conduit entering the apparatus enclosure within 18 in.(457 mm)
from the enclosure.
• Do not open the apparatus enclosure when an explosive atmosphere is
present.
Figure S-1 An example of conduit seal (with stopping plug)
Figure S-2 An example of conduit seals (without stopping plug)

Safety Yamatake Corporation
vi Model HGC303 - Heat Value Gas Chromatograph
1. Class I, Division 1 locations
1.1 Wiring methods
•Threaded rigid metal conduit, threaded steel intermediate metal conduit, or
Type MI cable with termination fittings approved for the location, can be
employed
•Threaded joints must be made up with at least five threads fully engaged.
• Boxes, fittings, and joints must be approved for Class I, Division 1.
1.2 Sealing
• Each conduit entering the apparatus enclosure is required to be sealed
within 18 in. (457 mm) from the enclosure.
• The sealing of each conduit can be provided with a sealing fitting approved for
class I locations.
•Sealing compound must be approved and must not have a melting point of less
than 93° (200°F).
• The minimum thickness of the sealing compound should not be less than the
trade size of the conduit and, in no case, less than 5/8 in.(16 mm).
• Splices and taps cannot be made in the fittings.
2. Class I, Division 2 locations
2.1 Wiring methods
•Threaded rigid metal conduit, threaded steel intermediate metal conduit,
enclosed gasketed busways, or Type PLTC cable in accordance with the
provisions of remote-control, signaling, and power-limited circuits (see NEC,
Article 725), or Type ITC cable in cable trays, in raceways, supported by
messenger wire, or directly buried where the cable is listed for this use; Type
MI, MC, MV, or TC cable with approved termination fittings can be
employed.
• Boxes, fittings, and joints are not required to be explosionproof.
2.2 Sealing
• Each conduit entering the apparatus enclosure is required to be sealed as shown in 1.2.
3. Class II, Division 1 locations
3.1 Wiring methods
•Threaded rigid metal conduit, threaded steel intermediate metal conduit, or
Type MI cable with termination fittings approved for the location, can be
employed.
• Boxes and fittings must be dusttight.
3.2 Sealing
• Where a raceway provides communication between the apparatus enclosure and
an enclosure that is not required to be dust-ignitionproof, suitable means must be
provided to prevent the entrance of dust into the dust-ignitionproof enclosure
through the raceway. One of the following means can be used: (1) a permanent
and effective seal; (2) a horizontal raceway not less than 10 ft (3.05 m) long; or
(3) a vertical raceway not less than 5 ft (1.52 m) long and extending downward
from the dust-ignitionproof enclosure.
• Seals are not required to be explosionproof.

Yamatake Corporation Safety
Model HGC303 - Heat Value Gas Chromatograph vii
4. Class II, Division 2 locations
4.1 Wiring methods
•Rigid metal conduit, intermediate metal conduit, electrical metallic tubing,
dust-tight wireways, or Type MC or MI cable with approved termination
fittings, or Type PLTC in cable trays, or Type ITC in cable trays, or Type
MC or TC cable installed in ladder, ventilated trough, or ventilated channel
cable trays in a single layer, with a space not less than the larger cable
diameter between the two adjacent cables, can be employed.
• All boxes and fittings must be dusttight.
4.2 Sealing
• Sealing means must be provided as shown in 3.2.
5. Class III, Division 1 locations
5.1 Wiring methods
•Rigid metal conduit, rigid non-metallic conduit, intermediate metal conduit,
electrical metallic tubing, dust-tight wireways, or Type MC or MI cable with
approved termination fittings, can be employed.
• All boxes and fittings must be dusttight.
5.2 Sealing
• Sealing means are not required.
6. Class III, Division 2 locations
6.1 Wiring methods
• Wiring methods must comply with 5.1.
6.2 Sealing
• Sealing means are not required.

Safety Yamatake Corporation
viii Model HGC303 - Heat Value Gas Chromatograph

Table of Contents
Chapter 1: Introduction
1-1: Definition of terms ......................................................................................... 1-1
1-2: General ......................................................................................................... 1-3
1-3: Model HGC303 measuring system ............................................................... 1-4
1-4: Model HGC303 Structure.............................................................................. 1-5
1-5: Fieldbus communication system................................................................... 1-6
Chapter 2: Installation
2-1: Unpacking and storing .................................................................................. 2-1
2-2: Selecting an interface and installation .......................................................... 2-3
2-2-1: Installing the model HFA100 ........................................................... 2-3
2-2-2: Installing the National Instruments Fieldbus-PC Interface............... 2-7
2-3: HGM installation............................................................................................ 2-8
2-3-1: Computer system requirements ...................................................... 2-8
2-3-2: Windows installation ........................................................................ 2-8
2-3-3: HGM software installation................................................................ 2-9
2-4: Fieldbus installation ...................................................................................... 2-11
2-4-1: Fieldbus requirements ..................................................................... 2-11
2-4-2: Fieldbus wiring................................................................................. 2-13
2-5: Model HGC303 installation ........................................................................... 2-14
2-5-1: Installation site................................................................................. 2-14
2-5-2: Model HGC303 dimensions............................................................. 2-15
2-5-3: Model HGC303 installation example ............................................... 2-16
2-5-4: Model HGC303 piping ..................................................................... 2-17
2-5-5: Model HGC303 wiring ..................................................................... 2-19
Chapter 3: Operation
3-1: Starting up the model HGC303..................................................................... 3-1
3-1-1: Secondary pressure and flow set .................................................... 3-1
3-1-2: Piping leak check............................................................................. 3-1
3-1-3: Power on ......................................................................................... 3-2
3-1-4: Model HGC303 leak check.............................................................. 3-3
3-2: Stopping the model HGC303 ........................................................................ 3-4
3-3: HGM operation.............................................................................................. 3-4
3-3: Introduction ......................................................................................... 3-4
Functions .................................................................................................. 3-4
3-3-1: Getting started with model HFA100................................................. 3-5
3-3-2: Getting started with PCMCIA-FBUS................................................ 3-8
3-3-3: HGM Main menu ............................................................................. 3-14

Table of Contents
3-3-4: Set up HGM..................................................................................... 3-15
3-3-5: User's mode menu and commands ................................................. 3-22
3-3-6: Main displays of HGM ..................................................................... 3-23
3-3-7: Report.............................................................................................. 3-28
3-3-8: Configuration mode ......................................................................... 3-31
3-3-9: HGM shut down............................................................................... 3-38
3-4: Calibration..................................................................................................... 3-39
3-4-1: Calibration gas requirement ............................................................ 3-39
3-4-2: Calibration procedure ...................................................................... 3-40
3-4-3: Calibration function.......................................................................... 3-44
3-4-4: Description of component data table ............................................... 3-46
3-4-5: Report.............................................................................................. 3-47
3-4-6: Calibration methods......................................................................... 3-48
3-5: GPA mode .................................................................................................... 3-50
3-5-1: Setting the HGM to GPA ................................................................. 3-50
3-5-2: Data save ........................................................................................ 3-51
3-5-3: Data edit .......................................................................................... 3-51
3-5-4: File auto saving ............................................................................... 3-52
3-5-5: Configuration mode ......................................................................... 3-53
3-5-6: User's mode (GPA).......................................................................... 3-58
3-5-7: Main display panels of HGM (GPA)................................................. 3-60
3-5-8: Report (GPA)................................................................................... 3-65
Chapter 4: Maintenance
4-1: Checking and changing the carrier gas ........................................................ 4-1
4-2: Checking and changing the filters in model HGC303 ................................... 4-1
4-3: Overhaul ....................................................................................................... 4-1
Chapter 5: Troubleshooting
Appendix
GPA calculation.................................................................................................... A-1
Description of normalization method.......................................................... A-1
Formulas .................................................................................................... A-3
ISO calculation ..................................................................................................... A-8
Description of normalization method.......................................................... A-8
Formulas .................................................................................................... A-10
List of replacement parts...................................................................................... A-12
Drawings .............................................................................................................. A-13

List of Figure
Figure S-1 An example of conduit seal (with stopping plug) ............................... v
Figure S-2 An example of conduit seals (without stopping plug) ........................ v
Figure 1-1 Model HGC303 measuring system diagram...................................... 1-4
Figure 1-2 Main parts of Model HGC303 ............................................................ 1-5
Figure 2-1 HFA configuration initial display ........................................................ 2-4
Figure 2-2 Model HFA100 operation check display ............................................ 2-5
Figure 2-3 Setup message.................................................................................. 2-9
Figure 2-4 HGM installation location................................................................... 2-9
Figure 2-5 Group name....................................................................................... 2-10
Figure 2-6 Complete installation ......................................................................... 2-10
Figure 2-7 Example of Type A fieldbus cable structure ...................................... 2-11
Figure 2-8 Example of cable finish...................................................................... 2-13
Figure 2-9 Model HGC303 dimension ................................................................ 2-15
Figure 2-10 Example of model HGC303 installation with mounting bracket......... 2-16
Figure 2-11 Piping location ................................................................................... 2-17
Figure 2-12 Wiring location ................................................................................... 2-19
Figure 3-1 Leak check ........................................................................................ 3-3
Figure 3-2 Model HGC303-HGM connection example ....................................... 3-5
Figure 3-3 Model HGC303-HGM connection example ....................................... 3-8
Figure 3-4 Main menu......................................................................................... 3-14
Figure 3-5 Set up HGM display........................................................................... 3-15
Figure 3-6 Example of saved data files (.hv1) .................................................... 3-19
Figure 3-7 User's mode display .......................................................................... 3-22
Figure 3-8 Trend graph of SCV and the total concentration (Raw)..................... 3-24
Figure 3-9 Trend chromatogram (online) ............................................................ 3-25
Figure 3-10 Zoom box........................................................................................... 3-26
Figure 3-11 Trend graph of carrier pressure and oven temp. control ................... 3-27
Figure 3-12 User report entry form ....................................................................... 3-28
Figure 3-13 User report......................................................................................... 3-29
Figure 3-14 Configuration mode display ............................................................... 3-31
Figure 3-15 Calibration setting panel .................................................................... 3-44
Figure 3-16 Component data table ....................................................................... 3-46
Figure 3-17 Preview screen of report.................................................................... 3-47
Figure 3-18 Setup HGM display (GPA)................................................................. 3-50
Figure 3-19 Normalization method setting (GPA) ................................................. 3-50
Figure 3-20 An Example of saved data files (.hv2) ............................................... 3-51
Figure 3-21 Configuration mode display (GPA) .................................................... 3-53
Figure 3-22 Output configuration panel (GPA) ..................................................... 3-54
Figure 3-23 User’s mode display (GPA) ............................................................... 3-58
Figure 3-24 BTU trend graph and the total of raw concentration.......................... 3-62
Figure 3-25 Trend Chromatogram (online) ........................................................... 3-63
Figure 3-26 Trend graph of carrier pressure and oven temp. control ................... 3-64
Figure 3-27 Report entry form (GPA).................................................................... 3-65
Figure 3-28 User report (GPA mode).................................................................... 3-66

List of Table
Table 2-1: Fieldbus cable description.................................................................... 2-11
Table 2-2: Conduit type ......................................................................................... 2-15
Table 2-3: Piping description................................................................................. 2-17
Table 2-4: Gas specifications ................................................................................ 2-18
Table 2-5: Wiring description................................................................................. 2-19
Table 3-1 Gas specifications ................................................................................ 3-1
Table 3-2 The procedure to start up the model HGC303 system......................... 3-2
Table 3-3 Model HGC303 leak test procedure ..................................................... 3-3
Table 3-4 Stopping model HGC303 operation ..................................................... 3-4
Table 3-5 Main menu description ......................................................................... 3-14
Table 3-6 Set up HGM description ....................................................................... 3-16
Table 3-7 Set up online mode .............................................................................. 3-17
Table 3-8 Analyzer status and available functions ............................................... 3-18
Table 3-9 Save data description........................................................................... 3-18
Table 3-10 Description of user’s mode display....................................................... 3-22
Table 3-11 Description of the indication panel ....................................................... 3-23
Table 3-12 Trend graph of SCV and total raw concentration description............... 3-24
Table 3-13 Chromatogram description ................................................................... 3-25
Table 3-14 Description of trend graph of carrier gas pressure
and oven temperature control .............................................................. 3-27
Table 3-15 Description of user report ..................................................................... 3-30
Table 3-16 Description of configuration mode display............................................ 3-32
Table 3-17 Possible configurations of PV12-20 ..................................................... 3-34
Table 3-18 Stopping the HGM................................................................................ 3-38
Table 3-19 Example of calibration action ............................................................... 3-43
Table 3-20 Calibration factor setting....................................................................... 3-45
Table 3-21 Description of component data table.................................................... 3-46
Table 3-22 Manual calibration procedure ............................................................... 3-48
Table 3-23 Operating auto calibration procedure ................................................... 3-49
Table 3-24 The contents of each line of .hv2 ......................................................... 3-52
Table 3-25 Description of configuration mode display (GPA)................................. 3-53
Table 3-26 Possible configurations of PV12-20 (GPA) .......................................... 3-54
Table 3-27 Description of user’s mode display (GPA)............................................ 3-58
Table 3-28 The difference between ISO and GPA mode in user’s mode............... 3-59
Table 3-29 Indication panel description (GPA)....................................................... 3-60
Table 3-30 Trend graph of BTU and Total raw concentration description.............. 3-62
Table 3-31 Chromatogram description ................................................................... 3-63
Table 3-32 Trend graph of Carrier gas pressure and Oven temperature control ... 3-64
Table 5-1 Model HGC303 self-diagnostics........................................................... 5-1
Table A-1 An example of the calculated normalized concentration
and heating value ................................................................................. A-2
Table A-2 Physical constants of selected hydrocarbons
and non-hydrocarbons ......................................................................... A-7

Model HGC303 - Heat Value Gas Chromatograph 1-1
Chapter 1 : Introduction
1-1 : Definition of terms
Heat Value Gas Chromatograph (Model HGC303)
The Heat Value Gas Chromatograph measures process gases (N2,
CO2, C1~C6+) that are mainly contained in natural gas, calculates
heat value, density, Wobbe index and compressibility factor, and
converts them into a Fieldbus signal in the field and transmits the
signal to a receiver.
Parameters can all be remotely set, adjusted, and self-diagnosed by
using the HGM.
Measuring and calculating methods comply with ISO 6974 Part 4 and
ISO 6976.
HGC Modbus Interface Unit (Model HMU303)
The model HMU303 Modbus Interface can convert a
Fieldbus signal into a Modbus signal.
Monitoring of such data as heat value can be done using a
Modbus signal as well as a Fieldbus signal.
See the model HMU303 User's manual for more details.
HGC Data Manager (Model HDM303)
Model HDM303 is Modbus interface unit for model HGC303.
Model HDM303 covers all the function of model HMU303.
Model HDM303 also has a powerful functions.
The functions are local display, data storage function, multi
Modbus serial port, multi stream switching, and analog output.
HMU can not be connected together with HDM in the same FB
loop. Only one HMU can be connected in one FB loop with the
HGC. Two or more HDM can be connected in the same FB
loop. For this application, the HDM must be configured first.
Please refer to the model HDM303 User's Manual for more details.
Heat Value Gas Chromatograph Fieldbus Adaptor (Model HFA100)
HFA is an interface used to connect the HGM (HGC
monitor), Windows-based PC application, to
Yamatake’s state of the art analyzer, HGC (Heat value
Gas Chromatograph) that operates on FOUNDATION™
fieldbus H1 network. Users are able to configure,
monitor and maintain the HGC all from the PC by
simply connecting the HFA to the Fieldbus network.
HGC000
0

Introduction Yamatake Corporation
1-2 Model HGC303 - Heat Value Gas Chromatograph
HGC Monitor (HGM)
HGM software is provided as a standard accessory
with the model HGC303.
The model HGC303 Monitor allows the user to con-
figure and calibrate the model HGC303 as well as
allowing one to monitor a heat value-trend graph.
Moreover, HGM also has a report function for con-
cise management.
SP (Set Point)
The set value of each variable.
PV (Process variable)
The present value of each variable.
SCV
Superior Calorific Value
ICV
Inferior Calorific Value
TCD
Thermal Conductivity Detector
URV
Upper Range Value
LRV
Lower Range Value
Total (Raw)
Total of raw concentration
Component name
C6+: Hexane and heavier gas
C3H8: Propane
i-C4H10: i-Butane
n-C4H10: n-Butane
neo-C5H12: neo-Pentane
i-C5H12: i-Pentane
n-C5H12: n-Pentane
N2: Nitrogen
CH4: Methane
CO2: Carbon dioxide
C2H6: Ethane
HGM000001000P

Yamatake Corporation Introduction
Model HGC303 - Heat Value Gas Chromatograph 1-3
1-2 : General
The model HGC303 is a gas chromatograph designed to analyze natural gas and is
able to transmit a process variable via a Fieldbus signal.
One can easily adjust configuration data and monitor values such as the heat value by
using the HGM.
The heat value monitoring system, which can be controlled from both the model
HGC303 and HGM, will substantially minimize time, cost and maintenance.
This chapter first describes the measuring system and structure of the model HGC303.
After that, the characteristics and the specifications of Fieldbus are described in detail.
First time users of the model HGC303 should read this chapter carefully and thor-
oughly.
~Note *: This is not necessary if using the model HFA100. However, the model
HFA100 can only run on Windows 2000 / XP. If you are running an
operating system other than Windows 2000 / XP, purchase the National
Instruments Fieldbus-PC Interface.
Components of the model HGC303 system
Before installing the model HGC303, the following components must be prepared:
Hardware
Model HGC303
Model HMU303
Model HFA100
Power supply (24 V DC, 4A min.), Power supply cable
Fieldbus cable (See “2-4-1 : Fieldbus requirements” on page 2-11)
Flow meter for process gas
(A flow meter for methane should be used scale: 0 - 200 ml/min.)
Laptop or desktop PC
(See “2-3-1 : Computer system requirements” on page 2-8 for detail)
The National Instruments Fieldbus-PC interface*
(See “2-2-2 : Installing the National Instruments Fieldbus-PC Interface” on page 2-7 for
detail)
Helium gas for carrier gas and valve operating gas
Calibration gas
1/8 inch stainless steel (SS) tubing
Fitting for piping (1/4 NPT male, 5 pieces)
Software
Microsoft Windows 98 / Me / NT / 2000 / XP
HGM

Introduction Yamatake Corporation
1-4 Model HGC303 - Heat Value Gas Chromatograph
1-3 : Model HGC303 measuring system
Figure 1-1 Model HGC303 measuring system diagram
The Heat Value Gas Chromatograph measures process gases (N2, CO2, C1~C6+) that
are mainly contained in natural gas, calculates heat value, density, Wobbe index and
compressibility factor, and converts them into a Fieldbus signal in the field and trans-
mits the signal to receivers.
Parameters can be remotely set, adjusted, and self-diagnosed with the HGM.
CAUTION
A block valve is a kind of air actuator valve. It is used mainly for the protection of
the TCD and columns.
It works as sample shut-off valve when the pressure of the carrier gas or air supply
is lower than approximately 294 kPa.
Yamatake recommends that it should be installed.
T
T
Modbus
RS2320
or
RS422/RS485
HMU-
HGC303
HGM
POWER
DC
24V
Manual
Switch
(for manual
calibration)
*
*
*
Safe Area Field
Modbus
Converter
PS
ALARM 50L RELAY
FB Fieldbus
POWER
AIR
CARR
INLET
Inline
Filter
Sampling
flow meter
50ml/mh
Needle
valve
Needle
valve
Block
valve
Block
valve
Bypass
flow meter
3-way
valve
(for manual
calibration)
Solenoid
valve
(24V DC)
350 - 450 kPa 350 - 450 kPa
Required for manual calibration.
(at least one of them)
: Terminator
AIR/N2/He He Standard
Gas
Sample Gas
NG
PIPE LINE
RETURN to
low pressure
line
VENT (Open to Air)
AIR VENT
TCD-VENT
OUTLET
T
OUTPUT

Yamatake Corporation Introduction
Model HGC303 - Heat Value Gas Chromatograph 1-5
1-4 : Model HGC303 Structure
Figure 1-2 Main parts of Model HGC303
1 Terminal housing ..........Terminal box for wiring.
2 Analyzer unit housing...Micro valve, solenoid valve, TCD sensor are located here.
3 Manifold........................Connection parts for gas inlet and outlet line
4 Oven cover....................Analyzer valve and column system are found inside the
cover.
Terminal housing
Analyzer unit housing
Terminal cover
Manifold
Oven cover
HGC000004000D

Introduction Yamatake Corporation
1-6 Model HGC303 - Heat Value Gas Chromatograph
1-5 : Fieldbus communication system
The model HGC303 uses FOUNDATION™ fieldbus technology to transfer information
between other devices.
The FOUNDATION™ fieldbus is an open, 2-wire, multi-drop, two-way digital commu-
nication system which interconnects field equipment such as sensors, actuators and
controllers.
The FOUNDATION™ fieldbus is supported by a worldwide network of customers and
manufacturers in Europe, North America and Asia Pacific.
FOUNDATION™ fieldbus http://www.fieldbus.org/
FOUNDATION™ fieldbus literature
(1) FOUNDATION™ fieldbus Technical overview (FD-043)
(2) Fieldbus Installation & Planning Guide (AG-165)
(3) FOUNDATION™ fieldbus Application Guide
31.25kbit/s Wiring and Installation (AG-140)
(4) FOUNDATION™ fieldbus Application Guide
31.25kbit/s Intrinsically Safe Systems (AG-163)