The information contained in this document is subject to change without notice.
This manual is based on the production version of the Flame Ionization Detector 2 Analyzer Module.
Hardware and/or software changes may have occurred since this printing.
Rosemount Analytical's NGA 2000 system of Modular Gas Analyzers and Controllers are patented,
under U.S. Patent 5.787.015.
Teflon® is a registered trademark of E.I. duPont de Nemours and Co., Inc.
Kynar® is a registered trademark of Pennwalt, Inc.
Manual Part Number 748412-C
October 2000
Printed in U.S.A.
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
A-1. Typical Flow Rates With Premixed Fuel.................................................... A1
A-2. Analyzer Characteristics For Different Fuels............................................. A1
Flame Ionization Detector 2 Analyzer Module
vi
Rosemount Analytical NGA 2000
748412-C
October 2000
Page 9
CONTENTS
PURPOSE/SAFETY SUMMARY
The purpose of this manual is to provide information concerning the components, functions,
installation and maintenance of this particular NGA 2000 module.
Some sections may describe equipment not used in your configuration. The user should
become thoroughly fa miliar with the operation of this mo dule before opera ting it. Read this
instruction manual completel y .
To avoid explosion, loss of life, personal injury and damage to this equipment
and on-site property, all personnel authorized to install, operate and service this
equipment should be thoroughly familiar with and strictly follow the instructions
in this manual. Save these instructions.
If this equipment is used in a manner not specified in these instructions,
protective systems may be impaired.
DANGER is used to indicate the presence of a hazard which will cause severe personal
injury, death, or substantial property damage if the warning is ignored.
WARNING is used to indicate the presence of a hazard which can cause severe personal
injury, death, or substantial property damage if the warning is ignored.
CAUTION is used to indicate the presence of a hazard which will or can cause minor
personal injury or property damage if the warning is ignored.
NOTE is used to indicate installation, operation or maintenance information which is
important but not hazard-related.
WARNING: ELECTRICAL SHOCK HAZARD
Operate this equipment only when covers are secured. Servicing requires
access to live parts which can cause death or serious injury. Refer servicing to
qualified personnel. For safety and proper performance, this module must be
connected to a properly grounded three-wire source of electrical power.
748412-C
October 2000
Flame Ionization Detector 2 Analyzer Module
Rosemount Analytical NGA 2000
vii
Page 10
PREFACE
WARNING: POSSIBLE EXPLOSION HAZARD
This equipment is used in the analysis of sample gases which may be
flammable, and the burner fuel used in the ionization process IS flammable. A
system of intrinsically safe electronics and an explosion proof tower are used to
prevent any ignition of a flammable gas leak. For this to be effective, the module
MUST be placed in a well-ventilated area, with unobstructed air flow around it.
DO NOT place it within another enclosure without assuring this ventilation.
DO NOT obstruct the vent holes on the top and sides of the module.
DO NOT place the FID module within another enclosure unless the latter has a
guaranteed air circulation such as to dilute a worst case fuel or sample leak
below 25% of the LEL. Doing so will negate the safety features and may result in
an explosion, serious injury, property damage and death.
WARNING: FLAMMABLE SAMPLES
Consult the factory if flammable samples will be measured.
WARNING: PARTS INTEGRITY
Tampering with or unauthorized substitution of components may adversely
affect safety of this product. Use only factory-approved components for repair.
WARNING: POSSIBLE EXPLOSION HAZARD
Ensure that all gas connections are made as labeled and are leak free. Improper
gas connections could result in explosion and death.
WARNING: STATIC ELECTRICITY
Circuit boards in this instrument are static-sensitive. Take all static precautions
when handling the circuit boards.
Flame Ionization Detector 2 Analyzer Module
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Rosemount Analytical NGA 2000
748412-C
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Page 11
PREFACE
WARNING: POSSIBLE EXPLOSION HAZARD
Protection against explosion depends upon a special fuel flow restrictor in the
fuel inlet fitting. DO NOT REMOVE THE FUEL INLET RESTRICTOR. Use the
correct fuel flow restrictor for the fuel being used. Do not use 100% hydrogen
fuel in a 40% H2/60% He configured FID module. Replace with factory supplied
fitting only.
CAUTION: PRESSURIZED GAS
This module requires calibration with a known standard gas. See General
Precautions for Handling and Storing High Pressure Gas Cylinders at the rear of
this manual.
CAUTION: OVERBALANCE HAZARD
This Analyzer Module may tip instrument over if it is pulled out too far and the
Platform is not properly supported.
CAUTION: CONTROLLED ENVIRONMENT
This equipment is for use in a controlled environment. Refer to the
specifications (page P7) in this manual for environmental conditions.
CAUTION: HOT OVEN COMPONENTS
The oven and sample manifold are controlled to 80
down before touching any of these components.
NOTE
This Analyzer Module is completely leak-tested at the factory for gas leakage. The
user is responsible for testing for leakage at the inlet and outlet fittings on the rear
panel (with a test procedure chosen by the user). The user is also responsible for
leak-testing periodically and if any internal pneumatic components are adjusted or
replaced. See leak test instructions on page 2-5.
°°°°
C. Allow the analyzer to cool
748412-C
October 2000
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Rosemount Analytical NGA 2000
P3
Page 12
PREFACE
GLOSSARY
Analyzer Module
The module that contains all sensor/detector components for development of a Primary
Variable signal; includes all signal conditioning and temperature control circuitry.
Backplane
The interconnect circuit board which the Controller Board, Power Supply, Analyzer Module
power and network cables, I/O Modules and Expansion Modules plug into.
Control Module
The Operator Interface plus the Controller Board.
Controller Board
The computer board that serves as the Network Manager and operates the Display and
Keypad.
Diluent
The material used to dilute another material. In air, nitrogen is the diluent for the oxygen we
need to breathe.
Distribution Assembly
The Backplane and the card cages that hold I/O and Expansion Modules.
Expansion Module
A circuit board that plugs into the Backplane from the front of the Platform and performs
special features not related to I/O functions.
Flame Ionization
A technique for measuring hydrocarbon gases. A flame is used to ionize the carbon atoms,
and the charge thus generated is measured.
Gas Chromatography
A technique of separating gas stream components using absorption media, allowing the
detector to measure individual species within the stream.
Flame Ionization Detector 2 Analyzer Module
P4
Rosemount Analytical NGA 2000
748412-C
October 2000
Page 13
PREFACE
Hydrocarbon
A chemical containing only hydrogen and carbon atoms. Methane, propane and octane are
hydrocarbons.
Hydrocarbons
Organic molecules containing just carbon and hydrogen. Methane, propane and oils are
example of hydrocarbons.
I/O Module
A circuit board that plugs into the Backplane from the rear of the Platform. Has a connector
terminal for communication with external data acquisition devices and provides an
input/output function.
Ionization
Generation of electrically charged particles from a neutral material. In the FID, the flame
causes hydrocarbon molecules to split into such charged ions.
LED
Light Emitting Diode – a solid state indicator light.
Operator Interface
The Display and Keyboard.
Platform
Any workable collection of the following: Controller Board, Power Supply, Distribution
Assembly, Enclosure and Operator Interface.
Power Supply
Any of a variety of components that provides conditioned power to other NGA 2000
components, from the Power Supply Board that plugs into the front of the Backplane in a
stand-alone instrument to several larger ones that can power larger collections of modules
and components.
Primary Variable
The measured species concentration value from an Analyzer Module.
748412-C
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Rosemount Analytical NGA 2000
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PREFACE
Purge
A safety system that uses an air flow to keep any fuel gas leak under the lower explosive
limit (LEL).
Sample Conditioning
The process of altering the state of the sample gas so as to make it suitable for an analyzer.
This includes removing condensable water, changing the pressure, and filtering.
Secondary Variable
Data placed on the network by a module regarding current status, e.g., sample flow, source
voltage and other diagnostic information.
Softkeys
The five function keys located below the front panel display; they assume the function
displayed directly above each on the display, a function dictated by software.
Species
A particular gas within a mixture. Oxygen is a species in air.
Subnode
A subsection of the analyzer devoted to measuring one of the species for which it is set up.
Analyzers with multiple subnodes can measure multiple gases.
System
Any collection of Analyzer Module(s), Platform(s), I/O Module(s) and Expansion Module(s).
Flame Ionization Detector 2 Analyzer Module
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Rosemount Analytical NGA 2000
748412-C
October 2000
Page 15
SPECIFICATIONS - GENERAL
PREFACE
M
EASUREMENT SPECIES
H2/HE FUEL
R
EPEATABILITY
MINIMUM DETECTABLE LEVEL
N
OISE
L
INEARITY
R
ESPONSE TIME
Z
ERO DRIFT
S
PAN DRIFT
E
FFECT OF TEMPERATURE
O
PERATING TEMPERATURE
Total hydrocarbons
low range: 0 to 4 ppm CH4, through 0 to 1% CH
high range:: 0 to 50 ppm CH4, through 0 to <5% CH
4
4
≤1% of fullscale at a constant temperature, sample flow
and fuel, burner air and sample pressure
0.04 ppm H2/He fuel – methane equivalent
≤1% of fullscale, peak to peak
≤ ±1% of fullscale for H2/He fuel and H2 fuel
<1 second for bypass flow rate of 500 cc/min (for a
sample change at the rear panel connector of the
instrument)
≤±1% of fullscale/24 hours at constant temperature,
hydrocarbon concentration of supply gases, sample flow
and fuel, burner air and sample pressure
≤±1% of fullscale/24 hours at constant temperature,
hydrocarbon concentration of supply gases, sample flow
and fuel, burner air and sample pressure
≤±2% of fullscale for any temperature chang e o f 10°C
and rate of change less than 10°C/hour
41°F to 104°F (5°C to 40°C)
O
PERATING HUMIDITY
P
OWER REQUIREMENTS
748412-C
October 2000
<95% relative humidity, non-condensing
+24 VDC ±5%, 120 W max.. direct to analyzer module;
Ripple and Noise: <100 mV peak to peak
Line and Load Regulations: <±1%
Flame Ionization Detector 2 Analyzer Module
Rosemount Analytical NGA 2000
P7
Page 16
PREFACE
SPECIFICATIONS - GAS REQUIREMENTS
B
URNER AIR
F
LOW RATE
THC
S
UPPLY PRESSURE
F
UEL GAS (STANDARD
F
LOW RATE
THC
S
UPPLY PRESSURE
Hydrocarbon free grade air
350 to 400 ml/min
≤0.1 ppm CH
4
1725 to 3450 hPa-gauge (25 to 50 psig)
Premixed 40% hydrogen and 60% helium
)
110 to 110 ml/min.
≤0.5 ppm CH
4
3101 to 3450 hPa-gauge (45 to 50 psig)
WARNING: POSSIBLE EXPLOSION HAZARD
DO NOT USE PURE HYDROGEN FUEL. An explosion res ulting in severe
personal injury or death could occur. Also, each Analyzer Module is
factory-configured for mixed, and cannot use the fuel for which it was not
configured unless field reconfiguration is done.
S
AMPLE
F
LOW RATE
S
UPPLY PRESSURE
T
EMPERATURE
P
ARTICULATES
D
EWPOINT
Non-flammable (below 100% of LEL)
0.5 to 2.0 L/min.
483 to 1035 hPa-gauge (7 to 15 psig)
32°F to 248°F (0°C to 120°C), <20°C variance/24 hours,
<10°C variance/hour
General Purpose for installation in weather
protected area
1600 m (1 mile)
SPECIFICATIONS - GAS CONNECTIONS
S
AMPLE IN
B
URNER AIR IN
F
UEL IN
B
YPASS OUT
B
URNER EXHAUST
O
UT
1/4 inch O.D. tube fitting
1/4 inch O.D. tube fitting
1/4 inch O.D. tube fitting
1/4 inch O.D. tube fitting
3/8 inch O.D. tube slip-fit connection, tygon or equivalent
(this connection shall slope downward 6° minimum from
horizontal)
T
HE BURNER EXHAUST AND BYPASS OUT SHALL BE VENTED TO ATMOSPHERIC PRESSURE
AND TO A NON
-
CLASSIFIED LOCATION
.
See the Preface Section of the Platform manual for specifications regarding Platform related
components.
748412-C
October 2000
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Rosemount Analytical NGA 2000
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Page 18
PREFACE
CUSTOMER SERVICE, TECHNICAL ASSISTANCE AND FIELD SERVICE
For order administration, replacement Parts, application assistance, on-site or factory repair,
service or maintenance contract information, contact:
Rosemount Analytical Inc.
Process Analytical Division
Customer Service Center
1-800-433-6076
RETURNING PARTS TO THE FACTORY
Before returning parts, contact the Customer Service Center and request a Returned
Materials Authorization (RMA) number. Please have the following information when you call:
Model Number, Serial Number, and Purchase Order Number or Sales Order Number.
Prior authorization by the factory must be obtained before returned materials will be
accepted. Unauthorized returns will be returned to the send er, freight collect.
When return ing any product or compon ent that has been expo sed to a toxic, co rrosive or
other hazardous material or used in such a hazardous environment, the user must attach an
appropriate Material Safety Data Sheet (M.S.D.S.) or a written certification that the material
has been decontaminated, disinfected and/or detoxified.
Return to:
Rosemount Analytical Inc.
4125 East La Palma Avenue
Anaheim, California 92807-1802
USA
T
RAINING
A comprehensive Factory Training Program of operator and service classes is available.
For a copy of the Current Operator and Service Training Schedule contact the Technical
Services Department at:
Flame Ionization Detector 2 Analyzer Module
P10
Rosemount Analytical NGA 2000
Rosemount Analytical Inc.
Phone: 1-714-986-7600
FAX: 1-714-577-8006
748412-C
October 2000
Page 19
PREFACE
DOCUMENTATION
The following Flame Ionization Detector 2 Analyzer Module instruction materials are
available. Contact Customer Service or the local representative to order.
748412 Instruction Manual (this document)
C
OMPLIANCES
This product may carry approvals from several certifying agencies, like The Canadian
Standards Association (CSA), which is also an OSHA accredited Nationally Recognized
Testing Laboratory (NRTL), and LCIE - a French Notified Body.
The certification marks appear on the product name-rating plate.
NRTL /C
®
LCIE 98 ATEX 6004 X
EEx d ib IIB (+H
0°C Ta +40°C
Date of Manufacture:
0081
) T6
2
II 2 G
Rosemount Analytical has satisfied all obligations from the European Legislation to
harmonize the product requirement in Europe.
This product complies with the standard level of NAMUR EMC
NAMUR
Recommendations (1993).
This product satisfies all obligations of all relevant standards of the EMC framework in
Australia and New Zealand.
N96
748412-C
October 2000
Flame Ionization Detector 2 Analyzer Module
Rosemount Analytical NGA 2000
P11
Page 20
PREFACE
NOTES
Flame Ionization Detector 2 Analyzer Module
P12
Rosemount Analytical NGA 2000
748412-C
October 2000
Page 21
PREFACE
QUICK STARTUP PROCEDURE
The purpose of this reference guide is to provide a easy to follow, step by step procedure
through initial start up and ignition of the FID2 Analyzer Module. This procedure assumes
that the customer has already made all necessary electrical and gas connections and
established the proper network connections.
1. Turn on power to the instrument. The #1 LED (POWER) will illuminate. The #3 LED
(BLOCK) will begin flashin g.
2. If sample gas has been connected and the sample pressure to the analyzer is sufficient
to provide an accurate reading, the #4 LED (SAMPLE) will be illumninated.
3. Allow the analyzer module to warm up and the burner block temperature to reach the
proper minimum ignition temperature (50°C). When the burner block temperature
reaches the minimum ignition temperature, the #5 LED (IGNITE OK) will come on.
4. The instrument is now ready to be lit. Lighting the burner can be conducted in one of
two methods: a) manual ignition from the front panel of the Analyzer Module or b)
autoignite from the Platform.
FID 2
F
IGURE
748412-C
October 2000
FUEL OVERRIDE
IGNITE
P-1. FID2 F
POWER FLAME BLOCK SAMPLE IGNITE FUEL/AIR
OK
RONT PANEL
3 2 1 LON2 LON1
T 6A
24V
Flame Ionization Detector 2 Analyzer Module
Rosemount Analytical NGA 2000
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Page 22
PREFACE
a. To light the instrument from the Analyzer Module, hold the "FUEL
b. To light the instrument from the Platform using the autoignite mode, simply press
OVERRIDE/IGNITE" switch (located to the left of the indicator lights) in the up
(FUEL OVERRIDE) position for 30 seconds. Immediately move the switch to the
down (IGNITE) position. The "IGNITE" mode is automatically set to stay on for a
preset time period and does not require the switch to be held down. If the lighting
procedure was successful, the #2 LED (FLA ME) will begin flashing as the flame
temperature rises to the correct operating temperature. Once this LED becomes
solidly lit, the flame has reached operating temperature.
the "light" softkey shown in the "Light Flame" menu of the Platform. The Analyzer
Module will begin to go through an automated sequence of enrichment and
ignition similar to the manual mode described in step 5. If the burner fails to light
on the first try, the Analyzer Module will perform 2 more tries before terminating
the autoignite sequence. If the Analyzer Module fails to light after 3 attempts, an
error message will be displayed sho wing the cause of the fault.
5. If the burner fails to light, check all gas connections for proper gas composition and
pressure, block temperature, and outlets for obstructions. Repeat step 4.
6. If the flame is lit, the #2 LED will begin flashing. Once the flame temperature has
reached the correct operating temperature, the LED will remain on solid.
7. If the fuel and air pressures and ratios are within proper operating parameters to
support a continuous flame operation, the # 6 LED (FUEL/AIR) will illuminate. This light
will not be on before or during flame ignition.
8. Once the burner block temperature reaches the control temperature of 80°C, the #3
LED will stay on solid.
9. If the instrument has been successfully lit, the temperatures are up to proper operating
levels, and the fuel, air, and sample gases are properly adjusted to support the flame
and achieve reliable results, all 6 indicator lights will be lit solid.
The unit is now ready for calibration or burner optimization.
Flame Ionization Detector 2 Analyzer Module
P14
Rosemount Analytical NGA 2000
748412-C
October 2000
Page 23
INTRODUCTION
1.1 OVERVIEW
This manual describes the Flame Ionization Detector (FID2) Analyzer Module of Rosemount
Analytical's NGA 2000 Series of gas analysis components. See Figure 1-1.
The FID2 Analyzer Module is designed to use a flame ionization technique to measure the
total concentration of hydrocarbon (including certain oxygenated hydrocarbons)
components within the sample stream.
The entire FID2 Analyzer Module is designed as a module with electrical connections at its
front, and gas connections made from the rear. All electronics relative to sample control and
signal conditioning are included in this module.
1
FRONT
Intrinsic Safety Board
Module Board
Computer Board
Regulator
Burner
Oven
(Cover removed)
REAR
Flow Control Manifold
F
IGURE
748412-C
October 2000
1-1. FID2 A
NALYZER MODULE
Flame Ionization Detector 2 Analyzer Module
Rosemount Analytical NGA 2000
1
Page 24
1
+++
+
+
INTRODUCTION
1.2 TYPICAL APPLICATIONS
Typical applications for the FID2 Analyzer Module include:
The monitoring of atmospheric air for low-level total hydrocarbon contaminants
Determining the total hydrocarbon content of exhaust emissions from internal combustion
engines
Carbon bed monitoring
Determining the total hydrocarbons content of process and product gases from air
separation plants
1.3 THEORY OF TECHNOLOGY
This Analyzer Module uses the flame ionization method of detection. The sensor is a burner
in which a regulated flow of gas sample passes through a flame sustained by regulated
flows of a fuel gas (a hydrogen/diluent mixture) and air.
Within the flame, the hydrocarbon components of the sample stream undergo a complex
ionization that produces electrons and positive ions. Polarized electrodes collect these ions,
causing current to flow through an electronic measuring circuit.
Igniter
Exhaust
-
Ions
Negative
Electrode
Flame
Positive
Electrode
-
-
-
-
Air
Fuel + Sample
F
IGURE
Flame Ionization Detector 2 Analyzer Module
2
Rosemount Analytical NGA 2000
1-2. F
LAME IONIZATION DETECTION TECHNOLOGY
748412-C
October 2000
Page 25
INTRODUCTION
The ionization current is proportional to the rate at which carbon atoms enter the burner,
and is therefore a measure of the concentration of hydrocarbons in the sample.
The gas pressures are continuously monitored and controlled through electronic pressure
transducers.
The measurement of concentration is placed on the network, where it can be shown on the
Platform Display or on other data acquisition devices.
FID EXHAUST
2
FUEL FLOW
CONTROL
FLUISTER
VALVE
659541
4
MANIFOLD
SENSOR, FUEL
PRESSURE
0-30 PSIG
659498
FTG, ELBOW
1/16T-1/8MPT
904582
(3)
659072
659038
659037
FLOW CONTROL
MANIFOLD ASSEMBLY
659043
FUEL IN
FTG, BULKHEAD
W/RESTRICTOR
1/4T-1/8MPT
1
AIR IN
FTG, MALE CONN
1/4T-1/8MPT
008435
W/FILTER 017154
REAR PANEL5
SAMPLE IN
FTG, BULKHEAD
SAMPLE OUT
FTG, MALE CONN
1/4T-1/8MPT
008435
5 REAR PANEL IS INCLUDED IN F LOW CONTROL MANIFOLD ASSEMBLY 659043.
4 MANIFOLD ASSEMBLY 659043 MUST BE RETURNED TO FACTORY WHEN REPLACMENT OF AIR AND/OR FUEL FLOW FLUISTER VALVES IS REQUIRED.
REAR SECTION OF ANALYZER FRONT SECTION OF ANALYZER
FLOW CONTROL
FLUISTOR
AIR
659070
THERMISTOR
BURNER
BLOCK HEATER
2
FUEL
J1
FLAME
FUEL
PRESSURE
SENSOR
0-30 PSIG
J12J13J3J11J4
SAMPLE
RESSURE
SENSOR
0-15 PSIG
J6
POLARIZED
COLLECTOR
1
CABLE
CONTINUITY
FLOW CONTROL
NCNC
J7J2
J9
J16
J8J5
IGNITER
BURNER BLOCK
2
AIR
FLUISTOR
PRESSURE
SENSOR
0-30 PSIG
INTRINSICALLY SAFE BOARD
POLARIZED
COLLECTOR
1
RTD
BURNER BLOCK ASSEMBLY
1
CONNECTORS J5 AND J6 ON INTRINSICALLY SAFE BOARD ARE INTERCHANGEABLE.
FACTORY REPLACEMENT.
2
MIDDLE
SECTION OF
ANALYZER
THIS SECTION OF INTRINSICALLY
SAFE BOARD CONTAINS CURRENT-
LIMITING RESISTORS
J15
J8J11
NCNC
THIS SECTION OF
INTRI N S I CALLY SAF E BO ARD
CONTAINS ±15 SUPPLIES,
+90V SUPPLY AND LOW-
LEVEL ANALOG CIRCUITS
J15
J15J14J25
MODULE BOARD 659060
J6J5
COMPUTER BOARD
658350
J7
J14J17
J1J4
J2
J3
J22
J24
J22
LON1
LON2
24V POWER
F
IGURE
Flame Ionization Detector 2 Analyzer Module
4
Rosemount Analytical NGA 2000
1-4. FID2 W
IRING DIAGRAM
748412-C
October 2000
Page 27
INTRODUCTION
1.4 GAS SAFETY FEATURES
The FID2 module is divided into two parts - a pneumatic section and an electronic section.
The two sections are separated by a pair of solid partitions to prevent any leak of gas in the
pneumatic section from reaching the electronics. The electrical connections into the
pneumatic section are made intrinsically safe by a series of over-voltage protection devices
and current limiting resistors. The burner itself is an explosion-proof assembly. The
combination of these two techniques allows the analyzer to meet international safety
standards without the use of an expensive continuous-dilution purge - but ONLY when it is
installed in a general purpose area with good air circulation.
WARNING: POSSIBLE EXPLOSION HAZARD
Hydrocarbon concentration(s) in the sample gas must be below the Lower
Explosion Limit (LEL).
1
All tubing ahead of the burner is rigid metallic tubing assembled with ferrule/nut type
compression fittings. However, should an internal fuel leak occur, a worst-case leak would
be dissipated below 25% of the LEL of hydrogen by natural dilution outside of the pneumatic
section before it could be ignited by any external ignition source, and there is nothing within
the pneumatic section to ignite it.
The FID2 is designed to use 40% H2/60% He fuel at a maximum inlet pressure of 3446 hPagauge (50 psig).
1
WARNING: POSSIBLE EXPLOSION HAZARD
Protection against explosion depends upon a special fuel flow restrictor at the
fuel inlet. DO NOT REMOVE THE FUEL INLET RESTRICTOR.
1.5 FUEL GAS OPTION
The standard FID2 Analyzer Module requires 40% hydrogen/60% helium burner fuel gas.
For monitoring internal combustion exhaust emissions or other sample gas with varying
oxygen content, mixed fuel is preferable. In fact, a hydrogen/helium mixture is more
desirable than a hydrogen/nitrogen mixture. With this type of sample, the use of mixed fuel
gas minimizes the error introduced by oxygen synergism.
1
The fuel restrictor is part of the Flow Control Manifold Assembly, which is specific to an application.
748412-C
October 2000
Flame Ionization Detector 2 Analyzer Module
Rosemount Analytical NGA 2000
5
Page 28
1
INTRODUCTION
Changes in the burner air flow rate have little effect on signal strength. For a given flow, the
signal can be optimized by adjusting the fuel flow rate.
Typical flow rates to the burner:
GAS FLOWMIXED FUEL
F
UEL
S
AMPLE
A
IR
T
ABLE
1-1. G
AS FLOW RATES
100 cc/min
10 cc/min
400 cc/min
ANALYZER CHARACTERISTICS40% H2/60% He
F
ULL SCALE SENSITIVITY
F
UEL CONSUMPTION
O
PERATING SETTING FOR SAMPLE PRESSURE REGULATOR
T
ABLE
1-2. A
NALYZER CHARACTERISTICS RELATIVE TO FUEL GAS
4 ppm, CH4 to <1%, CH
100 to 110 cc/min
345 hPa-gauge (5 psig)
4
Flame Ionization Detector 2 Analyzer Module
6
Rosemount Analytical NGA 2000
748412-C
October 2000
Page 29
INSTALLATION
2.1 UNPACKING
When the FID2 Analyzer Module is received, carefully examine the shipping carton and
contents for signs of damage. Immediately notify the shipping carrier if the carton or
contents is damaged. Retain the carton and packing material until all components
associated with the Analyzer Module are operational.
2.2 ASSEMBLY
The FID2 analyzer module MUST NOT be placed within a conventional NGA platform,
single module enclosure or dual module enclosure since the latter would not allow free flow
of air around the module, thus violating its safety certification. The enclosure is designed so
that this would be very hard to do anyway.
2
There is a special platform specifically designed to accept this module; consult the factory
for details.
Install the Platform and I/O Module(s) according to guidelines in the Platform manual.
2.3 LOCATION
WARNING: POSSIBLE EXPLOSION HAZARD
Do not place the FID2 module within another enclosure unless the latter has a
guaranteed air circulation such as to dilute a worst case fuel or sample leak
below 25% of the LEL. Failure to will negate the safety features and may result
in explosion, serious injury, material damage and death. Also, do not cover the
vent holes on the top and sides of the module.
Install the Analyzer Module in a clean, weather-proofed, non-hazardous, vibration-free
location free from extreme temperature variations. For best results, install the Analyzer
Module near the sample stream to minimize sample transport time.
Operating ambient temperature is 5 °C to 40 °C, limited to temperature changes of less than
10 °C/hr. Acceptable dew point range is less than 95% relative humidity, but not in excess
of 40°C wet bulb temperature.
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INSTALLATION
The cylinders of fuel, air, and calibration gases should be located in an area of relatively
constant ambient temperature .
2.4 G
During normal operation, the Analyzer Module requires fuel and air to maintain the burner
flame as well as suitable standard gases for. Refer to the criteria for selection of these
gases in Section 2.4.2.
After initial startup or after startup following a prolonged shutdown, the analyzer may display
baseline drift for a considerable period of time, particularly on the most sensitive range.
Commonly, the drift is caused by small amounts of organics (such as hydrocarbons) in the
inner walls of the tubing in both the internal flow system and the external gas supply system.
Drift results from any factor influencing the equilibrium of these adsorbed hydrocarbons,
such as temperature or pressure. Hydrocarbons adsorbed within the analyzer in the gas
passageways (or in the fuel or air lin es) will elevate the overall baseline.
Note that this type of drift occurs only when the flame is burning. If drift occurs when the
flame is extinguished, the electronic circuitry is at fault or the burner or cabling is
contaminated with a conductive film. To minimize drift, use clean fuel and air, keep the
analyzer clean, and locate the gas cylinders in an area of relatively constant ambient
temperature.
The cylinders supplying all gases each should be equipped with a clean, hydrocarbon-free,
two-stage regulator and a shutoff valve.
ASES
All new external gas tubing (except for SAMPLE BYPASS) is strongly recommended,
preferably pre-cleaned, stainless steel, gas chromatograph-grade tubing. Thoroughly clean
before use (if a hydrocarbon-based cleaning solvent such as acetone is used, purge tubing
with dry nitrogen or helium for several minutes before using.)
Gas line connections are compression fittings. Do not use pipe thread tape on such fittings.
Since the oxidation of hydrogen is accompanied by the formation of water vapor, the
exhaust tubing always should be slanted downward at least 6 degrees from horizontal.
Otherwise, water may accumulate in the line, causing back pressure and noisy readings, or
may back up in the line and flood the burner.
If the sample is toxic or noxious, or is to be reclaimed, connect the Bypass outlet to a
suitable disposal system. Do not use any device that may cause back pressure in the line.
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4.3
[110]
8.2
[208]
22.6
[573]
2.9
[73]
[19]
INSTALLATION
.6
[16]
.8
[17]
.7
1.2
[31]
2
F
IGURE
2.4.1 C
1.0
[25]
2.2
[55]
2-1. FID2 O
ONNECTIONS
.9
[23]
UTLINE AND MOUNTING DIMENSIONS
3.1
[78]
[23]
2.8
.8
[71]
[20]
.9
Refer to Figure 2-2. Connect inlet and outlet lines for sample, burner fuel and air, exhaust,
and bypass to appropriately labeled fittings on the rear panel. All connections are 1/4-inch
ferrule-type compression fittings. Burner exhaust and bypass must be vented at
atmospheric pressure to a non-classified location in accordance with ANSI/NFPA-496.
2.4.2 G
AS SPECIFICATIONS
Fuel Gas — Standard analysis usually requires mixed fuel, i.e., 40% (±2 %) hydrogen and
60% helium. H2/He mixed fuel is recommended over H2/N2 fuel because of better linearity in
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INSTALLATION
concentration output. Such blends are supplied by many gas vendors specifically for this
use, with a guaranteed maximum total hydrocarbon content of 0.5 ppm, measured as
methane. This specification should be used when obtaining these mixtures.
F
IGURE
FUEL IN
AIR
IN
2-2. FID2 R
SAMPLE
SAMPLE IN
EAR PANEL
BURNER
EXHAUST
Burner Air — In order to ensure a low background signal, hydrocarbon free grade air with
less than 1 ppm maximum total hydrocarbon content is highly recommended. An alternative
source for burner air and zero gas (see CALIBRATION GASES below) is a combination
diaphragm pump and heated palladium catalyst. This process continuously removes
moderate amounts of hydrocarb ons an d carbo n mo nox i de fro m ambie nt ai r.
Calibration Gases — Calibration method and gases depends on the type of fuel gas used,
the operating range, and the desired measurement accuracy. In all methods, zero and span
gases are used, and are introduced through the sample inlet at the rear of the module.
Zero Gas It is recommended that the gas should have a composition as close to the
background composition of the sample as possible.
Span Gas
Span gas consists of a specified concentration of methane and other
hydrocarbons in a background gas such as nitrogen.
Sample Gas — Sample gas must be nonflammable (below 100% of the sample's LEL).
Flow Rate — The sample flow rate must be between 0.5 L/min. and 2 L/min.
Pressure/Filtration — See Table 2-1 for input pressure specifications. Noncompliance with
these specifications could cause over-pressure damage to the module.
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INSTALLATION
GAS SUPPLYEXTERNAL PRESSUREINTERNAL PRESSURE
2
FUEL
BURNER AIR
S
AMPLE
T
ABLE
All internal pressure settings are preset at the factory, but the operator should check for
accuracy. It is essential that the sample be filtered for particulates down to 0.1microns. A suitable filter is the Balston type 95S6 with 0.1 micron filter element. It should
normally be replaced on a two week schedule, depending on the sample.
Leak Test — The Analyzer Module is completely tested at the factory for gas leakage. The
user is responsible for testing for leakage at the inlet and outlet fittings on the rear panel.
The user is also responsible for internal leak testing periodically and if any internal
pneumatic components are adjusted or replaced (with a test procedure chosen by the user).
2-1. G
AS SUPPLY PRESSURES
50 – 55 psig
1035 - 2070 hPa
50 - 55 psig
1380 - 4140 hPa
5 - 10 psig
345 - 690 hPa
5 psig
345 hPa
15 psig
1035 hPa
5 psig
345 hPa
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INSTALLATION
2.5 ELECTRICAL CONNECTIONS
NOTE
Electrical installation must be in compliance with National Electrical Code (NEC/NFPA
70) and/or any state or local codes.
Two electrical connections are required on the Analyzer Module: POWER and NETWORK.
See Figure 2-3. On the Analyzer Module, two NETWORK connectors are available, either
of which is appropriate for: 1) interconnection with the Back plane of the Platform or 2)
"daisy-chaining" with other NGA 2000 components, or 3) connection to a PC via a suitable
LONTALK adapter and software such as the NGA DDE server and client. Connect Analyzer
Module POWER to Back plane POWER or external 24 VDC power source.
Connect the network cable to either the NETWORK 1 or NETWORK 2 connection on the
Analyzer Module front panel, and the NETWORK connection on the LON I/O module if used
with a Platform, or directly to a computer using appropriate LONTALK adapter hardware and
software such as the NGA DDE server. Connect the power cable to both the Analyzer
Module front panel and to a 24V 5A minimum power supply.
F
IGURE
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2-3. FID2 F
FUEL OVERRIDE
IGNITE
POWER FLAME BLOCK SAMPLE IGNITE FUEL/AIR
OK
RONT PANEL
FUSE
3 2 1 LON2 LON1
T 6A
24V
24V POWER
FID 2
NETWORK
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INSTALLATION
2.6 INSTALLATION GUIDELINES
Is the Analyzer’s Location clean, weather-proofed, non-hazardous, vibration-free, and with a
stable ambient temperatur e?
Are gas supply cylinders equipped with a clean, hydrocarbon free two stage regulator and
shut off valve?
Are external tubing, regulators, valves, pumps, fittings etc. clean?
Is the correct fuel type being used?
Is the THC content of the supply gases compatible with the analysis range?
Are the burner exhaust and bypass vented to atmospheric pressure? Is the vent pressure
constant?
2
Is the burner exhaust tube slanted down a minimum of 6 degrees from horizontal?
Have all the external gas connections been leaked checked?
Has the dead volume for external sample and fuel lines been minimized?
Has clean stainless steel tubing been used for fuel and sample lines?
Is a suitable 0.1 micron filter used in the sample line?
Is the sample line and filter heated?
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INSTALLATION
NOTES
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STARTUP AND OPERATION
3.1 OVERVIEW
Prior to initial startup, the user should leak test the module as outlined in Section 2.
For the remainder of this section, Analyzer Module interconnection with a Platform or some
interfacing component will be assumed. Display and K eypad inform ation refers to u se of this
module with the Platform.
(For a complete description of Platform Front Panel controls and indicators, see the Platform
instruction manual.)
(For detailed information about the software operation of this analyzer, see Appendix E and
F, and the NGA Reference manual.)
3.2 DISPLAYS
3
Three kinds of Display screens are available to the user:
Run Mode
Menu
Help
3.2.1 R
F
IGURE
UN MODE DISPLAY
3-1. R
UN MODE DISPLAY
FID2
-19.4
RAW SIGNAL: 556320
PRESSURE: 14.7 psia
CASE TEMPERATURE: 45.3 C
NOISE LEVEL: 0.811 ppm
DISPLAYPARMS.MENUNEXTINFO
ppm THC
The Run Mode is the normal mode of operation. In this mode, the display will show the gas
measurement of the selected analyzer or subnode(the Control Module may be connected to
many analyzers at once, but only one may be displayed at a time as shown), the component
of interest, user-selectable (up to four) secondary variables, the current operations of the
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softkeys, and a graphic bar representing the displayed concentration as a percent of
fullscale.
It is also possible to show up to five analyzers or subnodes on the screen at once, each
analyzer having its own line on the display.
3.2.2 M
ENU DISPLAYS
The following is a brief description of the menus shown on the Platform Control Module as
they apply to the FID2 analyzer. Much more detail is available in the Platform manual as
well as in the NGA Reference manual.
The first menu shown for any of the subnodes is as follows:
Main Menu
Basic controls . . .
Expert controls and set up . . .
(Operation al configurat i on)
Technical level configuration . . .
(Diagnosti c and manuf a cturing/service)
DISPLAYPARMS.NEXTLOCKINFO
FIGURE
3-2. M
AIN MENU
The Main Menu is subdivided into three levels of control based generally on which
personnel is likely to use it: Basic Controls - Operators, Expert Controls and set up - System
Engineers, and Technical level configuration - Analyzer technicians. Many layers of the
menu structure are described at appropriate places throughout this manual.
From the Run Mode display, press the MENUS softkey to gain access to the Main Menu.
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The Basic controls menu is as follows:
STARTUP AND OPERATION
3
Basic Controls
CRANGE
CURRENTRNGHI
CONTROL
FLOW_IS (1)
CAL_VALIDITY
CALSTAT
DIGDIAG (5)
F
IGURE
3-3. B
Measurem en t range number:
Range upper limit:
Range and functional control:
Bypass sample flow:
Ranges with valid calibr ation:
Calibration status:
If it won’t calibrate . . .
Flame condition:
Light flame . . .
HOMEESCAPEZEROSPANINFO
ASIC CONTROLS MENU
This menu allows the user to change the range for all subnodes, to control the operation of
the GC (single shot or continuous operation) and to see its current operational status, to
allow remote control of the range change, and allows links to other menus to light the flame,
zero and span the analyzer.
NOTE
In the menu figure above, the italicized/capital words are the names of the network
variables whose values are in fact shown on the screen.
The Expert controls menu is as follows:
F
IGURE
3-4. E
Measurem en t range number:
Expert controls
Range upper limit:
Range sett i ngs . .
Linearizer:.
Range and functional control:
Zero/Span calibrati on. . .
Ranges with valid calibr ation:
Physical measurements. . .
Flame condition:
Light flame . . .
HOMEESCAPECALCAL DATAINFO
XPERT CONTROLS MENU
CRANGE
CURRENTRNGHI
CURRENTSTAT
CONTROL
CAL_VALIDITY
DIGDIAG
This menu is almost the same as the Basic controls menu but with the addition of a few
extra links.
The analyzer may be configured through the Analyzer set up menu, under Expert controlsand set up.
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Calibration gas list . . .
Calibration parameters . . .
Gas measurement parameters. . .
Analyzer parame te r l i st. . .
Physical measurement parameters . . .
Displayed para meters. . .
Analyzer tag:
HOMEESCAPEINFOSTORE
Analyzer module set up
TAG
F
IGURE
3-5. A
NALYZER MODULE SETUP MENU
This menu contains links to many other menus used to configure the operation of the
analyzer.
3.2.3 H
ELP DISPLAYS
A typical help menu:
Analyzer module set up
Select the aspect of the analyzer to configure.
Set up the calibration gas values in the calibration gas list.
Set up the other calibration parameters.
Linearizat i on, filtering and oth er functions are set up in menus
under meas urement parameters.
The analyzer pa ra meter lis t simply li sts all the settable pa rameters
in order.
Physical measurements s ho w fl o w, pressure etc. and asso ciated
limits.
Displayed parameters show what is displayed on the four auxiliary
lines on the single component di splay.
HOMEESCAPEINFO
F
IGURE
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3-6. T
YPICAL HELP MENU
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STARTUP AND OPERATION
3.3 STARTUP PROCEDURE
WARNING: VENTILATION
For safety, the Analyzer Module should be installed in a non-confined, ventilated
space. Do not block any of the ventilation holes as they are part of the safety
system.
1. Connect supply gases and outlets to/from module.
2. Connect the LON cable(s) and the +24VDC power cable.
3. Turn power ON.
4. Check the LED’s. The power green LED should be illuminated. The Flame LED should
be OFF. The block LED should be blinking or ON.
3
5. Allow the network to initialize. Perform any binding of I/O modules required – see the
Platform manual for detail s.
6. Check the general health of the analyzer by reviewing the status of the Self Tests. All
“Pass” conditions should be obtained.
These test results can be found by selecting the following from the Main menu:
Technical level configuration , Diagnostic menus, Analyzer module diagnostics, Self test
results. All tested parameters should indicate "Pass."
Power supply voltages . . .
Primary variable parameters . . .
Physical measurement parameters. . .
Temperature control parameters . . .
Miscellaneous control parameters . . .
Trend display control . . .
Auto ignition parameters . . .
Self test results . . .
Software diagnostics . . .
Start up analyzer . . .
HOMEESCAPEINFO
Analyzer Diagnostics
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IGURE
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NALYZER DIAGNOSTICS MENU
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STARTUP AND OPERATION
Self test results
SELFTEST (3)
SELFTEST (4)
F
IGURE
3-8. S
RAM test:
Power supply test:
HOMEESCAPEINFO
ELF TEST RESUL TS MENU
TEST
Descriptions of the tests performed follow:
RAM Test
Checks the RAM on the Analysis Computer PCB.
Power Supply Test
Verifies that all internal DC voltages are within the required tolerances.
The self-test can be repeated at any time by activating the TEST softkey in the Self Test
Results menu.
7. Introduce the remaining supply gases. Perform leak check. (See Specifications page(s)
in the Preface section of this manual)
8. Set and verify the internal gas pressures.
9. Allow the block to warm up to 50°C, approximately 30 minutes.
10. Note the six LED’s on the front panel of the Analyzer Module. They provide necessary
information for proper ignition procedure. The LED’s, when illuminated, denote the
following information:
Power - unit powered on
Flame - Flame on. If the module is trying to light the flame, with fuel flowing but no flame
detected, the LED will flash.
Block - Continuous illumination implies the block temperature is within 5% of its operating
temperature setpoint ; otherwise the LED will blink. If the oven temperature is too high th e
LED blinks at double speed.
Sample - Sample pressure is within ±15 % capillary requirement.
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STARTUP AND OPERATION
Ignite OK - The block temperature is ≥ 50°C allowing proper ignition to occur.
Fuel/Air - Proper fuel and air conditions exist to support a flame. Fuel pressure is between
400 and 675 hPa. Air pressure is between 800 and 1200 hPa. The ratio of fuel/air is
between 35% and 65%. This light will not come on until successful ignition.
3
Light Flame
DIGDIAG (5)
AUTOIGNITE
FUEL_FLOW
TIME_LEFT (2)
TIME_LEFT (1)
PRES_IS (3)
PRES_IS (2)
PRES_IS (1)
TEMP_IS (2)
FID-MSGE
F
IGURE
3-9. L
Flame condition:
Auto-ignition:
Ignition system enable:
Number of ignition attempts so far:
Time on this cycle – secs:
Fuel supply pressure:
Burner air pressure:
Sample pr essure:
Flame temperature:
Status:
HOMEABORTLIGHTINFO
IGHT FLAME MENU
11. Auto-ignite the flame. The Flame LED should then be continuously illuminated when the
flame is successfully lit.
12. Auto-ignition provides fuel override and three attempted ignitions (default setting), if
necessary.
13. Before ignition and operation, Fuel Flow must be set to ON in "Light Flame" display
screen under Basic Controls.
14. The front panel ignition switch must be manipulated in the following ways:
a. Press up and hold for 30 seconds. This puts the system into the enriched mode,
with lower air flow.
b. Press down to turn on the burner glow plug for up to 10 seconds.
c. Repeat as necessary (if fuel and air sources are farther away than 10 feet,
several more attempts may be necessary).
Flame on is defined as true when the flame temperature is greater than the block
temperature by the amount contained in the variable FLAME_DELTA.
d. If the flame has been lit, but the flame temperature increases slowly, perform the
following steps:
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3
(
)
STARTUP AND OPERATION
1) After igniting flame, wait for 2 seconds.
2) Press switch down momentarily.
3) Repeat release switch, wait and press down steps as necessary.
15. Check and re-adjust the internal pressures if required. The Fuel/Air light must be lit for
proper operation.
16. The unit is now ready for first binding as described in Section 3.5, and then optimization
as described below.
1.0
RESPONSE
100 ppm CH4 fullscale
F
IGURE
3-10. T
S
0.8
0.6
0.4
SAMPLE: 100 ppm CH4 in N
FUEL:10 psig (690 hPa) H
0.2
0
0
2
13.76
3
20.64
AIR:18 psig (1242 hPa)
4
27.52
psig
SAMPLE PRESSURE
hPa
YPICAL CURVES OF MODULE RESPONSE VS
AMPLE PRESSURE REGULATOR
5
34.4
. P
RESSURE SETTING ON
6
41.28
2
2
7
48.16
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psig (
RESPONSE
(
)
100 ppm CH4 fullscale
1.0
0.8
0.6
0.4
0.2
STARTUP AND OPERATION
SAMPLE: 100 ppm CH4 in N
at 5 psig (344 hPa)
2
3
F
IGURE
(100 ppm CH
3-11. T
RESPONSE
4 fullscale)
0
0
FUEL PRESSURE
YPICAL CURVES OF MODULE RESPONSE VS
F
UEL PRESSURE REGULATOR
1.0
FUEL: 10
0.8
FUEL: 7.5 psig (518 hPa) H
0.6
0.4
0.2
FUEL: 5 psig (345 hPa) H
SAMPLE: 100 ppm CH
5
345
7.5
518
psig
hPa
. P
RESSURE SETTING ON
690 hPa) H
at 5 psig (344 hPa)
2
2
2
4
in N
10
690
2
0
0
F
IGURE
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3-12. T
YPICAL CURVES OF MODULE RESPONSE VS
A
IR PRESSURE REGULATOR
10
690
14
966
AIR PRESSURE
20
1376
psig
hPa
. P
RESSURE SETTING ON
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3
STARTUP AND OPERATION
3.4 OPTIMIZATION PROCEDURE
Although the module has been set up for best operation at the factory, settings can change
and your application may be different. The following shows how to optimize the operation of
the FID2 for your application.
1. Ignite the flame of the FID2 using the startup procedure as above.
2. Verify that the mixed fuel supply pressure at the Analyzer’s rear panel bulkhead is
between 49 and 50 psig.
3. Allow the Analyzer module response to stabilize. Typically allow 1 to 4 hours.
4. Select the desired range to optimize. For best results use a span gas with a
concentration of 100 ppm CH4 or greater. This will minimize the effects of the THC
contamination in the fuel and burner air supply.
5. Set the internal sample pressure to the desired operating level. The sample pressure
must be kept constant throughout the optimization procedure.
6. Set the internal burner air pressure to between 965 to 1103 hPa-gauge (14 to 16 psig).
The burner air pressure must be kept constant throughout the optimization procedure.
7. Set the internal fuel pressure to 345 hPa-gauge (5 psig). Calibrate the instrument as
stated below.
8. Introduce the span gas and monitor the reading until it is stable. Increase the internal
fuel supply setting in the following sequence: 600 hPa-gauge (8.7 psig), 625 hPa-gauge
(9.1 psig), 650 hPa-gauge (9.4 psig), 675 hPa-gauge (9.8 psig), 700 hPa-gauge (10.1
psig), and 725 hPa-gauge (10.5 psig). Monitor the reading at each fuel pressure
setting. Wait at least 2 minutes between fuel setting changes. Record all the readings.
9. Review the readings for each fuel pressure setting. Select the fuel pressure setting that
produces a reading that is within 1% from the maximum. For this condition the FID2 is
operating at its optimized plateau.
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STARTUP AND OPERATION
3.5 BINDING
To achieve full coordination between Analyzer Modules and associated I/O Modules, the
user must bind those components together in the System Set Up portion of the TechnicalConfiguration Menu in software. (See the Platform manual for binding instructions.)
NOTE
If binding is attempted after ignition, the flame may be extinguished. If this occurs, it
must be re-ignited.
3.6 CALIBRATION
3
See Section 2.4.2 for a description of the method for choosing calibration zero and span
gases.
Menus used for calibration include the following:
Calibration gas list
ZEROGAS (1)
SPANGAS (1)
ZEROGAS (2)
SPANGAS (2)
ZEROGAS (3)
SPANGAS (3)
ZEROGAS (4)
SPANGAS (4)
CARBON_ATOMS
F
IGURE
3-13. T
Zero gas – range 1:
Span gas – range 1:
Zero gas – rang e 2:
Span gas – range 2:
Zero gas – rang e 3:
Span gas – range 3:
Zero gas – rang e 4:
Span gas – range 4:
Calibrati o n gas HC response fa ctor:
Calibration. . .
HOMEESCAPEINFO
YPICAL CALIBRATION GAS LIST MENU
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STARTUP AND OPERATION
Measurem en t range number:
Zero gas concentration:
Span gas co ncentrati o n:
Bypass sample flow:
Flame condition:
Raw measurement signal:
Date of last zero:
Error messag e for last zero:
Error percentage for last zer o:
Raw signal at l a s t zero:
Last zero gas would read:
Date of last span:
Error message for last span:
Error percentage for last s pa n:
Raw signal at l a s t span:
The last span gas would re ad :
HOMEESCAPEFACTORSINFO
ALIBRATION PARAMETERS MENU
Calibration parame t e rs
Calibration adjustment limits:
Calibration averaging time:
Calibration failure alarm:
Cal failure erro r al lowed:
Calibration time out:
Zero ranges:
Span ranges:
CALDATE_Z
CAL_ERR_MSG (1 )
CALRESULT (1)
CAL_RAWSI G (1 )
LASTZERO
CALDATE_S
CAL_ERR_MSG (2 )
CALRESULT (2)
CAL_RAWSI G (2 )
LASTSPAN
CALCHKLIMITS
CALTIME
CALFAIL
CALFPC
CALTIMEOUT
ZERORNGS
CALRANGES
F
IGURE
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3-16. Z
HOMEESCAPEINFO
ERO/SPAN DIAGNOSTIC DATA
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To calibrate the Analyzer Module, introduce span gas into the SAMPLE INLET, and do the
following:
1. If more than one Analyzer Module is functional and the split Run Mode display is shown,
press the DISPLAY softkey until the desired Analyzer's Run Mode display is acquired.
2. Press the MENUS softkey to enter the Main Menu.
3. Verify the fuel type in the Miscellaneous Control Parameters menu (under the Technical
Configuration menu structure, select the following from the Main Menu: Diagnosticmenus, Analyzer Module Diagnostics and then Miscellaneous Control Parameters).
4. In the Ca libration Gas List menu (from the Main Menu, select Expert Controls and Setup,Analyzer Module Setup, then Calibration Gas List), enter necessary data, including the
Calibration Gas HC Response Factor. Common HC factors are: methane (CH4), 1.0,
ethane (C2H6), 1.90, propane (C3H8), 3.00. These factors not only compensate the
reading, but are used to select the proper preamp sense resistor
3
5. Note that you can go straight to the zero and span calibration screens from here.
6. Press HOME to re-enter the Main Menu, enter the Basic Controls menu, introduce zero
gas and allow its response to stabilize, press the ZERO softkey to enter the AnalyzerZero menu, press ZERO again and wait.
7. Press the left arrow key to return to the previous menu, change ranges to the next range,
and repeat the zero.
8. Press the SPAN softkey to enter the Analyzer Span menu, introduce span gas and allow
its response to stabilize, press SPAN again and wait.
9. Press the HOME softkey to re-enter the Main Menu.
10. Press the DISPLAY softkey for the Run Mode display.
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STARTUP AND OPERATION
3.7 CALIBRATION DETAILS
The range change resistor in the preamp has some effect on the way the spans work. In
most NGA analyzers it is possible to make them zero and span all ranges together or
separately. If this option is selected, the analyzer attempts to determine if a zero or span is
appropriate using the supplied zero and span gases, and if the gases are suitable it will go
ahead and zero or span as many ranges as it can. The FID2 however may switch gains
between ranges, and if so it will not be able to zero or span the ranges on the other side of
the switching point.
The switching point is determined by a number of factors, including the gas response factor,
the sample pressure, the type of fuel and the capillary used. In general it will occur at about
600ppm of methane on a low range instrument. This means that if the ranges are set at 10,
100, 1000, 5000, the analyzer will be able to span the lower two, or the higher two at once,
but not all four.
Generally, it is best to operate the analyzer on a single range and calibrate that, or to
calibrate the ranges individually.
If the user is unable to calibrate the Analyzer Module (i.e., when ZERO or SPAN is initiated,
nothing happens), several possible solutions may be tried. One solution relates to the use of
an incorrect gas for zeroing or spanning (e.g., using a high concentration gas to zero or a
zero gas to span the Analyzer Module). Simply recalibrating with the appropriate gas(es)
may not correct the problem because the ZERO OFFSET or SPAN FACTOR has been set
to an extreme value in the process.
To remedy the problem, do the following:
1. Verify that correct zero and span calibration gases are being used properly. If so,
attempt to recalibrate according to instructions at the beginning of the previous section,
ensuring that case temperature and displayed measurement reading are stable before
initiating the calibration routine. If incorrect gases were used in the initial, failed
calibration, skip to Step 2.
2. Make the following selections from the Main Menu: Expert Controls and Setup, Analyzer
Module Setup, then Calibration Parameters. Disable Calibration Adjustment Limits.
3. Recalibrate the analyzer module according to instructions at the beginning of the
previous section, ensuring that case temperature and displayed measurement reading
are stable before initiating the calibration routine.
4. Enable Calibration Adjustment Limits in the Calibration Parameters menu.
For further information and troubleshooting tips, refer to the NGA Reference Manual.
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STARTUP AND OPERATION
3.8 ROUTINE OPERATION
After binding and calibration, proceed as follows:
Supply sample gas to the SAMPLE INLET. Adjust external flow controller or throttle valve so
that flow discharged from the BYPASS outlet is between 0.5 and 1.0 L/min. The reading on
the SAMPLE pressure gauge should be the same as that used during adjustment of the
span control. Adjust, if necessary.
Adjust the Range Number setting.
If maximum sensitivity is required from the FID2 Analyzer Module, use an optimum
combination of settings on the SAMPLE, FUEL, and AIR pressure controllers. Settings must
be determined experimentally, but the curves in Figures 3-7, 3-8 and 3-9 may be used as
guides for the FID2 optimization procedure above.
3
The Analyzer Module will not allow the user to increase the upper limit of a range beyond
the "maximum range" software setting. To change the "maximum range" value, select the
following from the Main Menu: Technical Configuration Menu, Service Menus,
Manufacturing Data, and Analyzer Manufacturing Data. Select Minimum/maximum ranges
and tags… and then Maximum Range, and use the arrow keys to scroll the indicated valuesfor each applicable measurement. The same applies for Minimum Range settings.
During shutdown, always turn off fuel gas first, then the air and sample gases. The flame
can also be turned off by setting Ignition System Enable to "Off" in the Light Flame menu
(under Basic Controls). Subsequently, remember to set Ignition System Enable to "On"
before attempting to ignite the flame.
After initial startup, or startup following a prolonged shutdown, the Analyzer Module requires
about one day's continuous operation to stabilize. For several days afterwards, calibrate
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STARTUP AND OPERATION
daily. The frequency of subsequent calibrations can be reduced as experience dictates,
consistent with the accuracy requirements of the particular application.
3.9 S
If the FID2 is to be left in the powered down state for any length of time greater than a few
hours, it is important that the flame tower be dried out before it cools off. This is to avoid
condensation causing corrosion. If the sample contains halogenated compounds this is
even more important.
Flush the flame tower with burner air for around an hour after the flame has been turned off.
Simply leave the burner air flowing. When no evidence of condensation can be seen in the
exhaust tubing, it is safe to switch off the FID2 power.
If this precaution is not taken, corrosion can occur making it hard or impossible to light the
flame.
HUT DOWN PROCEDURE
3.10 SAFETY SYSTEM
The FID2 Analyzer Module safety system is entirely passive. The pneumatic section of the
analyzer is designed to be intrinsically safe, except for the flame tower itself which is
designed to be explosion proof. Intrinsic safety design ensures that any energy released in
the hazardous area (the pneumatic section) will not be enough to ignite any hydrogen that
may have leaked. This is achieved by limiting the voltage and the current in all the circuitry
that enters this area. It is therefore essential that NO modifications are done to thecircuit boards. Any repairs should be performed at the factory where the correct
components will be used.
The flame tower is designed to be explosion proof. This is achieved by careful control of the
spacing and clearances of the assembly, and the presence of the various flow restrictive
devices and the outlet flame arrestor. It is essential that no changes be made to this
device that can impact any of these clearances, and thus that any repairs of the
device are such as to maintain its designed clearances. It is recommended that any
repairs of the flame tower be performed in the factory or at other authorized Rosemount
service centers.
A temperature safety system activates when the burner flame temperature exceeds
225
°°°°
C for over 60 seconds. This will shut off the fuel and d isplay a messa ge on the light
flame menu screen. After cooling to below 225°C, the unit can be re-ignited normally.
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STARTUP AND OPERATION
Verify that the proper fuel is being used. Do not use H2 in a unit configured for mixed
fuel.
Since the proper methane – non-methane process should be run under 200°C, you should
not experience this failure mode. If it occurs, contact Rosemount Analytical factory service.
3
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STARTUP AND OPERATION
3.11 ALARM INDICATIONS
NGA Analyzers from version 2.3 onwards can also report specific alarm conditions through
the I/O Modules. The FID2 Module (at version 3.2 at time of writing) is capable of reporting
a flame out condition and a valve failure as specific alarm indications.
The specific alarms are shown in Table 3-1.
DISPLAY MESSAGEDESCRIPTIONTYPE
NORMAL
MAINTENANCE REQUEST
FAILURE
CAL. IN PROGRESS
SPAN IN PROGRESS
ZERO FAILED
SPAN FAILED
RANGE OVERFLOW
RANGE UNDERFLOW
FLOW TOO LOW
FLOW TOO HIGH
RANGE 1, 2, 3, 4
FLAME OUT
FUEL SHUTOFF
No problem found
Warning alarm notedWarning
Failure alarm notedFailure
Performing a zero or span calibration
Performing a span calibration
The latest zero calibration failedWarning
The latest span calibration failedWarning
The reading is higher than the current
range upper limit
The reading is lower than the next
range down's upper limit
Sample pressure is below lower limitWarning
Sample pressure is above upper limitWarning
Indicates current range
Flame is offWarning
Fuel is shut off due to flame over
225°C. This is not a normal operating
condition.
Warning
Action
T
ABLE
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3-1. FID2 A
NALYZER MODULE ALARMS
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STARTUP AND OPERATION
3.12 CONFIGURATION STORAGE
The FID2 analyzer module allows you to store a complete set of configuration variables
once the unit has been set up to your satisfaction. This is in addition to the manufacturing
variables and the so-called "history" variables already provided by earlier NGA analyzers.
If the configuration is damaged in some way it is possible to press a single softkey and
replace the damaged variables with those from the stored set.
Storing the variables can be done by entering the Expert controls and set up menu, and
pressing the STORE button. This leads to an "Are you sure?" menu, giving you a chance to
change your mind. If you want to store the variables, press the STORE button in this menu.
To restore them all from the stored values, press RESTORE.
3
Store/Restore user settings
Are you sure?
STORE button saves various user se t tings for l a t er usage.
RESTORE will restore the previously saved user settings.
HOMEESCAPESTORERESTOREINFO
F
IGURE
3-18. S
TORE/RESTORE USER SETTINGS MENU
There is another set of stored variables (just as complete as this set) accessed through the
manufacturing data menu (under Technical set up, Service menus, Manufacturing data,Analyzer manufacturing data). Pressing the STORE button in this menu leads to a similar
"Are you sure?" screen, with the same functionality. This set of variables is intended to
store the initial set up as stored at the factory, so be wary of using it.
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STARTUP AND OPERATION
Store historical data
Are you sure?
STORE will copy current diagnostic data into the historical
currentl y t here.
If you are sure, press ST O R E again.
RESTORE will do the opposite and move data from historical to
current val ues.
If you are sure , press REST O R E
HOMEESCAPESTORERESTOREINFO
F
IGURE
3-19. S
TORE HISTORICAL DATA MENU
For those who use a computer and the LON network to control this analyzer, the storage
variables have the same names as the current variables, but with the addition of "ZZ" at the
beginning for the user storage type, and "YY" at the beginning for the factory storage type.
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MAINTENANCE AND TROUBLESHOOTING
4
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4
MAINTENANCE AND TROUBLESHOOTING
F
IGURE
F
IGURE
4-2. R
4-3. M
EMOV AL OF
FID2 C
FUEL OVERRIDE
IGNITE
POWER FLAME BLOCK SAMPLE IGNITE FUEL/AIR
OK
AIN POWER FUSE
OVER
Fuse
3 2 1 LON2 LON1
T 6A
24V
250 V
FID 2
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MAINTENANCE AND TROUBLESHOOTING
4.2 FUSES
The analyzer module has five fuses, all of which are located on the Module Board.
The main power fuse is accessible through the front panel of the instrument. See Figure 4-3.
The remaining fuses are located on the solder side of the Module Board (the side facing
downward). To access these four fuses, the Module Board must be removed from the
analyzer (see Figure 4-4).
4
R32
F4
F5
F3
F2
F
IGURE
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4-4. F
USE LOCATIONS ON MODULE BOARD
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4
MAINTENANCE AND TROUBLESHOOTING
4.3 BURNER BLOCK REMOVAL AND INSTALLATION
CAUTION: : QUALIFIED PERSONNEL
The burner block assembly should not be adjusted, cleaned or repaired by
anyone except factory service personnel. Failure to observe this caution will
void agency approvals.
CAUTION: BURNER
If a burner problem occurs, remove the burner block assembly from the oven
and return it to Rosemount Analytical for maintenance and/or repair (see
Preface).
The block is temperature controlled at 70
any of these components.
Removal
Refer to Figures 4-1, 4-2, 4-6, 4-7 and 4-8.
1. Power OFF the module
2. Shut off gas, air and sample gases.
3. Remove the 24 screws securing the module cover. Remove the cover.
4. Remove the four screws securing the oven cover. Remove the oven cover.
5. Disconnect the RTD Cable, 90V Cable, Thermistor Cable, Signal Cable and Ignitor
Cable.
6. Disconnect the Air, Fuel and Sample Capillaries.
7. Disconnect the exhaust tube at the oven wall outlet.
8. Loosen the four hex nuts holding the burner block assembly in the oven. Slide the block
towards the rear of the module and lift out.
°°°°
C. Allow unit to cool before touching
Installation is the reverse of removal.
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MAINTENANCE AND TROUBLESHOOTING
4.4 BURNER STARTUP AND TROUBLESHOOTING
If burner startup is not achievable, check the following:
1. All supply gas cylinder pressures are within specification (see Specifications in Preface).
2. Correct gases are being supplied to each back panel inlet.
3. Air, not zero gas (if nitrogen), is being supplied to burner.
4. Burner exhaust is being vented to atmospheric pressure, and is not tied to either purge
air exhaust or another FID exhaust.
6. IS parameters match WAS parameters in the Physical Measurement screen; use MORE
softkey to view all parameters.
4
F
IGURE
4-5. P
Sample capillary pressure:
Sample capillary pressure was:
Fuel supply pressure:
Fuel supply pressure was:
Carrier gas pressure:
Carrier gas pressure was:
Burner air pressure:
Burner air pres sure was:
Pressure limits . . .
Temperature limits . . .
HOMEESCAPEMOREINFO
Physical measurement parameters
PRES_IS (1)
P_WAS (1)
PRES_IS (3)
P_WAS (3)
PRES_IS (5)
P_WAS (4)
PRES_IS (2)
P_WAS (2)
HYSICAL MEASUREMENT PARAMETERS MENU
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4
g
MAINTENANCE AND TROUBLESHOOTING
Computer Board
Module Board
Heater, Block
Front Panel
Burner Block
Mounting Bracket,
ulator
Re
Regulator
Tube, Sample In
Tube, Sample
Bypass Out
Tube,
Exhaust
Burner
Exhaust
Out
Sample
Bypass
Out
Sample In
Flow Control
Manifold
F
IGURE
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Rosemount Analytical NGA 2000
4-6. FID2 – E
XPLODED VIEW
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RTD Cable
RTD
MAINTENANCE AND TROUBLESHOOTING
Cover
4
90V Cable
Signal Cable
Base
Burner
(see Figure 4-8)
Cover Plate
Mounting Plate
Note: This exploded view of the burner block is for information only. All servicing of
the burner block must be performed by Rosemount Analytical.
IGURE
F
748412-C
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4-7. B
URNER BLOCK
XPLODED VIEW
– E
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4
MAINTENANCE AND TROUBLESHOOTING
Exhaust
Thermistor Cable
(yellow)
Ignitor Cable
(green)
90V Cable
(coax)
Sample Capillary
Air Capillary
Fuel Capillary
Note: This view of the burner is for information only. All servicing of the burner
must be performed by Rosemount Analytical.
F
IGURE
4-8. B
URNER
4.5 MAINTENANCE SCHEDULE
ITEMEVENTTIME
R
EPLACE EXHAUST TUBING
If plastic crackedApprox. 5 years
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REPLACEMENT PARTS
WARNING: PARTS INTEGRITY
Tampering with or unauthorized substitution of components may adversely
affect safety of this product. Use only factory-approved components for repair.
658144Heater, Block
659043Flow Control Manifold Assembly
The following components are selectable per application. Consult factory.
Fuel Capillary
Restrictor, Flow
Sample Capillary
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5
REPLACEMENT PARTS
NOTES
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APPENDIX A. GAS SAFETY FEATURES
A.1 GAS SAFETY FEATURES
The NGA 2000 Flame Ionization Detector Analysis Module is designed to meet international
safety standards in accordance with IEC 1010 and other related documents. The gas
handling part of the module is designed to be intrinsically safe, other than the flame tower
which is explosion proof (Ex"i" and Ex"d" respectively)
The standard module is only equipped to analyze a non-flammable sample, below 100% of
the lower flammable limit.
WARNING: POSSIBLE EXPLOSION HAZARD
Protection against explosion depends upon a special fuel flow limiting restrictor
in fuel inlet fitting. Do not remove fuel inlet restrictor. Use the correct fuel flow
limiting restrictor for the fuel being used. Do not use 100% hydrogen fuel in a
40% H2/60% He configured Analysis Module. Replace only with factory supplied
fitting.
A
T
ABLE
T
ABLE
l00 cc/min
10 cc/min
400 cc/min
A-1. T
F
UEL
S
AMPLE
A
IR
YPICAL FLOW RATES WITH PREMIXED FUEL
ANALYZER CHARACTERISTICS40% H2/60% HE
F
ULLSCALE SENSITIVITY
F
UEL CONSUMPTION
O
PERATING RANGE FOR SAMPLE PRESSURE
R
EGULATOR
A-2. A
NALYZER CHARACTERISTICS FOR DIFFERENT FUELS
4 ppm, CH4 to <5%, CH
4
80 to 100 cc/min
207 to 345 hPa-gauge (3 to
5 psig)
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A
APPENDIX A. GAS SAFETY FEATURES
NOTES
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A2
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APPENDIX B. ANALYZER SETUP CHECKLIST
B.1 ANALYZER SETUP CHECKLIST
The following checklist is designed to provide a series of steps that should be undertaken
during the installation process. The first step in troubleshooting an analyzer system should
be to go through this list making sure that all items have been addressed.
B
B.1.1 S
Tags – each subnode
Module binding
Date and time
Security
Screen display
B.1.2 A
YSTEM SETUP
NALYZER MODULE SETUP
Gas Measurement Parameters
Measured Gas
• Name the gases
• Set response factors
Ranges
• Set all ranges
Linearization
• Edit coefficients
748412-C
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• Assign curves to ranges
• Enable curves
• Mid point check
Response Time
• Set response times
• Set LON update time
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B
APPENDIX B. ANALYZER SETUP CHECKLIST
Calibration Gases
• Set zero and span gas levels for each range
Calibration Parameters
• Set limit checking
• Set timing
• Set how it calibrates on ranges
Physical Measurement Parameters - Pressures and Flows
• Set all supporting gas pressures
• Check sample gas flow
• Light flame
Technical Configuration
• Check gain
Zero/Span Analyzer
• Disable limit checking
• Flow zero gas, zero the analyzer
• Flow span gas, span the analyzer
• Enable limit checking
Verify Linearity (optional)
• Connect a gas divider or set of calibration gases
• Verify mid-range readings
• If necessary, linearize the analyzer.
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APPENDIX B. ANALYZER SETUP CHECKLIST
B.2 AUXILIARY MODULE SETUP
IO Parameters
• Analog output type (voltage/current)
• Calibrate output
• Set output behavior on analyzer error
• Set auto-range change operation
• Set alarm relay behavior
Autocalibration Parameters
B
• Set timing of overall operation
• Set master/slave relationships
• Set valve timing
• Set ranges to be calibrated
• (Single autocal only) Set analog output behavior
• Verify sample system operation
B.3 COMPUTER INTERFACE SETUP
• Install computer hardware
• Verify set up of hardware driver in CONFIG.SYS
• Install DDE server program
• Run the DDE server
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• Debug the system if necessary with MAKE_API.EXE
• Set up applications
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B
APPENDIX B. ANALYZER SETUP CHECKLIST
NOTES
Flame Ionization Detector 2 Analyzer Module
B4
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APPENDIX C. USER INTERFACE HELP
C.1 INSTRUCTIONS
This section provides a means of rapidly finding any desired function or configuration factor
in the menu system.
The NGA menu system is necessarily complex due to the wide variety of configuration
possibilities available with the NGA architecture.
This section consists of a series of titles describing the function or configuration desired,
with a series of menu titles that show the path taken to that function.
The menu selections are sometimes abbreviated; Basic Controls is referred to as Basic for
example, Expert controls and set up as Expert, and Technical level configuration as
Technical.
PATH: Expert - Analyzer set up - Analyzer tag
PATH: Technical - Service - Manufacturing - Analyzer manufacturing data
Note: Set for each analyzer and also for each subnode
A
UTO-IGNITION ENABLED
PATH: Basic - Light flame – Auto-ignition
Note: Automates the light flame sequence, does not light without user prompting though.
B
AROMETRIC PRESSURE
PATH: Expert - Analyzer set up - Physical measurement parameters - Pressure limits
Note: Reads data only from other bound analyzers
PATH: Expert - Analyzer se t up - Calibration pa rameters - Zero ranges
Note: Doesn’t work if ranges span the main gain switch point
B
ASIC
- ZERO
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C
APPENDIX C. USER INTERFACE HELP
NOTES
C14
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APPENDIX D. FID2 IDENTIFICATION MATRIX
Each analyzer is configured per the customer sales order. Below is the FID2 sales matrix
which lists the various configurations available.
To identify the configuration of an analyzer, locate analyzer name-rating plate. The FID2
has two (identical) name-rating plates, one located on the rear of the front panel (inside the
analyzer), and the second located on the front-right-side of the analyzer cover (viewing
analyzer from front panel). T he 12-position sales matrix identifier number appears on the
analyzer name-rating plate.
This addendum serves as an amendment to the FID2 Instruction Manual 748412. The
following information should be considered part of the manual, and supersedes any
conflicting information in the body of the manual.
Read this information and note the conflicts.
M
ENU DISPLAYS
Menu: 0 ANALOP
AST LA PALMA AVENUE • ANAHEIM
4125 E
UGUST
A
Menu: 1 ANALSET
Rosemount Analytical Inc.
ALIFORNIA
1999
, C
•
92807-1802 •
015-748432-A
• PRINTED IN
(714) 986-7600 •
USA
FAX: (714) 577-8006
Page 90
ADDENDUM
Menu: 2 EXP_CAL
Menu: 3 FLOCHEK
2 of 42
Menu: 4 ZEROI1
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Menu: 5 FLOCHEKI1
Menu: 6 ANALOPI1
ADDENDUM
Menu: 7 ACALSET
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ADDENDUM
Menu: 8 APARLST
Menu: 9 ANALSETI1
4 of 42
Menu: 10 CALLISTI1
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Page 93
Menu: 11 ACALSETI1
Menu: 12 APARLSTI1
ADDENDUM
Menu: 13 AMMAN
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ADDENDUM
Menu: 14 AMMANI1
Menu: 15 AMSVC
6 of 42
Menu: 16 AMSVCI1
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Page 95
Menu: 17 ADIAG
Menu: 18 AMPWR
ADDENDUM
Menu: 19 AM1V
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ADDENDUM
Menu: 20 AMTEMP
Menu: 21 AMMISC
8 of 42
Menu: 22 AMTREND
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Menu: 23 ADIAGI1
Menu: 24 RANGESETAM
ADDENDUM
Menu: 25 RANGESSETI1
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ADDENDUM
Menu: 26 LINRANGE1
Menu: 27 LINRANGE2
10 of 42
Menu: 28 LINRANGE3
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Menu: 29 LINRANGE4
Menu: 30 LINRANGE0
ADDENDUM
Menu: 31 AMPWRI1
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ADDENDUM
Menu: 32 FLOCHEK1I1
Menu: 33 FILTER
12 of 42
Menu: 34 AM1VI1
Rosemount AnalyticalAugust 1999748432-A
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